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User`s Manual for PowerSight PS3500

1. Please note Be careful with how you connect a Line to DC Converter LDC accessory while operating in disturbance monitoring mode The LDC has an effect on transient spikes so it can defeat the purpose of monitoring The solution is to connect the LDC to two voltage leads that are not being monitored This way it will have no affect on the lead being monitored 123 Report Generator Software Introduction PSM comes with a Report Generator Software program The Report Generator software provides concise reports to summarize and document findings Comparison reports are excellent for presenting before after comparisons of power usage and projected cost Separate logs can be compared or sections of the same log can be compared for this analysis Summary reports summarize the data of a log or a designated section of the log The reports can be data only or can combine data and graphs Generating a Report To generate a report either a Seine Von Wadim Dannata Hes click File and then New wem toc wem toc pi al gt gt Report at the main menu of tess rss PSM or run the program Sonali anos Report exe located in the reer a same directory of your jeceive Data computer that psm exe is aceite Eai installed in The Report Information screen will now be displayed This screen allows you to enter general information that will be printed on the report such as the title of the report a
2. File and then w nen View Consumption Data Any of Eo A Receive or View Data Unit 65 these approaches will result in the Finca ime 32 View Consumption Data screen eee 1 Data Serial Comm enabled being shown In the Types to cee oes View Swell Dip Data Memory Extended View section click on Data Log if necessary to select that choice A l list will appear of all consumption logs located in the directory shown in the Look In box If you nae wish to look in a different Select S directory use the standard View Transient Data Windows methods for a evn T urent 2V2n lear changing the directory that Avamemianmn cay an is shown Next select a eee specific consumption log Civan 7 P Power Factor by double clicking on it C Energy KWH C Energy VARH C Harmonic Distortion When you select a Leone consumption log to view the Select Signals to View window pops open vou ais make EEES mwh VE CHE e n Han GEAN View Choices ofmeasureme ttyp s that are AATED in he log wilt be i E out Record 68 16 23 00 9 23 02 i hose one phase to view the maximum e Qf the HE oa ie course averai or minimum will onl d if that measurement type was included in the data 0 00 T 10 17 00 18 08 00 2 06 00 9 59 00 17 57 00 1 55 00 14 11 00 22 04 00 6 02 00 14 01 00 21 53 00 9423102 9823 9723 97
3. cccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 61 Power MeasSurementts cccccececeeeeeececeeeeeeeseecnaeeeeeeeseseesenaneeeeeeess 61 Power Measurements in PowerSight cccccesceeeeeeeseeeeeeseeeeeeees 62 Power Measurements in PSM cccccscceesesseeeceeseeeeseneeeeesneeeeseaaes 63 Power Factor Measurement ccecceceeeeeeeeeeaeeeeeeeeeseenenaeeeeeeeess 64 True Power Factor Measurements in PowerSight 0 ccseseeee 66 Displacement P F and Phase Measurements in PowerSight 67 Power Factor and Phase Measurements in PSM oseese 69 Energy Measurement 1 00 02 eccceceeeeeeeeeeeeeeeeeeeeeeeeeseeaaeeeeeeaaeeeeeenaeeeeeeaaes 70 Energy Measurements in PowerSight cccccesceeeeeeeeeeeeeseeeeeeeees 71 Energy Measurements in PSM ccccceceeeeeceeeeeeneeseeeeeteeeeeeaeeeeeeeee 72 Cost Measurements cccccceessceceeenececeeseeecesseeeeeesaeeeeessaeeeeseneeeeeees 72 Cost Measurements in PowerSight ccccccceeececeeeeseeeeeeeaeeeeeeeeaes 73 Cost Measurements in PSM c cccecceeeeeeeceeeeeseeseeeeeseaeeeseaeeeeneeseaes 74 Demand Period Measurements 2 ccceceeeeeeeeeeeeeeeeeeeseeneneeeeeeees 75 Demand Period Measurements in PowerSight ccceseeeeneees 75 Demand Period Measurements in PSM 0 c ccssceeeeceeeeeeeeeteeeeeeees 75 Frequency Measurement ccccccececeeceeeeeeeneeeeseenaeeeeeenaeeeeeenaeeeeeenaes 76
4. or phase to phase p p If the wrong voltage mode is selected it will not affect the power readings If you wish to change it use the Measure Mode key to do so or use PSM to change the data logging setup The bottom line of the display tells the specific voltage type of the general system that has been detected For instance a typical display is 277 480 V p n p p This means the nominal voltages present are 277 Vrms phase neutral and 480 Vrms phase phase If the voltages are not of a standard magnitude Non Standard is displayed on the second line Error Summary When the display reports the type of system that is detected it also advises once each 6 seconds how many errors it suspects there are For instance it might report maybe 3 errors or if all is well it may report no errors detected The language of these messages is not definite because in the real world of power there may be many possible connection explanations for a given set of measurements For instance if you hook up to a 3 phase power system but have your current probes attached off one position to the left that is the l1 input is actually l3 the l2 input is actually l1 and the l3 input is actually 12 and each of the probes is attached backwards the readings that result may look correct they will have been shifted 60 degrees So PowerSight might report no errors detected and with good reason but the connections ar
5. FX3000 discontinued FX5000 HA10 discontinued HA100 HA150 discontinued HA1000 HA3000 HA5 HA500 discontinued Yes not compatible use 120ADP a Yes Yes not compatible use new version Yes Yes Yes for Euro 220V standard not compatible not compatible Yes for US 120V standard not compatible Yes not compatible Yes Yes Yes not compatible Yes Yes not compatible use FX3000a Yes not compatible Yes Yes all units Yes Yes not compatible 152 Accessories cont d PS3500 sd HA GFD LDC original LDC2 LDC3 LDC4 SafeConnect SCAS2 soft operating case SCAS3 soft accessory case SCAS4 soft all in one Yes not compatible Yes not compatible Yes Yes No Yes Yes 153 Specifications Size 3 88 9 86cm Wide x 7 72 19 61cm Long x 1 58 4 01cm Deep in Hand held region 2 14 5 44cm deep at the top end Weight 1 1 pound 0 5 kg Operating Range 0 50 degrees C 82 122 degrees F Relative humidity to 70 non condensing Meets mechanical shock requirements of MIL PRF 28800F for a class 1 harshest environment Safety and Environmental Protection CE rated 600V input CAT IV per IEC61010 1 2001 IP40 IP44 with CAS W option per IEC 529 Power Requirement 12 VDC 500 ma wall mount power supply included Internal Ni Cad operates up to 10 hours after overnight charge Voltage Input Range 1 600 Vrms steady state direct
6. Frequency Measurements in PowerSight ccceeceeseteeeseeeeeeeeees 77 Frequency Measurements in PSM cccccceceeeeeeseeeeeeeeseeeeeaeeeeeeeees 77 Duty Cycle Power Cycle Measurements c ccccceesseeesesteeeeeeaaes 78 Duty Cycle Power Cycle Measurements in PowerSighNt 00 79 Time and Capacity Measurementt c cccccceeeseeceeeeeeeeeeeteaeeeeaeeeeaes 79 Time and Capacity Measurements in PowerSight 0 cceeeeee 81 Time and Capacity Measurements in PSM s 82 Harmonic Measurement cccccccceeececeeceeeeeeeeeecaeaeeeeeeeseeeeseaeeeeeess 82 Harmonic Measurements in PowerSight ccccceceeeeessteeeeseeeeeees 84 Harmonic Measurements in PSM ccccceceeeeeeeeeeeeeeseeeeeeeaeeeseeeeeeees 84 Disturbance Transient Measurements in PowerSigNt 0 85 Measurement Modes ccccccccsseeeeeeeeeeeeeeeseeeeeneeeeeeeeeeeeeeenneees 87 Introducing Measurement Modes eccceeeeeeeeeeeeeeeeeeeenaeeeeeenaeeeeeenaes 87 Phase Neutral vs Phase Phase vs 2 Current Mode 87 Changing the Voltage Measurement Mode in PowerSight 89 Changing the Voltage Measurement Mode in PSM 0 ccseceeeeees 89 50 60 400Hz vs DC vs Variable Frequency ccccceseeeeesseeeeeteeteees 90 Changing the Frequency Measurement Mode in PowerSigh1t 91 Changing the Frequency Measurement Mode in PSM 0 0 92 Always Po
7. If energy consumption is being monitored the maximum minimum and average RMS voltage is displayed by repeatedly pressing More after displaying the appropriate present voltage In this way by combining the Volt and More keys there are 12 RMS voltage measurements available For instance if the average voltage between V2 and VN is desired press Volt to display Vin Volt to display V2n More to display maximum Van More to display minimum V2n and then More to display average Ven Following viewing each of the phases a summary display of all of the phases can be seen Note that if PowerSight is not monitoring consumption the maximum minimum and average values are the results from the last monitoring session Please note that when PowerSight is operating in 2 current mode V31 is not calculated 54 Any Display Other Than Voltage Volt Va More More More More Volt More More More More Volt T More Vama More V min More Vayavg More Volt NA es At ages Mea aga Man nea Volt User Interface for Voltage Measurements To set PowerSight for reading phase neutral phase phase or DC voltages refer to the Measurement Modes chapter If a connection is not made to the VN input PowerSight will find the neutral point between all the phases in doing its phase neutral me
8. TPF min More TPF avg More Power Factor 4 TPF More TPF ynax More TF yin More TPF yaval More Power Factor All TPFs Maximums Minimums Averages TPF TPF TPF TPF More TPF Ter f Morel ter Ter f More TPF TPNy TPF TPNy TPF TPN TPF TPNy l Poer Factor User Interface for True Power Factor Measurements In this way by combining the Power Factor and More keys there are 16 true power factor measurements available The display of true power factor gives an indication if current may be leading or lagging voltage For instance if current lags voltage in phase 1 the display will read Vin l1 If current leads voltage the display reverses the order and reads h Vin If voltage and current are roughly in phase the indication may switch back and forth regularly To get a definite indication of whether current is lagging you need to measure displacement power factor Displacement P F and Phase Measurements in PowerSight 67 PowerSight performs all commonly desired displacement power factor measurements The displacement power factors of phases 1 2 and 3 can be displayed To view displacement power factor press Power Factor If the display says Displacement P F then pressing Power Factor repeatedly will allow you to view the displacement power factors of phases 1 2 and 3 If the display says True P F then pr
9. Yes Accept for use in answering questions or accepting entries No Reject for use in answering questions or rejecting entries Increment for incrementing letters or numbers Decrement for decrementing letters or numbers Capture Waveforms for capturing waveform sets inside the meter Admin for identifying serial number hardware software versions installed options or warranty expiration date For changing the time date greeting or 2 current power mode Measure Mode set voltage measurement mode frequency measurement mode power measurement mode Setup for checking if the unit is connected correctly setting trigger thresholds for capturing events logging interval cost of energy on current and for moving cursor to the left Input Ratios gt for setting input ratios and for moving cursor to the right On Off Turns the meter on and off 151 Compatibility Guide Although we attempt to make all products and accessories compatible there are limitations to what devices and versions can work well together The PS3500 must be used with PSM software of at least the 3 3 series Compatibility of the PS3500 with Summit Technology accessories is as follows Accessories PS53500 _ _ 120ADP a 120ADP discontinued 15KVP 5KVP 5KVP version with external box CAS3 CASW CHG1 CHG2 CHG3 CHG4 COMM DC600 DC ISO discontinued DFV DXV MEM1 FAO eFX6000 FX3000a
10. after analyzing all the voltage and current inputs PowerSight identifies what type of system is connected Error Summary after analyzing connections the number of possible errors detected is displayed appearing for one second each 6 seconds Identify Errors If errors were detected pressing the More key will result in each error being identified on the display Press the More key repeatedly to advance through the list of errors Provide Error Diagnostic Information for each error message that is displayed the background measurements that indicate the error are displayed once each 6 seconds Once you have proceeded through this sequence of identifying the system and possible errors and have corrected the problems you can proceed knowing that the power wiring and PowerSight s connections to it are probably correct Identifying the Power System After the SureStart feature is done analyzing the inputs the type of power system that is present is displayed on PowerSight Check that you agree that PowerSight has identified the system correctly If it hasn t there is probably a problem with the system or the connections The general types of systems that are identified on the top line of the display are Single phase Split phase two phase Three phase 4 wire delta For each of those general systems the display indicates whether voltages will be displayed and recorded as phase to neutral p n
11. waveforms usually start with a negative number This is an indication of how far in advance of the triggering event that point is All graphs and waveforms have a time and date stamp In the case of consumption logs the left most timestamp is when the displayed data began In the case of triggered events the time and date stamp is when the event occurred All graphs and waveforms have data that is displayed The 2 eis ED heading tells which signal or measurement is associated with which data The color of the heading is the same as the color of the data presentation Summary data is displayed on all graphs and waveforms a For a consumption log the summary data for a specific heading depends on the measurement If it is an average the summary is the average of all the values shown If it is a minimum it is the minimum of all the values shown If it is a maximum it is the maximum of all the values shown If it is an energy KWH it is the final point shown the energy consumed during the time displayed b For a consumption waveform the summary for a specific signal is the RMS value and crest factor of the signal The power and power factor of the phase or phases is also shown at the right Information specific to the position of the cursor is displayed For instance when the cursor is positioned over a consumption log the data values at that time are presented within parentheses under the signal names in
12. 26 amps then enter an input ratio for that phase of 0 26 1 Perform steps 1 through 8 for each phase Now connect each probe to the chosen conductor of each phase and begin monitoring All the readings and logged values will be substantially correct 31 Measuring Currents Below the Range of the Current Probe A problem with measuring smaller currents arises when the current to be measured is below the range of the current probe In such cases the current may not be read or the reading may be inaccurate In addition any waveforms that are captured will have excessive noise on them If you are using a flexible current probe you can simply wrap it around the conductor twice in order to double the magnetic field strength This can get it in the measurement range and it boosts the signal to noise ratio If you use this method set the input ratio for the current probe to 1 2 see the Changing Input Ratios in extra length of wire that is PowerSight section wound up into a coil of 10 turns Clamping your current probe around this extension coil will wy If the current to be measured is small it may be acceptable to open the circuit and insert an boost the signal strength 10 times and allow accurate reading of small currents If you use this method set the input ratio for the current probe to 1 10 or however many turns there are in the coil 32 Turning PowerSight On Connecting to Power Although
13. 5 Harmonic Graph icon or click ee on View then Harmonic 500 0 6 20 22 24 seateeeeecese Graph To transform a waveform into harmonic data either click on the Harmonic Data icon or click on View then Harmonic Data You have the choice of viewing the amplitudes of individual harmonics as either RMS amplitudes Vrms or Arms or as a percentage of the magnitude of the fundamental harmonic the fundamental is always 100 as large as itself To change to 102 magnitude or to percentage click on the little box to the right of the harmonics icons PowerSiaht Manager SHpMotor wfm To transform back from one of the harmonic presentations into a waveform presentation either click on the Waveform icon or f a ji Pe gt RMS Value 206 5 click on View then Waveform Crest Factor 1 5 You can easily display a phasor diagram of the signals by either a aD Le EE clicking on the phasor icon or ral clicking on View and then Phasor Diagram Phasor diagrams present each voltage Crest Fator ES and current as a vector on a 500 0 graph A vector combines two measurement properties into one object In this case the properties are magnitude and phase lag Normally phase 1 voltage is considered to be the phase reference PowerSight Manager wfm04_12_25_07_279 wfm File Edit Yiew Harmonics Help a e ofS ajap a elel 2 Slo el 5HP Motor
14. Clear Internal Memory is presented If you press Yes all data is erased in the meter 112 Custom Consumption Data Logging Introduction PowerSight has many optional ways of operating that allow you to accomplish almost any type of power logging task you may wish to do It does this by allowing you to make choices in the areas of when or how to start logging when or how to stop logging how often to create records what data measurement types to include in the log what voltage measurement mode to operate in what frequency measurement mode to operate in what power measurement mode to operate in how to define the inputs Each of these general areas will be covered in the following sections The collection of choices that are made on how to operate is called a setup file You can use the default setup file supplied by Summit Technology or you can create store and retrieve your own Starting Data Logging There are several methods to initiate data logging One method if PowerSight is connected to a PC is to click on the Data Setup button on the main menu of PSM and then clicking on the Start Logging button No matter what method is used to start logging you can always know if PowerSight is logging If logging is in progress there will be flashing asterisks appearing on both ends of the bottom line of the PowerSight display The other methods of starting logging can be set within t
15. Connections and Wiring 0cceseeeeeee 42 3 Identifying the Power System cccecceceeeeeseeeeeeneeeeeeeeseeeeeeeeeeeeeeees 44 Error SUMMARY siriani dee neni il eee deeded ene 45 Identifying ErrOrs i 2ccsisscc vied cndetee eels A eai 45 Checking out Connections using PSM csssseeeeeteeeeeeeees 48 Checking Voltage Levels Using PSM cccccsssececeesteeeeesteeeeeees 48 Check Voltage Phase Sequence Using PSM 49 Checking Current Levels Using PSM c cccsssteceeessteeeeessteeeeeens 50 Checking Phase Sequence Using PSM cccceeeeeeeseeeeeneetees 51 Checking Phase Lag Angle Using PSM ccccsscceesteeeeeeseeeeeees 51 Measurement Types eccccceesseeeeeeeeeeeeeeeeaeeeeeeeeeeeeeeeeeeeenneees 53 Voltage Measurements ccceecceeeeeeeeeeeeeeeeeeeseneeeeeeeeeeeeeteneeeeeeeeeaeees 53 Voltage Measurements in PowerSight ccceeceeseeeeeeeeesteeeeeeteees 54 Voltage Measurements in PSM cccceeececeeeeeeeeeeeeeeseeeeseaeeeeneeeeaes 55 Current Measurements cccccccecsecceceesneeeeessneeeeesseeeeesseeeeeeseeeenees 56 Current Measurements in PowerSight cccsccceeeeseeeeeeseeeeeneeteees 58 Current Measurements in PSM cccccccseccecesseeeeeessneeeeesseeeeeessteeeenees 59 Imbalance Measurements cccccceceeceececeeeeeeeeeeaeeeeeeeeeseeseneeeeeeees 60 Imbalance Measurements in PSM
16. More More Curr More More More More Curr w More Imax More Imin tMore Iyavg Curr A Cares er RUT oe eT ef erage re cha User Interface for Current Measurements For instance if the average current of Phase 3 is desired press Current to display l1 Current to display 12 Current to 58 display l3 More to display maximum l3 More to display minimum l3 and then More to display average 13 Following viewing each of the phases and neutral a summary display of all of the currents can be seen Note that if PowerSight is not monitoring consumption the maximum minimum and average values are the results from the last monitoring session Note that when PowerSight is operating in 2 current mode l2 is not measured or displayed When measuring DC current the RMS value is the same as the DC value To set PowerSight for reading DC currents refer to the section on Setting Measurement Modes Remember that you need to have a DC current probe in order to read DC current The total harmonic distortion THD of currents is displayed using the THD function discussed later in this chapter Current Measurements in PSM The consumption data log can record maximum minimum and average RMS current for each phase for each logging period The summary values at the top of the screen are the maximum minimum and averag
17. PowerSight comes with Ni Cad rechargeable batteries those batteries are intended to keep PowerSight functioning during limited power failures and to allow quick measurements without the bother of always having to find a 120 Vrms source When fully charged the batteries can power the unit for up to 10 hours For longer usage and to recharge the batteries your unit has been supplied with a wall mount power supply This power supply has a barrel type plug and cannot be used with older model PS3000 meters with pin type plugs and the older PS3000 power supply cannot be used with the PS3500 To use this power supply simply plug it into any 120 Vrms source use the model CHG4 charger for 120Vrms and the model CHG1 for 220V and then plug its barrel type plug into the 12 VDC input jack on the right side of PowerSight If charging voltage is available an LED indicating light will immediately shine through the hole located to the right of the input power jack Allow 4 hours to fully charge the unit If you wish to operate PowerSight without being tethered to a power outlet the Line to DC converter accessory order LDC2 or LDC4 offers the ability to power a PS3500 directly off the line voltage being monitored It works with 50 Hz and 60 Hz power operating off 100 to 480 Vrms input single phase or three phase All this versatility is obtained without setting switches or changing connections The LDC is especially convenient when monitoring in areas
18. Remote Control egative Allowed mode and press the key combinations described above Defining Inputs All current probes used by PowerSight are self identifying so they are automatically calibrated to the unit when they are plugged in This is a convenience a time saver and a protection against making errors in measurements There are occasions where the input does not represent what it actually is In these cases the user needs to define the inputs for PowerSight or for PSM The chief need for defining inputs is to enter in input ratios for voltage or current There are several occasions when this is necessary The most common occurs when monitoring a large main circuit to a facility The current may be too large to measure with the current probes you own or you may not be able to physically clamp around the cables or bus bar or the voltage of the bar may exceed the insulation rating of the current probe In these instances a permanently installed CT and or PT may be wired in for a metering system By clamping onto the secondary of such a CT typically with an HA5 probe or attaching directly to the PT with voltage probes you obtain readings proportional to 94 the primary side of the CT or PT Entering the ratios of the CT and or the PT into PowerSight allows all recorded values to be scaled appropriately PowerSight then records primary values although it is connected to the secondary There are other instances where input rati
19. Reversed Phasor Diagram Voltages oV i2 206 0 0023 206V 120 o 31 207V 120 Imbalance 0 212 Currents oll 4704 7 o2 4524 129 013 456A 115 Imbalance 2 309 Vpp I Phase Lag oVi2 11 7 0 23 12 9 0031 13 5 103 signal so its angle is 0 degrees If the phase 1 current lags it it will be slightly above it In a three phase circuit normally the other two phases will be 120 degrees before and after phase 1 and the phase lag of each current relative to its associated voltage will be similar The data graphs on the left of the phasor display show the actual degrees of all voltages and currents in relation to the phase 1 voltage and show the phase angle between the voltage and current of each phase Another convenient analysis feature are the signal selection icons Clicking on these icons allow you to simply cycle through the individual voltages currents or phases The order of presentation PowerSight Manager 5HpMotor wfm Eile Edit Yiew Harmonics Help X a fa ular als e a 5 Hp Motor 208 pp 60Hz o 12 o 23 o y3 RMS Value 206 5 206 4 205 7 Crest Factor 1 5 15 1 5 500 0 400 0 300 0 200 0 100 0 0 0 Voltage volts as you click on the icon is phase 1 phase 2 phase 3 and then phases 1 2 amp 3 together Sometimes current probes are attached backwards and the resulting waveforms are 180 degrees phase shifted There is
20. Vn jack can jeopardize your safety the functioning of the unit and the accuracy of the unit 12 Current probes plug into the top end of PowerSight just above the voltage inputs Each current probe is labeled l1 12 13 or IN and each jack is similarly labeled l1 l2 13 or IN When plugging a current probe into PowerSight the flat side of the plug should be facing upwards so the label is readable This will align it properly for plugging into the PowerSight case Clamp on probes have a correct orientation in which to attach them On most probes head there will be an arrow pointing in the direction of the conductor being measured When clamped onto l1 12 13 or IN the arrow should point along the conductor from the power source towards the load If the current probe is connected backwards its waveform will appear upside down when you upload waveforms it may be slightly less accurate in its current readings and most importantly if you operate in positive negative power measurement mode power readings will be disastrously wrong 13 Introduction to Power Delivery Configurations Figure 1 presents most common power ee et vy v V N V 1 delivery n en 2 i ingle Phase configurations Split Phase PowerSight is able to V VN measure voltage V2 current power power factor and more for V Bytes Prage Four Wire Wye all of these systems C ANA A 2 Figure 1A presents Three Wire Delta the normal singl
21. While monitoring is suspended pressing Spike causes the summary display to appear This states how many transients exceeded the threshold that you set when monitoring began Pressing More repeatedly displays information about the worst transient that was detected The worst transient is defined to be the one with the largest magnitude Pressing More the first time displays the peak magnitude of the worst transient Pressing More again displays the duration of the transient in microseconds usecs Pressing More again displays the rise time of the transient in microseconds Pressing More one 122 more time displays the time of day that the transient occurred The date that it occurred flashes on the screen every few seconds When you wish to resume monitoring press Monitoring On Off PowerSight will ask if you wish to resume monitoring Press Yes Accept and the disturbance summary is displayed and the exclamation marks resume flashing Any new transients are added to the old total and are compared to the previous worst transient If you wish to end monitoring after it has been suspended press Monitoring On Off whereupon it asks if you wish to resume monitoring Press No Reject whereupon it asks if you wish to stop monitoring of disturbances Press Yes Accept This causes the exclamation marks to disappear and allows a new disturbance summary to be created the next time you begin monitoring disturbances
22. amp viewing all ee voltage mu i Ru i we Phs1 _Phs2 Phs3 waveforms of a three phase system notice in what order they reach their peak value Normally the order should be 1 2 3 In other words the highest level of the Vin or V12 waveform will be followed next by the highest level of the Van or V23 waveform which will be followed by the highest level of the V3n or V31 waveform see the example 49 1 2 3 Sequence 07 2 Paw An order of 2 3 1 twee RAF or 3 1 2 is the e a em Dwe Re eD wl EE o Motor Revered o w om Tonal same as an 1 2 3 ee Be Sie i sequence the reference point just starts at a different place 1 2 3 Sequence for instance 2 3 i 1 is just a portion i ol of the continuing ml sequence of 1 2 ia 3 1 2 3 wia Sometimes an Mge 50 we is ma ao we ne n o soe order of 3 2 1is Lo o o o o lt e PR correct Some utilities deliver power in that sequence and sometimes a motor will be connected in that manner to make it spin backwards An order of 2 1 3 or 1 3 2 is the same as 3 2 1 the reference point just starts in a different place for instance 2 1 3 is a portion of the continuing sequence of 3 2 1 3 2 1 Checking Current Levels Using PSM Next click on the blue Back Arrow icon and select Current Set All and View Now that you are viewing the current waveforms there are several
23. and that the system type was identified correctly Two inputs are the same It appears that the identified probes are connected to the same signal Check the connections and that the system is correct 46 Two inputs have the same phase angle The identified probes are of the same phase but have different magnitudes Check that the system is correct Non standard phase angle The phase angle between the identified phases is incorrect for the identified system Check the system Incorrect phase lag The phase lag of the identified phase is not correct The probe may be backwards or the voltage or current is connected to the wrong phase Wrong phase sequence It is assumed that a sequence of 1 2 3 is correct and 3 2 1 is backwards But 3 2 1 may be correct for your system for instance to have a motor run backwards If the sequence is wrong either two voltage leads are switched or 2 current probes are switched while no voltage is present Non Standard voltage The voltage levels are outside of normal operation range of normal power systems It may be correct or there may be a problem with the system or the wrong system has been identified No signals detected The operating frequency may be out of the measurement range of PowerSight or nothing is connected or the system is deactivated Wrong frequency setting PowerSight is expecting one frequency but it is measuring another The display of this error tells the frequency
24. be asked to select For Use With PSM 33 Serial Comm enabled what data you wish to use via the Browse button Click on the drive number assigned by your computer to your card reader and locate the data of interest 4 Browse the card to find the risi data you want to receive as The data is organized in the following hierarchy of folders Serial Number this folder is in the root directory of your card Its name is the serial number of the meter that the data came from If the card has only been used with one meter there will be only one of these folders If the card has been inserted into many meters there will be many of these folders Monitoring Date Time this folder is created whenever the meter starts monitoring It is located in the Serial Number folder If the meter has had many monitoring sessions there will be many Monitoring Data Time folders each with its own unique name The format of the name is YYMMDDhhmmss YY is the year MM is the month DD is the day hh is the hour mm is the minute and ss is the second that monitoring began This format allows sessions to be listed in order that they were created Dala Dedinaion Hep The raw SD card files are in a condensed format that PSM must convert into a normal file type The default filename to be created is psm with the appropriate file extension such as psm log for a data log You ca
25. chosen and the average frequency is 48 0 Hz during the first interval and 47 8 Hz during the second interval then the report would show Before After Units Change Change Frequency Avg Duty Cycle Power Cycle Measurements Some electric loads such as air conditioning units typically turn on and off routinely It can be helpful to know how often the equipment is running and how often it turns on and off Relevant measurements of this type are Duty cycle Average On time Average Off time Elapsed power Cycles Estimated power cycles per hour Estimated power cycles per day Estimated power cycles per week Duty cycle measured in percent is what portion of the time a unit is turned on The average on time is the average length of time that the unit stays on The average off time is the average length of time that the unit stays off These measurements can be helpful for spotting defective equipment or equipment that is not sized properly for the job A power cycle occurs each time an on to off to on sequence occurs The elapsed power cycles measure is how many power cycles have occurred since monitoring began Based on how many have occurred estimates can be prepared for how many cycles occur per hour per day or per week These measures can be helpful in determining problems with control of a system such as thermostat problems 78 Duty Cycle Power C
26. comparisons it is best to have identical vertical scales otherwise a small after number may appear to be larger than the before number You can control the vertical and horizontal scales by clicking on View and then Set Scale str 22 2 EE gt C Jiii Normally the color of the signals Ea ee is set automatically by PSM to Labels give good color contrast on a color monitor However that contrast may not stand out on Wavyetorr Harmonic Graph Harmonic Data your monitor or on your color eels printer or especially with your black and white printer You can control the colors used to display signals by clicking on View and then Change Color Scheme View Table Data 139 Whatever is displayed can be printed by clicking on File and then Print It can also be saved as a Windows bitmap file by clicking on File and then Save as BMP A very handy feature is the Powersight Manager SHpMotor wim File Edit Yiew Harmonics Help Redo icon Whenever it is e a em Daa ale visible clicking on it give you fresh data to look at If you are u ee Te viewing the waveforms of the z attached signals and you click on this another set of waveforms will immediately be captured assigned a new file name and displayed Similarly if you have the high frequency spectrum analyzer option FAO and you click on the icon a new spectrum analysis wi
27. ele 2 2 a Gale 2 both the Sarl voltage and Voltages E current of a veya waveform set To view the imbalance measurement oe opena oa AnA 129 waveform set in PSM and then click on the phasor diagram icon raga The imbalance VLB gt measurements appear to the left of the phasor diagram Power Measurements There are three basic interrelated measurements of power True power Apparent power Reactive power Apparent power is defined as the sum of the products of the RMS currents and their associated RMS voltages Ppp ZVA Vix xT J Vay xf J Vay ee app In other words if you measure the RMS voltage measured in volts and the RMS current measured in amps and multiply them together you get the apparent power measured in VA 6l True power is more complicated It is defined as the average of the sum of the products of the instantaneous currents and their associated instantaneous voltages over one or more cycles Pp Wars Dw xt Doan Xb DUM x4 true N N N True power equals apparent power when there is no phase lag in the load and no harmonics are present otherwise it is less than the apparent power This is why an ammeter cannot be used to accurately measure true power in most industrial circuits Reactive power is the square root of the difference between the squares of the apparent power and the true power P _ VAR P_ P_ var ap true When the fundamental vo
28. from 170V to 170V if it is a perfect sine wave If you set an absolute threshold of 200V if the voltage ever exceeds either 200V or 200V a trigger will occur This means a spike of 30V at the normal peak voltage would cause a trigger whereas a spike of 200V would be required to cause a trigger when at the zero crossing point of the sine wave Similarly ina 120Vrms system if you set the trigger level for 160V a trigger will occur twice each cycle since the normal sine wave exceeds this level during each half cycle Once triggering has occurred the waveform is measured in 16usec increments You can monitor any of the 3 input voltages or on any of the 4 current inputs Only one signal can be monitored at a time Whenever a transient trigger occurs the event is noted and if it is the worst transient since monitoring began its statistics are noted Transients are accumulated not logged during disturbance monitoring This means that they are counted as they occur up to 999 Only the pertinent information about the largest transient is kept all others are simply counted None of the transient measurement information can be transferred to your PC using PSM It must be copied off the display 121 Monitoring Disturbances To begin monitoring disturbances press the Monitoring On Off key and follow the directions that are displayed For instance to start monitoring transients on Van first press Monitoring On Off an
29. from the beginning of the data logging session and may not be back to get the data before the log fills up Another mode is to select Stop at time If this is selected then a box opens that you can Log Stop Mode Don t stop enter a date and time for Don t stop the logging to end This is helpful if you want logging to end at a specific time or if you want it to end after a specific number of minutes hours days or whatever The option of Don t Stop allows logging to continue even after the log is completely full New data will be written over the oldest data This allows you to leave a unit logging continually and always have the most recent data available for analysis 114 Setting the Consumption Logging Period One of the most important settings is the choice of logging period This is the length of time between the creation of data records This has no effect on the measurement rate or the sampling rate Unlike inexpensive data loggers that only take measurements when a record is created PowerSight measures all its variables every second regardless of the recording rate This is very important when logging power since loads typically vary greatly and quickly The default setting for logging period is 3 minutes This means that after 180 measurements 180 seconds are in 3 minutes a record is made containing all the measurement types specified by the setup If maximum power is one of the measureme
30. input or 600 5 000 Vrms with 5KVP probes or 600 15 000 Vrms with 15KVP probes Accuracy 0 5 of reading 0 2 Vrms below 400V 2 Vrms above 400V Measure Rate Once per second for each input Frequency Response No de rating of accuracy for harmonics through 1500 Hz Current Input Range 0 01 5000 Amps AC or DC with the proper current probe attached With HA5 0 02 5 Amps With HA100 0 1 100 Amps With HA1000 1 1000 Amps With eFX3000 1 6000 Amps in two ranges with auto ranging With DC600 5 600 Amps DC Display Range ima 6 megamps using input ratios Accuracy 0 5 of reading plus accuracy of probe 154 Measure Rate Once per second for each input Frequency Response dependent on current probe attached With HA1000 no de rating of accuracy for harmonics through 3900 Hz Frequency Range DC 45 66 Hz 360 440 Hz fundamental frequency DC and 45 1650 Hz included in RMS 45 3300 Hz for harmonic measurements Accuracy 0 5 Power Energy Cost Power Factor Display Range 1 watt 60 megawatts using input ratios Accuracy 1 0 plus accuracy of current probe Measure Rate Once per second for each phase Harmonic Distortion Range Display of THD and individual harmonics through 25th 1800 Hz of all signals With PowerSight Manager software display of harmonics through 63rd 3900 Hz Accuracy To within 1 of fundamental Transient Detection Resolution of Duration 16 usec Measurabl
31. is backwards that current will appear upside down 180 degrees out of phase More importantly if PowerSight is in the Positive Negative Power measurement mode a backwards current probe will have a disastrous effect on the power KWH and cost readings typically the display will present 1 3 of the correct value Voltages and currents of the same phase not paired together If the V1 voltage probe is connected to the phase 1 voltage but the l current probe is attached to the phase 2 or phase 3 current large errors will occur in measurement of power and power factor For instance in a perfectly balanced three phase system with 0 92 power factor and no harmonics if the connections of the l and l3 probes are switched the true 42 power will fall 33 and the power factor of each phase will become 12 92 and 80 Current probe not fully connected to PowerSight The current probe connector needs to be fully seated within its socket If it is not the reading may be 0 resulting in a loss of about 1 3 of the power of a three phase system the probe may be misidentified resulting in current readings of a fraction or a multiple of the correct value or the display may say l1 input too large and PowerSight will refuse respond to any keypad button Voltages not connected If one or more of the voltage probes is not connected properly test results for voltage power and power factor will be very inaccurate Typically power
32. jacks at one end and safety plunger clamps or jumbo alligator clips at the other end Each is labeled at both ends as the V1 V2 V3 or VN test lead Once they are securely connected the deluxe voltage leads are safe for steady voltages of the 600 Vrms rating of PowerSight The clamps of the deluxe voltage leads are rated for 1000V working voltage measurement category III This is equivalent to measurement category IV for a working voltage of 600V the rating of the PS3500 A To avoid unnecessary risk of shock only use the voltage leads and clips supplied with your meter and whenever possible deactivate live circuits or wear the proper PPE personal protection equipment before gaining access to live circuits A Another word of caution Whenever connecting to a live circuit remember that the jaws of a voltage test lead are much wider when they are open than when they are closed The potential to short or flash across two adjacent terminals or wires is a constant danger when connecting to a live circuit Depending on the current capacity of the circuit being shorted arc flash and a deadly explosion of molten material can result Summit Technology also sells a fused voltage lead set order DFV The safety advantage of fused leads is that if a short occurs through the insulation of a lead to ground the fuse in the handle should quickly blow out preventing the lead from vaporizing in an explosion of molten metal The safety 9 dis
33. keypad of the meter using Yes when done Setting Measurement Types In addition to the measurement types listed in the default data log the following measurement types can be included in each record of a custom data log average true power of all phases combined maximum true power of all phases combined minimum true power of all phases combined average apparent power of all phases combined maximum apparent power of all phases combined minimum apparent power of all phases combined average true power factor of all phases combined maximum true power factor of all phases combined minimum true power factor of all phases combined THD of voltage in phase 1 THD of voltage in phase 2 THD of voltage in phase 3 THD of current in phase 1 THD of current in phase 2 THD of current in phase 3 THD of current in neutral To inspect or change the measurement Monitoring Activities types look to the Storage section of ansumption the Data Setup menu and click on the Detail button below the Log of C Detail Consumption line 116 Selecting which measurement types to add or remove from the log setup is as simple as clicking on the box next to the measurement type In the illustration shown you can see that the average power factor of phase 3 is selected because there is a checkmark Log Details Log Capacity Extended Time 30 902 days Records 14833 Select Measurement Set All Clear
34. mode PowerSight senses this and automatically turns the current 92 probe backwards in software so that all phases measure positive power This automatic correction is provided to assist our customers allowing them to concentrate on readings rather than connections under most circumstances Accuracy may be slightly better when the probe is oriented correctly but for most measurements this added accuracy is of no significance with PowerSight If current and power readings of the highest accuracy are necessary use the Checkout Connections feature that is discussed earlier in this manual or view the waveforms in order to ensure that current probes are connected correctly If you need to monitor equipment that alternately consumes and generates power you need to select the Negative Power Allowed measurement mode In this mode positive and negative power readings for each phase are accepted and are combined to find the net power usage Depending on the result positive or negative power energy and cost results may be displayed When negative power measurements are allowed it is necessary to have all current probes connected properly Use the Checkout Connections feature or view all the waveforms before taking measurements Failure to do so will typically result in power readings 1 3 of the correct value The 2 Current Probe mode also known as 2 wattmeter mode is a method of calculating total power using only 2 current probes and 2 phase
35. mode that PowerSight is set for and then displays the actual frequency that is measured Use PSM to set the frequency mode to the correct setting 47 Checking out Connections using PSM The PowerSight Manager PSM software is included in the cost of your PowerSight meter You can use it to visually determine if the system connections and levels are correct Use PowerSight s patented SureStart feature for a fast reliable approach to checking that connections and settings are correct Checking Voltage Levels Using PSM As an alternative to using SureStart you can capture a waveset a set of 7 time coincident waveforms and analyze it graphically Refer to the Saving Consumption Waveforms section if you do not know how to capture waveforms with the meter Select Signals to iew J Once a waveform has re been captured ee 22 Cancel at the main menu 7 73 Ext click on Receive Waveform then Receive and View A waveset will be transferred from PowerSight to PSM and then a dialogue box opens asking you to choose what signals to view Make your primary choice Voltage and your secondary choice Set All Next click on View Now that you are m File Edit Yiew Harmonics Help von e voleoe bist sis daea aala i Teel several questions that vail a need to be answered Sea First of all is the voltage l measurement mode Bi correct Ifthe soo 0 measurement mode is phase neutral all me
36. of the three phase circuit The disadvantage of this approach is that you cannot determine the power power factor or VA of each individual phase and of course you cannot record the current of one of the active phases A necessary use for this type of connection is to measure utility power where only two metering CTs and three PTs are provided After hooking up to the CTs and PTs you enter the input ratios into PowerSight see the Setting Inout Ratios section in order to record the correct values the values on the primary side of the transformers A different motivation for using this type of connection is to save time and money By only connecting to 2 of the 3 currents a small amount of time can be saved The frugal user appreciates 23 this approach because he can save the cost of one current probe when buying a system in order to measure total power Another motivation occurs in situations where one of the phases cannot be measured due to accessibility This approach is also called the 2 wattmeter approach because it mimics how two single phase wattmeters can be used to measure total three phase power The equation that it depends on is W otal VW xI SG xJ This equation is true regardless of the harmonic content of the voltages and currents present A few words of caution are required however First a volt ohmmeter cannot be used for this calculation That is because the equation depends on the instantan
37. or PEE peration Setup change the input ratios wea Period 3 ws as using PSM go to the yao hie aa a hl Data Setup menu and Log Stop Mode Don t stop x click on Define input Input Frequency Variable 20 70Hz 7 ratios and names Voltage Mode PhaseNeutal 7 This leads to the Power Mode presentation of the Input Configuration summary display For each input to PowerSight there is a line listing the name of the signal the input ratio of the signal and a brief description of the signal If you wish to change any of these parameters double Define input ratios and names j click on the line you wish to change and make the change Be sure to click OK when you are done and save the data setup to a file and or to PowerSight As an example suppose you wish to record the primary of a permanently installed CT while clamped onto the secondary with your l current probe Get to the Input Configuration screen and double click on the l4 row If the ratio of the CT is 600 Change any parameter 5 simply enter Type cunent 7 pez 600 in the first column and 5 in the second column Description of Input Ratio If the ratio also applies to other inputs enter them at this time too Click on OK when done primary secondary Note Once it is entered an input ratio is kept for the specified inputs until you change the ratio again The default ratios for Power
38. peak voltage Vpk is the instantaneous voltage of the greatest magnitude either positive or negative over a period of time A measure that changes continuously is of limited use A far more useful measurement is RMS voltage wherein a single number is generated to describe a continuously varying voltage The beauty of RMS voltage is that in power calculations it makes a contribution to power roughly equivalent to a DC voltage of the same magnitude RMS voltage is defined as the square root of 53 the mean of the square of the instantaneous voltage over one 2 F cycle of the fundamental frequency Vrms 2 When measuring DC volts the RMS value is the same as the DC value Voltage crest factor is the ratio of peak voltage of a cycle over the RMS voltage of the same cycle Vcf Vpk Vrms A perfect sine wave has a crest factor of 1 414 v2 In the PS3500 the present voltage is the RMS voltage calculated for the most recent second Maximum minimum and average are based on these one second measurements Voltage Measurements in PowerSight PowerSight performs all commonly desired voltage measurements When in phase neutral measurement mode the RMS root mean square voltage between VN and the V1 V2 and V3 input jacks is displayed by simply pressing Volt repeatedly The sequence of the display as Volt is pressed is Vin gt V2n gt V3n In the phase phase measurement mode V12 V23 and V31 are displayed instead
39. selected variables from the default the Data Setup feature of PSM must be used see Setting Measurement Types The log setup does not change when the unit is turned off The default setup can be recovered at any time refer to the Restoring the Default Setup section With the default setup the log will contain 4569 records Coupled with the default 3 minute log interval the default data log will hold summary data for the last 9 5 days of energy consumption 3 minutes x 4569 If 15 minute log intervals are used the data log will hold the summary data for the last 47 3 days of logging If logging continues long enough to fill the data log the default is for each new record to be written over the oldest record of the log In this way you could leave a unit logging unattended for months and always have the most recent data available for analysis To have logging stop when the log is full or to set a programmed start or stop time refer to the Custom Consumption Data Logging chapter 109 Receiving Consumption Data Log from PowerSight To receive a consumption data log from PowerSight the PowerSight unit must be connected to a computer running PSM At the main menu of PSM the green Unit Connected Status box must be displayed At the Main Menu you can either click on the Receive Data button or on PowerSight Manas the Data dropdown button Ee Sats Werf Bae and then Receive Data In either ca
40. the heading and the time and date stamp at that point and the record number are presented at the upper right within parentheses 141 HARK AX KAA aN WW Zooming and Panning Perhaps the most powerful tool of graphical analysis is zooming This feature allows you to expand an area of interest of a graph or waveform so that it fills the screen It also allows you to trim off areas that you don t want displayed for instance you may only want one week of a 30 day log displayed for printing There are multiple ways to zoom in on an area of interest The easiest is to position your cursor at the upper left corner of the area you wish to expand and then left click and hold down and drag the cursor to the lower right As you drag the cursor a box will appear on the screen and it will grow as you move the curson down and to the right When you release the mouse s left button the area that was within the screen will expand to fill the screen Other ways to zoom in are to click on the zoom in icon a magnifier with a on it or to click on View and then Zoom In or to type on the keyboard and then do the same click hold and drag operation that was previously described To zoom out you can click on the ZoomOut icon the magnifier with a on it or you can right click and click on Zoom Out or you can click on View and then Zoom Out The examples below are of a log of true powe
41. 23 9524 9124 9124 9124 9824 9824 9725 To learn ways to manipulate interpret and present the data for better data analysis or improved presentation refer to the chapter on Working with Graphs and Wavefoms Deleting Log Data in the Meter The data in the data log resides in long term battery backed up memory in the meter so it is not lost when the meter is turned off or even if the rechargeable ni cad battery runs down If an SD card is inserted the data log is also automatically transferred to the SD card If logging continues long enough to fill up the internal memory of the meter it may be written over unless logging is set to stop when full However if an SD card is inserted during logging data will continue to be appended to the file on the SD card as the data in the meter is written over This means that the most recent data is always available in the meter and if an SD card was inserted during logging all the data is available on the SD card When a new monitoring session is initiated you have the option of having the new session data appended to the old log or to replace the old log If you choose to replace the old log that data inside the meter is lost forever However if an SD card was inserted prior to starting the new session the old log is still available on the SD card There may be times that you wish to erase all data in the meter This can be accomplished by pressing the Setup key repeatedly until the option
42. All Measurements Measurements Set All Clear All InRow In Row Total or Neutral Phase 1 Phase 2 Phase 3 Set Clear Set Clear Set Clear ve Max Min All All Ave Max Min Al All amp ve Max Min All All Brody erry O00 O00 O00 Oo Oo no Set Clear Ave Max Min Al All gt Set All Clear All Ave ve Voltage Current True Power VA Power Power Factor THD Voltage THD Current Frequency Time Date V Seal SIO Cerai HAH of v Vv F m F O r Set All Clear All Ma ax r Set All Clear AII Min E in 77400407 2 a B BEEP in the box that is highlighted in its row and column position As measurement types are added or removed the capacity of the log is affected If fewer variables are saved then each log record is smaller and thus more records can be stored in the log which means that it will take that much longer to fill the log In the example shown there is a capacity of 14 833 records in the log which combined with the logging period of 3 minutes will take 30 9 days to fill up To make quick changes to the measurement types you can use any of the many speed editing boxes that allow setting or clearing all in a column or in a row or of a type When done modifying the measurement types be sure to click OK and then save the new setup to file and or send it to the connected PowerSight Setting Measurement Modes The measurement modes and how to check and modify them 117 have a
43. Current Neutral Min i amps H 00 Total True Power 9 Watts 1 2 VA Total VA Power 0 9 Power Factor Phase 1 Ave A i 0 1 Power Factor Phase 2 Ave 0 04 Power Factor Phase 3 Ave i l 0 9 Energy Total Elapsed 242 992 240 129 12 48 60 48 03 ae 1481 27 1461 78 19 49 C13 Report Prepared By Ken Rose Miles Engineering 1676 140th Ave Twin Falls ID 95616 926 944 1212 sales bjwl com Following the main body of the report is the information about how to contact the preparer of the report for follow up The pages after this have the graphs for the measurement types during the study period If it is a comparison report they are presented with the before graph followed by the after graph 127 Other Functions of PowerSight Calibrating PowerSight PowerSight is calibrated at the factory and automatically adjusts itself every second during normal use However in order to ensure that the meter continues to meet its specifications provision has been made for you to quickly recalibrate it yourself In order to calibrate the meter you need access to highly accurate 240 0V 200 0A and a highly accurate HA1000 current probe To calibrate voltage for a PS3500 press Input Ratios several times to get to the display Calibrate Voltage Then press Yes Accept Attach the highly accurate 240 0Vrms to Vin and press Yes Acceptl To calibrate current for a PS3500 press Input Ratios
44. Magar aaaad Seal Con enabled Data Type lines These files are the stored waveform sets stored in the PowerSight Make sure that the box at the start of the line is checked Receive Data and then click Data Types to Receive Data Destination a i n Receive pe e eee and View to IZ High Speed Transients Cancel transfer the ee Heb Select All Select None waveform coi se to your Tie o eee a PE DonPee 27 computer AETA TA BeelDpRMS Gaeh 0 emda ar The default ee BRA a name of the Bas file is psm01 wfm Remember that waveset1 is special It is an automatic recording of the waveforms at the time that monitoring last began 100 Viewing Consumption Waveforms To select a waveform set to view at the main menu click on View Consumption Data or click on View and then View Consumption Data or click on File and then View Consumption Data Any of these approaches will result in the View PowerSight Manager PowerSight Manager Version 3 1T Jun 5 2004 Ef Data setup PS40000 Setup Communications Serial Number 41356 p Receive or View Data Pi l Unt 65 E2 receve naa fara 620 Warranty Ends 05 25 05 P View Consumption For Use With PSM 3 1 iS al Data i Serial Comm enabled Datalogging enabled 3 i Harmonics enabled View Swell Dip Data Maver Enero ETE View Transient Data Consumption Data sc
45. PTs take a primary voltage and step it down to a secondary value If the primary voltage is below 600Vrms you will not need to hook up to the PTs in fact there will probably be none present The ratio of the stepping down of the voltage will be printed on the rating plate of the PT Typically this would be 2400 120 20 1 As with the CTs this ratio should be entered into PowerSight see the Setting Inout Ratios section to simplify interpreting the results 26 Connections To a 2 CT 2 PT Metering Circuit Figure 10 shows recommended connections to a metering circuit Phase1 CT with only 2 CTs or 2 PTs This type of metering circuit may be preferable when cost is an issue less instrument transformers are used or when metering a delta service with no reference to PowerSight neutral The discussion of the previous section Connections To a3Gl 3PT Metering Circuit applies to this circuit as well with one important exception If you clamp onto Fig 10 Recommended Connections to the CTs rather 2 CT 2 PT Metering Circuit than clamping onto each of the primary currents directly PowerSight must be operating in the 2 Current Probe mode of operation see the Phase Neutral vs Phase Phase vs 2 Current Mode section Connections To an Open Delta 3CT 2PT Metering Circuit In the open delta configuration two PTs and 3 CTs are available Make the voltage connections as shown in figure 10 of the 27 Connecti
46. Power Maximums Minimums Averages More More More More AACA ie wie Ore TT w wa wa Wf MO lw we Wa wf Moret l Power VA Power Maximums Minimums Averages EA More A More VA VAVA VAq More VA VAVASVAq More l Power User Interface for Power Measurements Power Measurements in PSM The consumption data log can record maximum minimum and average true power and apparent power for each phase for each logging period In addition is can record the maximum minimum and average true or apparent total power When graphed the VAR can be displayed The summary values at the top of the screen are the maximum minimum and average of all the values shown on the screen When viewing consumption waveforms the average true power of the cycles of the waveforms are shown at the top right if both voltage and current were recorded If all phases are displayed only the total true power is displayed at the top right If a harmonic analysis of a phase is displayed the true power of that phase is also displayed If trending data is being recorded and in phase phase voltage measurement mode the average true power and average 63 apparent power of each phase will be displayed and recorded If in phase phase voltage measurement mode the total true power and total apparent power will be displayed and recorded The measurements of power presented on PowerSight can also be disp
47. Remote Control mode and press the key combinations described above To change the voltage measurement mode Voltage Mode Phase Neutral 7 using PSM either go to Phase Neutral Phase Phase the Data Setup menu 12 32 onl click on the Voltage Mode drop down box select the mode that you wish to operate in and then send the new setup to the connected PowerSight meter or operate in Remote Control mode and press the key combinations described above 89 50 60 400Hz vs DC vs Variable Frequency There are 5 frequency measurement modes in the PS3500 Fixed 50 Hz and DC Fixed 60 Hz and DC Fixed 400 Hz and DC Variable Frequency from 45 66 Hz Variable Frequency from 360 440 Hz These modes allow making measurements on virtually any power system in the world When making measurements on a power source whose frequency is stable as are most power grids in industrial countries it is recommended that you operate in either Fixed 50 Hz or Fixed 60 Hz mode depending on the frequency present If you are making measurements on a military or avionics system whose 400 Hz is stable it is recommended that you operate in Fixed 400 Hz mode If you are making measurements on a DC system then you may choose either Fixed 50 Fixed 60 or Fixed 400 Hz mode When making measurements on a system whose frequency may vary such as a generator or variable frequency drive operate in either 45 66 Hz Variable Frequency or 360 440 Hz
48. SM will graph the energy consumed over any interval The user can choose to graph real energy use KWH or reactive energy use KVARH Normally a graph of energy usage will be a line that climbs up as it moves to the right This is because as more and more power is used the cumulative energy used increases In addition our Report Generator software will calculate actual energy used and the estimated energy used pr month during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change in energy use between the two intervals For instance if a comparison report is chosen and 5 KWH is consumed during the first interval of 10 minutes and 8 KWH is consumed during the second interval of 20 minutes then the report would show etre ane Untlehang change Energy Total Elapsed KWH 60 0 Energy Estimated per month 21 900 17 520 KWH 4380 20 0 In this example even though the actual energy increased significantly the actual rate of energy use declined significantly because of the difference in time intervals between the before and after tests Cost Measurements The cost of energy consumed is defined as the product of the energy consumed times the user defined rate KWH x rate PowerSight presently uses a simple single rate price system 72 Useful measurements and estimates of cost are Cost of energy consumed elapsed cost Est
49. Sight are set to 1 1 97 Voltage amp Current Waveforms Introduction Waveforms are very different from logs and other graphs A waveform is the most basic direct measurement It displays the instantaneous levels of voltage and current as they continually vary aS you see on an oscilloscope All other measurements are derived from them Even the RMS measurements of voltage and current are derived from these basic samples Logs on the other hand plot measurements that are derived from the basic sampling They generally have no relation to what is occurring at a specific instant of time So although both waveforms and logs are presented graphically they are not the same and are not treated the same in analysis If you could zoom into a data log of Vrms you might be able to zoom in further and further until you arrive at the measurement of Vrms representing one cycle of voltage However you would not eventually see a waveform of voltage Saving Consumption Waveforms PowerSight allows you to store sets of waveforms whenever you wish to These waveforms may be uploaded and displayed on your PC at any time Consumption waveforms are captured by the action of the user Triggered waveforms are automatically captured due to some characteristic of the waveform Triggered waveforms are discussed in later sections Whenever a set of consumption waveforms is manually recorded by PowerSight all 3 voltages and all four 4 currents are recorded f
50. User s Manual for PowerSight PS3500 Summit Technology Inc Walnut Creek CA 94597 Tel 1 925 944 1212 Fax 1 925 944 7126 support powersight com http Awww powersight com Rev for FW 4 43 SW 3 4H Copyright 2012 by Summit Technology PowerSight is a registered trademark of Summit Technology Inc The PowerSight model PS3500 is designed to comply with part 15 subpart B of the FCC Rules for a Class A digital device Model PS3500 is designed to comply with the requirements of IEC61010 1 2001 for a 600V input rating measurement category IV pollution degree II double insulated electronic device Model PS3500 is manufactured by Summit Technology Inc in the U S A The standard warranty period is 12 months from date of purchase We encourage you to advise us of any defects of design or manufacture of any of our products We are dedicated to your successful use of the product A There are no user serviceable parts in your PowerSight meter Opening the case voids your warranty and may result in present or future danger to users of the meter The rechargeable battery inside is a custom designed battery pack that is only to be replaced by authorized Summit Technology technical service personnel A Cleaning is to be done by use of a dry or damp piece of cloth Grease may be removed by light application of isopropyl rubbing alcohol Avoid the use of solvents since they may dissolve or weaken the plastic enclosure Do not use w
51. Variable Frequency mode When operating in variable frequency measurement mode PowerSight determines the fundamental frequency of the voltage or current that is attached to it every second The fundamental frequency is recorded and is used to determine the true RMS values of all voltages and currents This mode of measurement is only recommended if performing measurements on a system powered by or backed up by a generator or other system whose frequency may vary from standard measurements of the output of a variable frequency drive measurements of a system powered by a utility that does not provide power at a stable standard frequency The variable frequency measurement mode provides accurate true RMS readings of voltage current and power for input frequencies varying from 45 to 66 Hz or from 360 to 440 Hz If even one voltage or current input is in this frequency range PowerSight can also measure the true RMS of DC and rectified signals that are also connected while in this measurement mode 90 It is generally recommended that you operate in one of the fixed frequency modes whenever you can One reason is that there is the potential of slight errors in measuring the frequency of certain waveforms A slight error in frequency will add a slight error in the measurement of all other variables Another reason is if you are measuring small voltages or currents they may not be large enough for an accurate frequency measurem
52. a convenient way of correcting this error Any waveform can be inverted by clicking on View on the command bar then Invert Signals then by clicking on the signals you wish to invert then 104 Invert Signal s If you x save the waveform file the change becomes z Invert Signals permanent 105 Monitoring Power Consumption Introduction When PowerSight is first turned on it operates like a reporter describing what it sees New measurements are generated each second that replace old measurements Old measurements are discarded These are the present values that are displayed as you press various keys When PowerSight is instructed to begin monitoring consumption it not only reports what it sees the present values it also generates summary information about the entire monitoring session and about each logging period Summary information includes maximum values during the session and logging period minimum values during the session and logging period average values during the session and logging period These summary statistics are of great value to you as you ask questions such as What is the minimum voltage What is the maximum current How much does it cost to run this equipment What is the average load When is my peak demand period The PS3500 measures most basic measurement types Such as voltage current power power factor and THD once each second The present va
53. advantage of fused leads occurs when the fuse is blown or is removed The user will measure 0 volts on a live circuit and may be tempted to lower his safety awareness possibly resulting in shock or damage The DFV probes are rated for 1000V measurement category III which is equivalent to measurement category IV for a working voltage of 600V the rating of the PS3500 Current Probes Summit Technology provides a variety of probes for your use They offer different measurement ranges different sizes and physical characteristics and the ability to measure different types of current Probes such as the HA1000 are excellent choices to use with PowerSight because they support all the accuracy specifications of the product For instance the HA1000 has an accuracy of 0 5 whereas many probes on the market have an accuracy of 2 3 Also the HA1000 maintains its accuracy for frequencies up to 20 000 Hz With our spectrum analyzer option order FAO it can be used to measure frequencies up to 100 000 Hz riding on the power line This allows accurate current and power readings of distorted waveforms accurate readings of harmonics and the measurement of current transients that other probes would not even detect Phase shift is also an important probe characteristic The HA1000 has less than 1 2 degree of phase shift across the frequency range when measuring currents above 50 amps and just 1 5 degrees at 5 amps This means that instantaneous meas
54. aling with the unusual presence of regenerative power this is the recommended mode to operate in Inputs configured for input ratios of 1 1 Measurement types standard set of 52 variables The default set of measurement types are the maximum the minimum and the average of the following variables voltage from phase 1 to neutral phase neutral mode voltage from phase 2 to neutral phase neutral mode voltage from phase 3 to neutral phase neutral mode voltage from phase 1 to phase 2 phase phase mode voltage from phase 2 to phase 3 phase phase mode voltage from phase 3 to phase 1 phase phase mode current in phase 1 108 current in phase 2 current in phase 3 current in neutral true power in phase 1 true power in phase 2 true power in phase 3 VA power in phase 1 VA power in phase 2 VA power in phase 3 true power factor of phase 1 true power factor of phase 2 true power factor of phase 3 fundamental frequency In addition the time date of each data record is recorded There are more measurement types than the default set of 52 The maximum minimum and average of total true power of total VA power and of total true power factor are not defaults but the average total true power VA and true power factor are derived by PSM from the individual phases when the log is displayed The seven THD measurements three voltage phases plus three current phases plus neutral current are also not defaults To change the
55. and displaying the readings of a unit to many people at one time To enter the remote ae rere control mode of oe E operation click on E EN Remote Control on the main menu An image of the connected unit will on i appear At this point Gimmes Satis FE Vay Fegan Dan you Can activate IR iin individual keys by clicking on them with your mouse or by typing in 132 the character that is underlined in the image for instance type in P to activate the Power key Locating and Installing Software and Firmware A tradition of PowerSight models is that the products continue to improve and as they improve those enhancements and features are made available to users who elect to stay under our enhanced warranty see http www powersight com warranty shtml Our PSM software continues to improve and is available for download via the web The software that resides in PowerSight is called firmware it s not as soft to change as software is but is not as hard as hardware The PS3500 has the ability to have its firmware upgraded via Bluetooth communications with PSM or via the SD card This keeps your meter from getting out of date and saves you the trouble of returning it to the factory for an upgrade To upgrade the firmware you must first get the newer version of firmware from Summit Technology from our web site or via email To upgrade via PSM click on Tools on the main menu o
56. and Vn inputs In any case there needs to be a potential between them of at least 100 Vrms and no more than 500 Vrms from 50 Hz or 60 Hz power 28 The LDC also comes with in V3 or Vy line fuse V4 assemblies plugged into C 2 Fused In Line Lead the stackable plugs These H red assemblies single Phase Delta contain 1000V Vn V4 V2 Vv V2 fuses They provide PowerSight LDC protection if a short should 12V occur in the 12V LDC The two voltage leads that would normally be plugged into PowerSight are plugged into the loose Fig 11 LDC Connection Diagram ends of the in line fuses At this point PowerSight is ready to measure voltages as usual and the LDC is connected in parallel to two of the inputs of PowerSight You may wish to remove the in line fuse assemblies plug your voltage leads directly into the stackable plugs and plug the in line fuse assemblies between the loose ends of the voltage leads and the voltage clips This provides a connection that is electrically equivalent to the normal connection but the fuses are physically as close to the power source as possible The advantage of this approach is that if one of the voltage leads gets shorted to ground perhaps from being cut by a panel door a fuse quickly blows providing added protection Note Do not use the LDC without the in line fuses being co
57. are be the correct explanation An example of this would be 2 errors the first being that 11 and 12 have been switched and the next error is that 13 is backwards Only one of these errors actually exists and the more likely one is that I1 and 12 are switched In these cases fix the error that seems most likely to you to be correct and run SureStart again There are over 70 different error types reported The general types their explanations and the corrective actions required are Probe not connected The probe that is identified appears to not be connected to PowerSight Check that the probe is firmly connected to both PowerSight and to the power system No current The probe that is identified is connected to PowerSight but no current is detected This may indicate that the load is turned off or that the probe is not connected around the cable properly or that it is not fully seated into its jack within PowerSight Probe backwards The current probe that is identified is probably backwards Just turn it around and clamp it on the conductor Probe switched The identified probes seem to be switched Simply trade their connections Signals attached to wrong jack The identified signals seem to be connected to the wrong inputs Connect the probes to the correct signals Signals are imbalanced It appears that the magnitude of one phase is improperly large or small compared to the others Check that the connections are correct
58. asurement labels at the top will be Vin Van and V3n The first letter after the V is the phase 200 0 100 0 Voltage volts 48 that is connected to and the n stands for neutral If no neutral is connected to PowerSight this measurement is in reference to the neutral point between all the phases that are connected If the measurement mode is phase phase as shown in the example the labels will be V12 V23 and V31 V12 is the voltage potential between phases 1 and 2 Changing the measurement mode has a large effect on the size of the voltage readings For instance in a three phase 120 volt phase neutral wye system the voltage measurements in phase phase mode will be 208 volts 120 x 3 Similarly a three phase 480 volt phase phase delta system will display 277 volts 480 43 if it is measured in phase neutral mode How to change the voltage measurement mode is described in the Phase Neutral vs Phase Phase vs 2 Current Mode section Next are the sizes of all three phases about the same except when connected to a 4 wire delta while in phase neutral measurement mode Are they the expected size The RMS value of each waveform is listed in the heading of the graph such as V12 in the example with 469 2 beneath it indicating that V12 469 2 volts Check Voltage Phase Sequence Using PSM F While still aj mal lor 3 gel eag e ec 2 Vj a DaD RJ e OO E T Dla
59. asurement types during each second of the 15 minute period and store these summary values into the data log The logging interval can be set from 1 second to 99 minutes The logging interval has a direct effect on the time it takes to fill the log For example if PowerSight has its consumption log capacity set to 1000 records and its logging interval set to 1 minute it will take 1000 minutes for PowerSight to fill the data log Each record of the log will contain the maximum minimum and average of 60 seconds of measurements 10 How do I use the Data Setup feature of PSM Refer to the chapter on Custom Consumption Data Logging 11 How often should have my PowerSight calibrated We recommend that you have the PowerSight calibrated once every year We also recommend that all voltage and current probes be sent in with the unit for calibration 12 Can I use other manufacturers current probes with PowerSight Unfortunately no Only current probes made by Summit Technology can be used with the PowerSight Products This is because all of our probes are self identifying This means the user does not have to use an input ratio to use the probes If there is a special need to use a certain probe let us know at support SummitTechnology com 13 How do measure voltages above 600 volts AC You must use our High Voltage probes to directly measure above 600 Volts You can use either the 5kVP or the 15kVP Also see How t
60. asurements The total harmonic distortion THD of voltages is displayed using the THD function discussed later in this chapter Voltage Measurements in PSM The consumption data log can record maximum minimum and average RMS voltage for each phase for each logging period The summary values at the top of the screen are the maximum minimum and average of all the values shown on the screen When viewing consumption waveforms the average RMS of the cycles of the waveform is shown at the top with the average crest 55 factor listed below it The instantaneous value of each point of the waveform can be determined using the vertical scale If a harmonic analysis is displayed the RMS voltage is also listed If trending data is being recorded and PowerSight is operating in phase neutral voltage measurement mode the average Vin Van and V3n voltages for each second will be displayed and recorded each second If in phase phase voltage measurement mode the average V12 V23 and V31 voltages for each second will be displayed and recorded each second The measurements of voltage presented on PowerSight can also be displayed in PSM by using the remote control feature In addition our Report Generator software will present maximum minimum and average voltage of each phase during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change between the two inte
61. at the demand was during the peak demand period press Demand to see the time and date of the peak demand period and then More to see the amount of energy consumed during that period Demand Period Measurements in PSM There are two methods for obtaining Demand period measurements in PSM The first is to monitor using 15 minute 75 logging intervals and making sure that total power is being logged in the consumption log When logging is completed graph the consumption log and choose to present total power Observe at what point the average total power is at its peak This point is the peak demand period Put your cursor over it and observe the timestamp of the beginning of the peak demand period at the upper right of the graph To find the peak demand observe the average total power in watts at the point of the peak demand period The more direct method of determining the peak demand and the peak demand period is to run the Report Generator program see Generating a Report and select Peak Demand in the list of variables to report on The report will list the peak demand period the peak average demand in Watts the peak VA demand period and the peak average VA Frequency Measurements Any periodic waveform has a basic rate at which it repeats itself This is the fundamental frequency of the waveform expressed in units of Hertz or cycles second The fundamental repeating waveform is called a cycle and is usually exp
62. at voltage to expect as you change the voltage mode from phase phase to phase neutral There is a third voltage measurement mode that may be active in your unit It is the 2 current mode or the V12 V32 only mode In this mode only two phase phase voltages are used and displayed The 2 current mode actually involves a different method of measuring power and therefore is actually a different power measurement mode but since it is independent of the other power measurement modes and yet is an alternative to the other two voltage measurement modes it is treated as a voltage measurement mode When in this mode only V12 and V32 not V23 or V31 are measured and displayed It is important to note a limitation of operating in phase phase mode The power factor and power reading for each phase are not necessarily accurate This is not due to any accuracy problem with PowerSight Instead it is the result of each phase s current being the result of two different phase phase voltages whereas a phase s power and power factor calculations rely on only one of the phase phase voltages Therefore although the power factor and power readings have diagnostic value they are not true representations of the actual power factor or power being used for a given phase Nevertheless the measurements that count most the total power factor and total power are correct in phase phase mode This result may seem surprising given that the individual phase measuremen
63. ater or other conductive liquids since they may pose a safety risk A Use of this equipment in a manner not specified by Summit Technology can result in injury and voiding of warranty Table of Contents Introducing PowerSight ccccccccesseeesseeneeeeeeeeeeeeeeeeeeeeeeeesenees 7 In a Hurry The Basics of Operation eeeeeeeeseeeeeeeees 8 Connecting to PowerSight ccccccssssssseeeeeeeeeeeeseeeeeeeeeeeeeeeeeeees 9 Voltage Test Leads ceeccccecescccceeesecceeeeeeceeesnseaeeeseseaeeeseseaeeeseeeaeenenaes 9 Current PrODGS ia2iccctaseeseua datieascacivvexniazcanndadbzevansazesstdcatbesansadeangaanzeteteat 10 Connections to PoWerSight c ccccccceeeeeeeeeeeeeeeeseeeeeseaeeesaeeneneeeeaes 12 Introduction to Power Delivery Configurations cccceeeeeeeees 14 Connecting to Single phase POWE cc cccecseceeessteceeessteeeeessteeeenees 16 Connecting to 120 V Outlet Adapter Box ccceeceeceeeeeeseeeteneeeeees 17 Connecting to Multiple Single phase LOadS cccceeeeeeeeeeeneeeeees 18 Connecting to Split Phase Two Phase Power sessen 19 Connecting to Three Phase Four Wire Wye Powe 0 c eeee 20 Connecting to Three Phase Three Wire Delta Power 0 21 Connecting to Three Phase Four Wire Delta Powet 0 ccccee 22 Connecting to Three Phase Grounded Delta Powet cccccee 22 Connections Using 2 Current Approach
64. average Power Factor phase 3 average 144 Power Factor Total average The results of these tables are not intended for use with other custom log setups Log Interval Default Setup CustomSample Time Capacity Setup Time Capacity 1 second 75 7 minutes 4 3 hours 5 seconds 6 3 hours 21 3 hours 10 seconds 12 6 hours 42 6 hours 15 seconds 18 9 hours 2 7 days 30 seconds 37 8 hours 5 3 days 45 seconds 2 4 days 8 0 days 60 seconds 3 2 days 10 7 days 90 seconds 4 7 days 16 0 days 2 minutes 6 4 days 21 4 days 3 minutes 9 5 days 32 0 days 5 minutes 15 8 days 53 3 days 10 minutes 31 5 days 3 5 months 15 minutes 6 8 weeks 5 3 months 30 minutes 3 1 months 10 5 months 45 minutes 4 7 months 15 8 months 60 minutes 6 2 months 21 0 months 90 minutes 9 4 months 2 6 years 99 minutes 10 3 months 2 9 years Log Capacity 4 450 records 15 344 records 145 Troubleshooting amp Frequently Asked Questions FAQ 1 Why can t connect to the PowerSight Manager software See the PSM Troubleshooting guide on your installation CD or view the guide on our web site www powersight com for detailed help 2 How do I connect to my laptop if it does not have Bluetooth communications capability You can buy a Bluetooth Adapter from Summit Technology order BTA This adapter will plug into one of your USB ports Other brands will likely work but cannot be guaranteed to
65. beatae reese 128 Deleting Data in the Meter eccceeeeseeeeeeeneeeeeeneeeeeenaeeeeeeaeeeeneaaes 129 Administrative Functions 00 0 0 ceccceeeeeeeeeeeeeeeeeeseeeaeeeeeeaaeeeeeeaeeeeeeaaes 129 Other Functions within PSM 00 ccssscsssseeeeeeeeeeeeeeeeeeeeeeeeeeees 132 ProductioN asiaan t a e T E T E eevenitadvee shined 132 Remote Control of PowerSight c cccceccecseeeeeeeeeeeeeeeeeeeeneeeennees 132 Locating and Installing Software and Firmware ss 133 Setting up Administrative Features of PowerSight via PSM 134 Setting Operational Features Of PSM 0 cccccesceeeereeeeeeeeeseeeeeeeeees 134 Putting it all Together Monitoring for the First Time 135 Working with Graphs and Waveforms ccccccssssesseeeeeeeees 138 Generalki sie a viene Rie aa eee as henner eed 138 Reading Graphs and Waveforms cccccccsseeeeneeceeeeeeseeeeeeeeeeees 140 ZOOMING and PANNING 00 ee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeaeeeeeeaaeeeeeeaeeeeneaaes 142 Determining Log Capacity eccccccesseeeeeeeeeeeeeeeeeneeesneeees 144 Troubleshooting amp Frequently Asked Questions FAQ 146 Overview of the Keypad Functions cccccccsssesesseeeeeeeees 150 Compatibility Guide cccccceesssseeeeeeeeeeeeeseeeeeeneeeeeeeeeeees 152 Speciticatlons 2s Acticin ii ne ens 154 Introducing PowerSight Congratulations on your decision to buy a PowerSight PS3500 You have just purc
66. ccsccceeseeseeeeeeseeeeeneeeeees 23 Connections To a 3 CT 3 PT Metering Circuit 24 Connections To a 2 CT 2 PT Metering Circuit 27 Connections To an Open Delta 8CT 2PT Metering Circuit 27 Connecting to Line To DC LDC Converter Accessory s 28 Measuring Multiple Parallel Conductors ccecseeeceessteeeeeenteeeeeeaaes 30 Measuring Currents Below the Range of the Current Probe 32 Turning PowerSight ON eeeeeeeeeseeeeseeeeeeeeeeeeeeeeeeeeeeeeees 33 Connecting to POWED ccccceceeeeeeeeeeeeeeeceeeeecaeseeeeeseeeeeseaeeesaeeseneeeeaes 33 Turning PowerSight ON ccccccecceeeeeeeeceeeeeceeeeeaeseeneeeeeeeseaeeeeaeeseaes 34 Turning PowerSight Off cccccccceeeesseeeeeeeeseeeeeeaeeeeeeeseeeeeseaeeseeeeeaes 34 Communicating with PowerSight cccccsssssssseeeeeeeneees 35 Introductio ninna lee dash Jenene teats Ee aN a eee ea 35 Step 1 Connecting to the Meter at the Operating System Level 36 Step 2 Connecting to the Meter in PSM the Application Level 37 Using Removable Memory Cards ccccccssseesseeeeeneeeeeeneees 39 IiEFOGIIGTIOMN Stexes522i 62 25 chant aaa aa O E N bal 39 Operation and Limitations cccceccceesnececeesneeeeeseneeeeessteeeeseseeeenees 39 Using the Memory Card Data with PSM 0 cccceecceeeeeeeseeeeeeseeeeeees 40 Verifying Connections Using PowerSight SureStart 42 Importance of Verifying
67. ceeeeeceeeeeeaeeeeeeeseeeeeseaeeesaeeeeneeees 113 Stopping Data Logging ccceccecseeceeeeeceeeeeeaeeeeeeeseeeeeseaeeesaeeeeeeeees 114 Setting the Consumption Logging Period cccccceceeeeseeeeereeees 115 Setting Measurement Type c ccceecceceeeeeeeeeeeeeeseeeeeteaeeesaeeeeneeees 116 Setting Measurement MOdeGS ccccceceeeeeeeeeceeeeseeeeetaeeesaeeeeeeeees 117 Saving and Retrieving Data Setups to File or PowerSight 118 Loading Data Setups from the Memory Card SD Card 0 118 Saving Data Setups to the Memory Card SD Card eeeeeee 119 Restoring the Default Setup cccceeeececeeeeeeeeeeeseeseeeeesaeeesaeeennees 120 Disturbance Monitoring ceseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeneeseneeees 121 Introductio ctiveseissccehiaste eee a wield 121 Monitoring Disturbances 0 0 2 ceeeeeeee enn eeeeeeeeeeeetaeeeeeeaeeeeeeaeeeeeees 122 Report Generator Software ccccccceseeeeseeeeeeeeeeeeeeeeeeeees 124 IMFO GUCTION esaa a STEA EAA E ET 124 Generating a Report ccecccecceeceeeeceeeeeceeeeeeeaeeeeeeeseeeeeteaeeetaeeeeeeeee 124 viewing a REPOST cceeeeeeeeeeeeeeeteeeeeeeeeeeeeeseeeeneeeeeaeeeseeseneeeeeseneeees 126 Other Functions of PowerSight eeeeceeesseeeeseeeeeeeeees 128 Calibrating POWerSiQht ccccssseceeceeceeeeeeeaeeeeeeeseneeeeaeeesaeeeeneeens 128 Setup FUNCONS adieran fepeehed eevee des agadeen aada aeara
68. connect PowerSight to PSM and then either go to the Setup Data menu and read what appears in the Input Frequency box or operate in Remote Control mode and press the key combinations described above To change the frequency measurement mode using Input Frequency Variable 22 200Hz gt PSM either go to the Data Setup menu click on the Input Frequency drop down box select the mode that you wish to operate in and then send the new setup to the connected PowerSight meter or operate in Remote Control mode and press the key combinations described above Variable 360 440Hz Always Positive Power versus Negative Power Allowed There are 3 power measurement modes in PowerSight Always positive power Negative power allowed 2 current probe approach Most users perform measurements on equipment that is either always consuming power or always generating power However there are cases in which you may wish to measure power use on equipment that is alternatively consuming and generating power like an oil well pump jack Always Positive Power measurement mode and Negative Power Allowed measurement modes are provided to allow ease and accuracy of measurement in both types of situations When PowerSight is shipped from the factory it is set for Always Positive Power measurement mode In a typical setup if you connect a current probe backwards the power for that phase will appear to be negative In Always Positive Power measurement
69. d it asks if you wish to begin monitoring of consumption Press No Reject and it asks if you wish to begin monitoring of disturbances Press Yes Accept and it asks if you wish to monitor Van Press Yes Accept and it asks if you wish to set the transient threshold at a suggested value if monitoring a voltage the value is at least 20 volts above the peak value that PowerSight presently sees for that signal Press Yes Accept and disturbance monitoring begins You are flagged that disturbance monitoring is in progress by the flashing exclamation marks that appear on both ends of the bottom line of the display and by the summary display of how many transients spikes above the threshold have been encountered since monitoring began Since disturbance monitoring takes all of PowerSight s attention any request you make causes it to suspend monitoring For instance if you press Volt to check the present voltage level PowerSight immediately suspends monitoring to service that request and asks if it was OK to suspend monitoring If you press Yes Accept then monitoring stays suspended You are reminded of this fact by the exclamation marks remaining on continuously on the bottom display line You can now obtain any measurement and perform most functions without limitation If you had pressed No Reject PowerSight would have immediately returned to disturbance monitoring and the exclamation marks would have resumed blinking
70. d to PowerSight you can also capture a waveform set at any given moment by clicking on the View Attached Signals button on the Main Menu A waveset captured this way is immediately stored in the PC and shown on the screen It does not affect waveform veers UL gt 3 sets stored on the Eo FEB Bemote Contol PowerSight meter that is E 7 F View Attached Signals attached Itisa CTE vowatatedsina ee Serial Number 41356 Measurement Overview convenient way of Fimo 22 Hardware 6 30 viewing the signals that are attached repeatedly 99 Receiving Stored Consumption Waveforms Waveform sets that are stored inside of a connected PowerSight can be received by PSM in either of two ways At the Main Menu you can either click on the Receive Data button or on the Data dropdown button and then Receive Data In either case the Receive Data menu will open and all the different types of data files in the PowerSight Mana gt connected File Settings Vie 2e Jreat Help PowerSight willbe displayed Setup v Ponersioht Manager ersion 3 11 Jun 3 Make sure that Ef dae seu Psao00 gt there is a check in aM Setup Unit P ae the box before the Setup _ line Consumption Communications a et 5 K enal Number Data in the Data p Receive orisu Da att S Types to Receive EPE Receive Data Hardware 6 30 section Then look Warrenty Ends 05 25 05 for the Waveset
71. des and phase angles of each harmonic The THD F and K factor are also listed In addition our Report Generator software will present average THD F for voltage and current of each phase during any one or two intervals of time set by the user If the use of two time intervals is chosen it will report the percent change and the actual change between the two intervals For instance if a comparison report is chosen and THD F of Vin is 4 8 during the first interval and 4 7 during the second interval then the report would show Disturbance Transient Measurements in PowerSight The model PS3500 can monitor for voltage or current transients The type of disturbance that is detected in this mode of operation is an absolute transient This is a level of voltage or current that exceeds an absolute threshold The absolute threshold is an instantaneous magnitude that makes no allowance for the underlying waveform For instance if you monitor a 120 Vrms phase neutral system during every cycle the instantaneous voltage will pass from 170V to 170V if it is a perfect sine wave If you set an absolute threshold of 200V if the voltage ever exceeds either 200V or 200V a trigger will occur This means a spike of 30V occurring at the normal peak voltage 170 30 200 would cause a trigger whereas a spike of 200V would be required to cause a trigger when at the zero crossing point of the sine wave 0 200 200 Similarly ina 120Vrms system if
72. displayed and then More to display power cycles per hour Time and Capacity Measurements PowerSight performs the following time and capacity measurements present time and date time capacity of consumption log elapsed time of monitoring time remaining to fill consumption log 79 record capacity of log number of records used in log time and date that monitoring started programmed start time and date of monitoring programmed stop time and date of monitoring The present time and date is the time and date of the clock inside PowerSight used for creating timestamps for the records of the log and for dating waveform sets that are saved It can be changed as one of the administrative functions see the Administrative Functions section The time capacity of the log is how much time it will take to fill the consumption log This is under your control by changing the variables selected to be recorded using the Data Setup feature of PSM see the Setting Measurement Types section The time capacity of swell dip and high speed transient logs is determined solely by how quickly events occur The elapsed time of monitoring is how long the unit has been monitoring Generally this is how much time is recorded in the log If the log fills up and logging continues writing over the oldest data the elapsed time keeps increasing even though the logged time quits increasing This means that the maximums minimums and averages dis
73. e Vy Vy phase and split phase service as found in a aN residential service In V3 Vn Vo Lvs v North America ViN 2 and V2n are 120V Four Wire Delta Grounded Delta and are 180 degrees out of phase with Fig 1 Common Power Delivery each other When Configurations heavier loads are encountered V12 240V is used by delivering both hot voltages to the load Neutral provides the current return path If the load is balanced there will be relatively little neutral current Refer to figures 2 3 4 and 5 for various ways to connect to single phase and split phase power service Figure 1B presents normal three phase wye power service Voltages are usually measured from phase to neutral Neutral provides the current return path If the load is balanced there will be relatively little neutral current Refer to figure 6 for how to connect to a three phase wye power service Figure 1C presents normal three phase delta service Voltages are usually measured from phase to phase In North America service is usually supplied as 120V 240V 480V 600V 4160V or 12 500V In most of the world phase to phase service is usually supplied as 381V 5 716V or 11 431V Summit Technology has voltage probes for direct connect to all of these services Refer to 14 figure 7 for how to connect to a delta power service When there is no access to measuring one of the currents figure 8 presents the 2 current approach for measuring power T
74. e Measurements in PSM The consumption data log can record maximum minimum and average true power factor for each phase and for total power for each logging period The summary values at the top of the screen are the maximum minimum and average of all the values shown on the screen When viewing consumption waveforms the average true power factor of the waveform is shown at the top right If a harmonic analysis is displayed the true power factor is also listed If trending data is being recorded and PowerSight is operating in phase phase voltage measurement mode the average total true power factor for each second will be displayed and recorded each second Phase lag angle is most easily determined by viewing a waveform and then clicking on the phasor diagram icon The phase lags of each phase will be listed on the right as well as the phase angle between the phase 1 voltage and all other signals The measurements of true power factor displacement power factor and phase lag angle presented on the PS3500 can also be displayed in PSM by using the remote control feature In addition our Report Generator software will present maximum minimum and average true power factor of each phase and of the total power factor during any one or two intervals of time set by 69 the user If two time intervals are chosen it will report the percent change and the actual change between the two intervals For instance if a comparison report is ch
75. e Power Factor Measurements in PowerSight The PS3500 performs all commonly desired true power factor measurements To view true power factor press Power Factor If the display says True P F then pressing Power Factor repeatedly will allow you to view the true power factors of phases 1 2 and 3 and the total power factor of the three phases If the display says Displacement P F then press Power Factor three more times until it says True P F The sequence of the display is TPF1 gt TPF2 gt TPF3 gt TPFt gt TPFall gt DPF1 gt DPF2 gt DPFs The maximum minimum and average power factors of the most recent monitoring session are displayed by repeatedly pressing More after displaying the appropriate power factor For instance if the average power factor of Phase 3 is desired press Power Factor to display PF1 Power Factor to display PF2 Power Factor to display PF3 More to display maximum PFs More to display minimum PFs and then More to display average PF3 66 In any display other than Power Factor and TPF was last power factor type displayed r o Displacement Power Factor of phase 3 is displayed l Power Factor TPF More TPF max More TPF min More TPF av More Power Factor 4 TPF bee TPF ax More TPF min More TPF avg More Power Factor TPF More TPF sma More
76. e Range of Magnitude 2500 Vpk Captured Waveforms Quantity 28 waveforms organized into 4 time coincident wavesets of 7 each 3 voltages and 4 currents Special 1 waveset is always a recording of signals present when Monitoring began These specifications are subject to change without notice 155
77. e and single phase power The three phase power is typically 240V for running motors The dual single phase power is typically 120V for running lights and small equipment from one power service It also provides 208V Depending on what you intend to monitor it may be appropriate to set PowerSight in phase phase voltage measurement mode to monitor three phase loads or to look at total power or in phase neutral voltage measurement mode to monitor single phase loads Although the selection of voltage measurement mode affects what voltage levels are displayed and recorded phase phase versus phase neutral it does not affect the power and power factor calculations Connecting to Three Phase Grounded Delta Power Figure 7 presents the recommended connections to a three phase system with one phase tied to ground No connection is made to the neutral input One of the phases originates from ground Be sure to follow the safety warnings of the previous sections before making the connections 22 Connections Using 2 Current Approach In the previous sections the approach used Phase 1 to measure power has been based on determining the power of each phase and then j summing them PowerSight to get the total power The 2 current approach figure 8 allows you to determine the total power from measuring only 2 of the 3 currents and combining them Fig 8 Connections for with the 3 2 Current Probe Approach voltages
78. e of all the values shown on the screen When viewing consumption waveforms the average RMS of the cycles of the waveform is shown at the top with the average crest factor listed below it The instantaneous value of each point of the waveform can be determined using the vertical scale lf a harmonic analysis is displayed the RMS current is also listed If trending data is being recorded and PowerSight is operating in phase neutral voltage measurement mode the average RMS current of each phase and neutral for each second will be displayed and recorded each second If in phase phase voltage measurement mode the average RMS current of each phase for each second will be displayed and recorded each second The measurements of current presented on PowerSight can also be displayed in PSM by using the remote control feature 59 In addition our Report Generator software will present maximum minimum and average current of each phase and neutral during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change between the two intervals For instance if a comparison report is chosen and h average is 48 0 A during the first interval and 47 8 A during the second interval then the report would show Before After Units Change Change The total harmonic distortion THD and K factor of currents is displayed using the THD function discussed later in t
79. e to ground is intentionally an excellent conductive path Nevertheless PowerSight will provide the desired measurements in this configuration 15 Connecting to Single phase Power Figure 2 presents the basic connections to a single phase system Be sure to follow the safety warnings of the previous PowerSight sections before making the connections Clamp your phase 1 current probe onto the Hot wire Make a metallic connection to neutral with the Vn voltage lead Similarly connect the V1 lead to Hot Since voltage now comes into PowerSight on V1 and current is sensed by l1 the power and power factor for this single phase system will be available as phase 1 power and phase 1 power factor Fig 2 Basic Single Phase Connection A Caution Until you are certain that your voltage connections to PowerSight are correct disconnect any current probes This is because PowerSight and all of its connections float at the potential of Vn If Vn is hot there may be a breakdown through the insulation of any attached probes Helpful Hint How to Identify the Neutral lead Normal single phase wiring follows the convention of neutral being the white wire hot being the black wire hot2 being the red wire and ground being the green wire If the wiring and your 16 connections to PowerSight are as shown in figure 2 Vin will be some relatively large number like 120 volts and V3n will be a small voltage l
80. e very incorrect Similarly if all of the connections are correct but the three phase circuit has a phase lead of 30 degrees strongly capacitive PowerSight will report that there may be 2 errors because a phase lead of 30 degrees is so very unlikely hence it displays that there may be errors You may need to use some judgment but in general the SureStart feature will make a judgment of what s right and what s wrong and its judgment will be correct under most circumstances We are proud of this feature Identifying Errors After the system type is identified the number of errors that were detected is displayed once each six seconds Pressing the More key repeatedly will step through each of the errors It is important to note that when the voltages look reasonable PowerSight assumes that they are connected to the correct phases Thus if the voltages are rotated to the right one position but the current 45 probes are connected correctly PowerSight will report that the current probes are rotated left one position Although assuming that the voltage connections are not rotated identifies the phases incorrectly the total power will be correct and the individual readings will be correct The phases will be mislabeled Another thing to consider is that in some cases several possible explanations for the same error are listed as separate errors In these cases the potential errors are listed in order of how likely they
81. eir PowerSight Manager PSM software and clicking on the Data Setup button on the main menu At the upper left of the Data Setup window eee will be the number of records Pliccords _ 4540 that can fit in the log and the _Shoose Meseuenent Types amount of time it will take to fill Parr the log If any of the logging Log Stat ioe E naai parameters are changed on the ve DEE Input Frequency Variable 45 66Hz screen the effect on capacity Oe aaa N will be immediately updated Power Mode Always positive When the capacity is Define input ratios and names acceptable it can be sent to the connected PowerSight unit or stored to file for later use This is an easy and general purpose way of determining log capacity The following tables provide log capacities for a variety of logging intervals if you use either the Default setup for PowerSight or a custom setup created just for comparison purposes This illustrative setup is typical of one intended for general logging of power It is called CustomSample The CustomSample setup has only the following variables selected using the data setup feature Time Date Voltage phase 1 average Voltage phase 2 average Voltage phase 3 average Current phase 1 average Current phase 2 average Current phase 3 average Current Neutral average Power phase 1 average Power phase 2 average Power phase 3 average Power Factor phase 1 average Power Factor phase 2
82. ended to insure that you will be successful in your first and later monitoring attempts There are several ways to start monitoring If you wish to use the default values simply turn the unit on press Monitoring On Off then Yes Accept to indicate that you wish to start monitoring No Reject to indicate you do not want to combine the new log with the existing log inside the unit and then Yes Accept to affirm that you want to erase the old log in the unit Monitoring will then begin and continue until you stop it or turn the meter off The remainder of this chapter assumes that you wish to use the computer to customize or at least check your monitoring settings prior to starting monitoring The computer must be running the PowerSight Manager PSM software that comes with the meter and the computer must be connected to the PowerSight using the communications cable that comes with the meter There are three ways to start logging PowerSight can start immediately by command of PSM can start at a time and date set by PSM or can start when turned on and connected to power If you wish PSM to command PowerSight to start logging then you must have the computer with you when you connect PowerSight up for logging The other methods can be set up at another time and location and then PowerSight can be transported to the site of logging The first step is to set up or check the parameters for logging 1 Review the chapter Communicat
83. ent even though they might be large enough for an accurate RMS measurement Although these situations are unusual they can happen For that reason we recommend one of the fixed frequency modes when practical The fixed frequency measurement mode is necessary when measuring DC voltage or DC power In a DC system the frequency is 0 Hz which is clearly outside of the variable frequency measurement range By setting PowerSight in one of the fixed frequency measurement modes PowerSight no longer measures the input frequency each second it simply assumes the frequency This assumption of the time required to measure the inputs allows for accurate readings in DC systems and systems in which only higher harmonics are present as with rectified signals It also allows accurate readings of AC and mixed AC DC signals such as AC ripple on a DC voltage Changing the Frequency Measurement Mode in PowerSight To determine which frequency measurement mode PowerSight is in simply press the Measure Mode key twice and read the display To change the frequency measurement mode from what is displayed press the No Reject key and then press Yes Accept when the desired measurement mode is displayed The frequency measurement mode that you choose will stay in effect until you change it It will not be changed by turning PowerSight off 91 Changing the Frequency Measurement Mode in PSM To determine the frequency measurement mode using PSM
84. eous products of voltage and current That is normally quite different from the product of the RMS voltage and RMS current Second a single phase wattmeter should not be used for this calculation since conditions normally change second by second and hence adding the watts of two different setups will at best give a feel for the correct true power Lastly it is more important to make the connections correctly in this approach since an error will not be obvious and there is no way of recovering to an educated guess of the correct power reading Refer to the Phase Neutral vs Phase Phase vs 2 Current Mode section for how to operate the unit in 2 current probe mode Connections To a3 CT 3 PT Metering Circuit Sometimes it is helpful to monitor a load indirectly by connecting PowerSight to a metering circuit in front of the load A few circumstances where this is the case are the CTs current transformers and PTs potential transformers of the metering circuit are readily accessible for connecting to whereas the actual load carrying cables are not the conductors carrying the load are physically too large for your current probes to fit around them the load current is too large to be read by the current probes you have the voltage delivered to the load exceeds the 600V insulation limit of the current probes 24 the voltage delivered to the load exceeds the 600Vrms rating of PowerSight and you do not have other high vo
85. es of the fundamental frequency Thus any repeating waveform that does not appear to be a pure sine wave can be replicated by adding a collection of sine waves of varying frequencies phases and peak amplitudes Since the frequencies are exact multiples harmonics of the fundamental the waveform could be considered to be distorted from a pure sine wave by the addition of harmonic frequencies The total harmonic distortion provides an accurate measure of how distorted from a pure sine wave a waveform is There are several related measures of interest Fundamental frequency Harmonic frequency Harmonic number Harmonic amplitude Harmonic phase angle THD total harmonic distortion K factor 82 The fundamental frequency is the first harmonic It is discussed in the Frequency Measurements section The harmonic frequencies are the frequencies that are multiples of the fundamental frequency For instance the 7 harmonic of 60 Hz is 7x60 420Az In this case 7 is the harmonic number of 420 Hz in a 60 Hz system The RMS value of a harmonic frequency is its harmonic amplitude They can be expressed as relative to the amplitude of the fundamental frequency or as an actual RMS amp value For instance if the fundamental frequency has a current of 120 amps and the 5 harmonic has an amplitude of 30 amps then the 5 harmonic has a magnitude of 30 amps or a relative magnitude of 50 The harmonic phase angle is the number of degree
86. esent implementation of Bluetooth communications in Windows is less straightforward than USB or RS232 communications The next sections assume that a Bluetooth adapter is already installed in your PC Summit Technology sells an adapter order BTA but most Bluetooth USB adapters will work Follow the instructions that come with the adapter to install the software If you have our BTA adapter and run the Windows Vista operating system don t install the Bluetooth software Vista has drivers for it and automatically configures for it 35 Step 1 Connecting to the Meter at the Operating System Level The PowerSight meter and your PC must be turned on before the first step can occur As soon as your meter is on the Bluetooth adapter in the meter is energized and can respond to broadcasts from your PC s Bluetooth adapter Different implementations of Bluetooth have different messages and screens for establishing communications but they all follow a similar flow First the Bluetooth device is located then it is paired and finally a serial communications channel is established with it Your Bluetooth software will probably have a Bluetooth icon shortcut on the desktop or at the bottom of the screen You will need to click on it and click on something like My Bluetooth Devices Click on it and if you have previously communicated with your meter an icon for your meter will probably appear It will have a name of PS3500 nnnn
87. ess Power Factor four more times until it In any display other than Power Factor and Displacement Power Factor was viewed last or Total True Power Factor is displayed Phase Angle 1 Measure True Power Factor User Interface for Displacement Power Factor Measurements says Displacement P F The sequence of the display is DPF1 gt DPF2 gt DPF3 gt TPF1 gt TPF2 gt TPF3 gt TPFTr If you wish to know the actual phase lag of current in degrees press More For instance if you wanted to see how much the phase 3 current lags behind the phase 3 voltage press Power Factor to display DPF1 Power Factor to display DPF2 Power Factor to display DPF3 and then More to display the phase lag of phase 3 In this way by combining the Power Factor and More keys there are 6 displacement power factor and phase angle measurements available 68 The display of power factor tells you if current is leading or lagging voltage For instance if current lags voltage in phase 1 the display will read Vin l1 If current leads voltage the display reverses the order and reads h Vin Determining whether current is leading or lagging is necessary when correcting power factor by using capacitance The phase lag angles of all phases can be viewed simultaneously using the checkout connections feature The final screen of that 6 step process displays these angles in degrees of lag Power Factor and Phas
88. etal contacts of clamp on current probes are clean and securely fastened 8 How long will it take for my memory to fill up during data logging This depends on your logging period the amount of data being stored and the amount of memory available As you change these values using our PowerSight Manager PSM software it will automatically display how log it will take to fill the log To see this just click on the Data Setup button at the main menu of PSM The Monitoring Activities section is where you can choose what data types and variable types you want PowerSight to record into memory You can also press the Time button 3 times to see the time to fill log displayed on the screen of PowerSight 9 What is a Logging Interval The logging interval is the amount of time that passes between PowerSight making entries into its internal data log The logging interval determines the rate at which new records are added to the meter s log A logging interval is the length of time between PowerSight recording measurements into its internal data log Each second PowerSight summarizes measurements such as voltage and current for all phases and the end of the logging interval these one second summaries are condensed into an average a 147 maximum and a minimum which are then recorded into the log For instance if you set a logging interval of 15 minutes PowerSight will keep track of the average maximum and minimum of all me
89. f PSM and then click aniti O Firmware Upgrade The mi E J oee Firmware Upgrade window soem CECS will pop up Locate the firmware upgrade file and g i then click on Upgrade The Evsan iE R A process will take several E ve tweet minutes For detailed instructions examine the application note UpgradingFirmware pdf located on your installation CD To upgrade via SD card write the new firmware file onto your SD card in the root directory the highest folder of the file hierarchy on the card Turn on your meter and press on the Admin key many times until it displays Upgrade Firmware from Memory Card Press the Yes key and follow the instructions that are displayed 133 Setting up Administrative Features of PowerSight via PSM As aconvenience several of the administrative settings of PowerSight can be set within xl PSM At the main menu with a Greetings PowerSight meter connected Linel ia click on Setup Unit and the ee Setup Unit window will pop up Technologies He The present personal greeting date and time and KWH cost rate ET e se will be displayed Simply make josz aa forsri7 any changes that you wish and Unit then click OK The changes will mm be made to the attached PowerSight A very important feature is the ability to synchronize the time of the connected PowerSight to the time of the PC This is nice for quickly and accurately setting the time b
90. factor Displacement power factor is 1 00 for a purely resistive load or a DC system and drops down as the reactive power increases True power factor can be determined for each phase and for the total power Terms for these measures are TPF TPF2 TPFs TPFt The total power factor is not the total of these individual power factors it is the ratio of the total true power over the total apparent power Typically all four power factor measurements are similar in magnitude Displacement power factor can be determined for each phase Terms for these measures are DPF1 DPFe2 65 DPFs3 There is no such thing as total displacement power factor Typically the displacement power factors of each phase are similar in magnitude In addition the following can be measured for each phase Maximum true or displacement power factor Minimum true or displacement power factor Average true or displacement power factor Present true or displacement power factor Maximum minimum average and present total true power factor can also be measured Finally a measurement related to DPF is displacement phase angle The displacement phase angle is the number of degrees that the current at the fundamental frequency lags the voltage at the fundamental frequency In the absence of harmonics it is the inverse cosine of the true power factor It is always the inverse cosine of the displacement power factor cos DPF Tru
91. fault Setup The default setup can be restored to PowerSight at any time The easiest method is to press the Setup key several times until the message Restore Default Setup is displayed on the meter Press the Yes key Another method is to connect the meter to PSM click on the Remote Control button at the main menu and use the Remote Control screen to virtually press the keys as described in the previous paragraph The third method is to connect the meter to PSM click on the Data Setup button at the main menu then click on the Defaults button and then click on the Save to PowerSight button in the Save Log Setup Section and then click OK and let the default setup transfer to PowerSight 120 Disturbance Monitoring Introduction Your PS3500 can monitor for high speed transients spikes on any one of its input signals When in this mode of operation it devotes all of its resources to detecting transients This means that you cannot monitor consumption while you are monitoring for disturbances The type of disturbance that is detected in this mode of operation is an absolute transient This is a level of voltage or current that exceeds an absolute threshold The absolute threshold is an instantaneous magnitude that makes no allowance for the underlying waveform For instance if you monitor a 120 Vrms phase neutral system every cycle the instantaneous voltage will pass
92. from the memory card the SD card Examples include re loading the setup into the meter to be sure it is correct loading different setups as you move from location to location To load a data setup into the meter from an SD card load the data setup file onto the SD card in an accessible place Data setup files end with the file extension stp The meter can detect these files if the are located in either the root directory the highest level folder on the card such as F or in a directory off of the root that is named the same as the serial number of the meter For instance a meter with serial number 12345 can detect data 118 setups that are in the root directory e g F or the serial number directory e g F 12345 To detect a data setup on an SD card press the Setup key It will ask if you wish to load a setup from the memory card Press Yes It will then look in the serial number directory for data setups The friendly name of the setup will be displayed If you want to load the setup press Yes otherwise press No If there are no data setups in the serial number directory or you do not accept any of them it will next look in the root directory to see if there are data setup files It will then ask if you wish to load any of them If there are no data setups in the root directory or you do not accept any of them it will ask again if you wish to load a data setup from the memory card This
93. functionality makes it easy to load multiple setups onto an SD card to support a test plan including multiple locations and involving multiple meters Saving Data Setups to the Memory Card SD Card It is beneficial to store a copy of the present data setup onto the SD card to document how a monitoring session was set up This is done automatically when an SD card is installed Each time monitoring starts and an SD card is in the meter a serial number directory is created if it is not already present and a logging directory is created to hold the various files created by the monitoring session A copy of the data setup is stored in the logging directory at that time As an example say a meter with serial number 12345 has an SD card installed that will be read on your computer as drive F and say monitoring was started at 11 22 33 on June 24 2012 You could encode the date as 120624 to show the last two digits of the year then 2 digits for the month and 2 digits for the day You could encode the time as 112233 to show two digits for the hour two digits for the minute and two digits for the seconds Combining all this you would find the following setup file when you read the SD card on your computer F 12345 120624_112233 12062411 stp This setup file can be used again if placed in the serial number or root directories and it can be useful if there is a question about the data at the end of the monitoring session 119 Restoring the De
94. graceful software firmware shutdown If following this process does not turn the meter off press the on off button down and hold it down for 3 seconds to force a hardware shutdown If this is a recurring problem contact support powersight com 34 Communicating with PowerSight Introduction The PS3500 uses Bluetooth wireless communications to communicate with your PC There are several advantages to this method safety enhancement since there are no metallic connections between the meter and your PC part of what allows your meter to be rated for 600 V Cat IV the highest safety rating in the industry simplicity no communications cables are needed reliability no cable means no forgotten cables at the site and success in on site setup and download reliability no physical connections are needed hence physical connection problems are minimized reliability the Bluetooth communications protocol provides for robust error free communications flexibility communicate with the meter from up to 30 feet away The disadvantages are the Bluetooth connection must first be made at the operating system level before the PSM application can make the application to meter connection your PC may not have Bluetooth capabilities in which case you need to add a USB Bluetooth adapter turning your meter off and on may require re establishing the Bluetooth connection at the operating system level the pr
95. h insulation protection on hands and forearms in these circumstances or deactivate the circuit The DC600 probe is used for AC current measurements from 5 to 400 amps and DC measurements from 5 to 600 amps It offers accuracy of 2 1 amp from 5 400 amps and 3 accuracy for DC from 400 600 amps This probe relies on Hall effect technology and its output varies slightly over time Therefore a zero level adjustment is provided on the probe s handle for initial zeroing before each measurement session The probe can clamp around one cable up to 1 18 inch diameter or two cables of up to 0 95 diameter Unlike other manufacturers DC probes ours do not require batteries for them to run New probes and adapters are introduced regularly so if you have a special need give us a call Please Note Always inspect the metal surfaces of clamp on probes before use Clean them with a rag or sand them with fine sand paper and then slightly oil the surface Any dirt or rust will affect the accuracy of the measurements Connections to PowerSight Voltage test leads plug into the top end of PowerSight Each test lead of the Deluxe Voltage Test Lead set is labeled Vn V1 V2 or V3 and each jack is similarly labeled Vn V1 V2 or V3 A Note The Vn test lead is a different color from the other leads black Similarly the Vn jack on PowerSight is a different color from the other ones black Connecting anything other than neutral or ground to the
96. hased one of the smallest and yet most powerful instruments for measuring and analyzing electric power that exists The PS3500 offers a complete energy analysis solution offering the capabilities of several instruments in one compact package It performs Data logging Demand analysis Harmonics analysis Wiring and system analysis Absolute transient detection Automated report writing The philosophy of the product is to give you an instrument that answers all your questions about electric power consumption in a truly convenient size at an attractive price works effortlessly with all power systems is nearly foolproof in setup and in getting results reports results quickly and powerfully The combination of the PS3500 meter and the PowerSight Manager PSM software and our Report Writer software is truly remarkable If you are looking for a simple yet powerful tool that can be easily and reliably installed and operated one that provides for comprehensive data analysis you ve found your tool of first choice PowerSight puts all the power in the palm of your hand Note Throughout this manual whenever we refer to an individual key of the keypad we print the name on the key enclosed by square brackets For example the Volt key is referred to as Volt In a Hurry The Basics of Operation If you re in a hurry are experienced and use good sense you can be up and running very quickly 1 Re
97. he Data Setup screen by clicking on Log Start Mode Don t use E the Log Start Mode Start now dropdown box First there Dentur a is the choice of Start now If this is selected when the custom setup is sent to the attached PowerSigNt it will immediately start logging If you click on Start at time a box will open in which you can set the time and date at which to start logging Once the custom setup is sent to PowerSight that date and time will be stored in the unit until a new date and time are written over it This is a great way to synchronize several PowerSights to start logging at the same time so there data logs can be synchronized It is also a great way to log for a specific number if minutes or hours or days or whatever when combined with the mode of stopping data logging at a specific date and time Finally it is the best way to insure that logging begins and continues in the same timeframe that the utility calculates demand period The final option is Don t Use If this is selected logging can only be started by the user manually directly it to start Stopping Data Logging The default mode of operation is for PowerSight to not stop logging until it is turned off There are several other modes of operation that can be selected in the Data Setup screen Stop when full instructs PowerSight to stop logging when the log fills up This is helpful if you don t want to lose the data
98. he eFX6000 The eFX6000 is a flex type probe It consists of a flexible tube about 0 4 inch in diameter and 24 inches long a 36 inch version is also available The ends of this tube snap together around a conductor to sense the current Flex probes are very handy when space is tight when multiple cables must be clamped around or when a bus bar is present They are also lighter than clamp on probes The flexible tube creates a circle with an inside diameter of 7 inches This circle can be deformed into various shapes to accomplish your measurement goals The basic accuracy of the flex probe is good measuring from 1 to 6000 amps across two ranges within 1 accuracy However readings can vary as much as 2 depending on the position of the flex probe while connected Position the flexible portion of the probe around the conductor so that the cable from the probe drops straight down and the place where the ends snap together is at a right angle with the conductor and not touching it The frequency response of flex probes is very good but phase shift increases with frequency Our eFX6000 is powered by the meter so no batteries are required 11 A You must use added caution when connecting an FX series current probe around exposed conductors and bus bars since you must pull the tube around the conductor and thus get your hands and arms closer to it than when using HA series clamp on type current probes Wise practice dictates that you use hig
99. hese estimates are available by repeatedly pressing More after displaying the cost measure For instance if the estimated cost per year is desired press Cost to display total cost incurred during monitoring More to display hour More to display month and then More to display year In this way by combining the Cost and More keys there are 4 cost measurements available The rate used by PowerSight to estimate cost can be displayed or changed by the user at any time It is one of the setup functions that can be accessed through the Setup key Cost Measurements in PSM Our Report Generator software will calculate the elapsed cost and estimated cost per month of energy consumed during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change in cost between the two intervals For instance if a comparison report is chosen and 0 50 of energy is consumed during the first interval of 10 minutes and 0 80 of energy is consumed during the second interval of 20 minutes then the report would show Cost Estimated per month In this example even though the elapsed cost increased significantly the actual rate of cost declined significantly because of the difference in time intervals between the before and after tests You may view or change the rate used by Report Generator to calculate cost It
100. his approach is also useful for measurement of an open delta circuit as described in Connections to an Open Delta Circuit 2PT 3CT figure 10 Although phase to phase is the normal voltage measurement mode for this service PowerSight can be set to phase to neutral even though the neutral is not connected In this case the measured voltages will be phase to metering neutral such as V1N ViN 277V for a 480V service and all other measurements will also be correct Figure 1D presents three phase four wire delta service In this configuration a neutral is supplied from a point midway between two phases This is handy when 240V delta is supplied V2n and V3n supply conventional 120V single phase power and V1N provides 208V if needed In this configuration depending on what you are measuring you may choose to measure in phase to phase mode or in phase to neutral mode Figure 1E presents grounded delta service This configuration is actually not very common It can be attractive to use if an electrically isolated three wire delta service is available and there is a need to provide the power a long distance away at a private facility such as a saw mill By grounding one of the phases at the source the cost of supplying one of the phases to the remote site is saved A motor at that site would be connected to phase 1 phase 2 and earth ground There is increased danger in this configuration over normal isolated delta service since the referenc
101. his chapter Imbalance Measurements In a perfectly balanced three phase system the voltages are of equal magnitude and the currents of the three phases are of equal magnitude In most situations however the voltages and currents are not balanced An imbalance can be a nuisance or can actually cause damage depending on the driven load Therefore it is important to measure voltage and current imbalance There are two methods of measuring imbalance NEMA National Electronic Manufacturers Association uses an approach that measures the deviation of each measurement from the average For instance here is the formula for V12 imbalance V2 V verige 2V V V Va 2 imbal eli Vrug Vo aig V3 Vz Vo Vz F Vz where Vieite z A o Basically this approach finds the average of the readings of the three phases and then finds how far away each of the phases is from this average The phase with the largest deviation from the average is used for the final calculation which is simply dividing this maximum deviation by the average to obtain a percentage deviation always expressed as a positive percentage 60 The European standard IEC61000 4 30 specifies a much more complex method The results are generally quite close to the NEMA approach Imbalance Measurements in PSM PSM performs PowerSight Manager wim04_12_25_07_279 wim imbalance Ble Edt Mew Harmonies Hep ae es i calculations on 4 4 Wo ajap a
102. iggered Events for reviewing the results of monitoring for high speed absolute transients combine it with the More button for more information Harmonics for measuring THD and individual harmonics combine it with the More button for more information More for getting more detailed information such as max min avg or estimates of per hour month year after pressing one of the other keys Volt read phase phase or phase neutral true RMS voltage combine it with the More button for more information Current read true RMS current of any phase or neutral combine it with the More button for more information Power read true power watts VA or VAR combine it with the More button for more information Energy read energy consumed KWH obtain estimates with the More key Cost read cost of energy consumed obtain estimates with the More key Freq read fundamental frequency combine it with the More button for more information 150 On Off Cycles duty cycle number of on off cycles on time combine it with the More button for more information Power Factor true power factor and displacement power factor combine it with the More button for more information Demand Period amount of demand and time of peak demand period combine it with the More button for more information Time present time elapsed time time capacity of log combine it with the More button for more information
103. ight Hardware revision level what level of hardware compatibility it is These identifiers are important in any communications with Summit Technology about your unit SN 41263 DP G 0K FW 3 11 HW 6 10 Viewing the options that are loaded results in a display such as This display indicates that Extended Memory M is active Options HLS4M67 This information may be important Press Yes If OK in communications with Summit Technology Checking the warranty Warranty Expires expiration date results in a 6 24 07 00 3 0 display such as The date 6 24 07 is the date that the warranty expires on the product Contact Summit s Technology to extend the Power sight warranty prior to that date Help since re instating the warranty after that date will cost extra The next number is for the use of Summit Technology Monitoring personnel The final number Oniot cee eee pete is the highest level of pees memes mane Manne a PowerSight Manager software Pf Fo that the unit is presently fey Omot power Demand T eligible to work with ecis ai Yes No Incte Calibra Setup Changing the time and date is anes uaa Saiao emma te useful for identifying the aamin Measure Deu Pint Wave demand period for identifying a Z when monitoring began and is used to label each record of aAA Summit 130 the data log To set the time and date press Yes Accept when asked if you wish to change it Then use lt or gt to positi
104. ike 3 volts If you then reverse the ground and neutral leads V1N will now read slightly less like 117 volts If hot and neutral are reversed then V3n will become a large number like 117 volts Connecting to 120 V Outlet Adapter Box The 120 V Outlet Adapter Neutral oo 120 Volt Line Adapter Box accessory order number 120ADP offers a safe convenient and accurate way to monitor voltage in a commercial setting or to evaluate power usage of appliances Figure 3 presents the connections to the Adapter Box Simply plug the Fig 3 Connects to the 120 V Line Adapter adapter box into a wall socket and then attach the voltage and current leads into PowerSight Each lead is labeled to eliminate errors in connections Note Make sure that the hot and neutral wiring being measured is not reversed If so PowerSight and its attachments will float at 120 V 17 A Note The 120ADPa is rated for continuous duty of up to 15 Arms Do not exceed this continuous load To evaluate the power usage of an appliance simply plug the appliance into the top of the 120 V Outlet Adapter Box after the other connections have been made and verified Even without an appliance plugged in the adapter box offers a convenient means of checking for disturbances or analyzing the harmonic content of the incoming voltage Connecting to Multiple Single phase Loads Figure 4 presents a means to monitor 3 single phase loads simu
105. imated cost per hour Estimated cost per month Estimated cost per year The cost of energy consumed is the actual cost of energy consumed during a period of time such as since monitoring started or during a specific week For instance if 5 KWH was consumed after 10 minutes of monitoring and the rate is 0 10 KWH then the cost during the monitoring session is 0 50 The PS3500 calculates cost each second The estimated cost per hour is the elapsed cost divided by the hours of monitoring For instance if the cost is 0 50 for a 10 minute period then the estimated cost per hour is S est Ihr a 3 00 E 10 The estimated cost per year is the elapsed cost divided by the fraction of a year that monitoring has proceeded For instance if the cost is 0 50 for a 10 minute period then the estimated cost 60x24x365 per year is 0 50x EE 26 280 est yr The estimated cost per month is the estimated cost for a year divided by 12 For instance if the cost is 0 50 for a 10 minute period then the estimated cost per year is S est Imo T 0 50 x eee 2 190 iad 10x12 Cost Measurements in PowerSight PowerSight performs all commonly desired true cost of energy measurements When monitoring consumption the actual cost of energy consumed is displayed by pressing Cost Based on the history of consumption estimates of the cost per hour the cost per month and the cost per year are calculated each second 73 T
106. ing with PowerSight The measurement range extends from 1 milliamp to more than 4 million amps 1 volt to more than 4 000 kilovolts 1 watt to more than 40 megawatts Note When PowerSight is turned off its input ratio settings are not returned to 1 1 You must take care that they are what you wish 95 Changing Input Ratios in PowerSight If you wish to set or change the input ratios in PowerSight press the Input Ratios key once The display will say Set Input Ratio Press Yes Accept If you are setting a current input ratio press Yes Accept If you are setting a voltage input ratio press No Reject and then Yes Accept The display now alternately states Enter Ratio and Source Input Using the number pad of PowerSight enter the first number of the ratio Basically enter a number that represents how many times larger the source that is being measured indirectly is than the input to PowerSight Press Yes Accept then enter 1 and press Yes Accept For instance if entering a ratio for a CT with an output ratio of 600 5 this could be entered as 120 and then 1 or as 600 and then 5 The ratio is the same in both cases Following this PowerSight will ask if the input ratio applies to a specific signal such as lh Press Yes Accept or No Reject as appropriate for each signal it asks about until it displays Entry Accepted Changing Input Ratios in PSM To determine
107. ion with PowerSight to ensure that Bluetooth communications are established between the 135 PC operating system and the meter after the meter is turned on Enter PSM and note that PSM has successfully connected to PowerSight This will be clear by the box on the main menu with the words Unit Connected appearing within a large green banner Note that the box also says Serial Comm enabled and Datalogging enabled Click on Data Setup and a review the setup that is in Eie T View Da Tools Help PowerSight Review the chapter on Custom CED EE n Consumption Data emo E Logging and the sections dy Setup Unit on Setting the Swell Dip e Trigger Threshold Setting the Transient Trigger Thresholds and Allocating Memory within PowerSight and make any changes that are needed in the data setup and store it to PowerSight and perhaps save it to a file For instance check to see how many records and waveforms can be recorded given the choice of variables and allocation of memory and check the length of time that logging can proceed before the log will fill up If any of these items is too small remove unneeded variables change the logging period or reallocate memory As you change the variables or logging period you will see the capacity of the log in number of records and in recording time change to reflect the change If you care about consumption logging make sure the logging period is short e
108. is Irms 1202 60 302 15 138 3A 120x1 60x3 30x5 15x77 K _ factor 138 3 138 3 138 3 138 3 0 75 1 69 1 18 0 58 4 20 Harmonic Measurements in PowerSight PowerSight performs all commonly desired measurements of harmonic distortion The total harmonic distortion THD of any voltage or current can be calculated and displayed upon demand by simply pressing Harmon and then Yes Accept or No Reject in response to the displayed questions The sequence of the questions is calculate THD of 11 gt 12 gt 13 gt IN gt V1N gt V2N gt V3N The result is reported as a percent and is updated each second Harmonic magnitude of odd harmonics through the 25th can be displayed on the unit by repeatedly pressing the More key Combining the Harmonics key with the More key 119 harmonic measurements are available on the PowerSight display Harmonic Measurements in PSM The consumption data log can record the average THD F of each phase of voltage and each phase of current for each logging 84 period The summary values at the top of the screen are the average of all the values shown on the screen When viewing a consumption waveform transforming it into a harmonic graph presents a bar chart showing the relative magnitude of each of the first 50 harmonics The THD F is listed at the lower right Transforming a consumption waveform into harmonic data presents a chart of the magnitu
109. is fully operational and usually has sufficient storage without the removable memory Installation of the card is simple Simply push it into the slot on the right side of the meter Insert it so that the top of the card is visible as you look down on the face of the meter It cannot insert fully if it is upside down To remove the card you can leverage it out with a fingernail or grasp between finger tips and pull or use needle nose pliers if wearing gloves If the feature is not enabled on your meter it will be a free upgrade when supporting firmware becomes available Operation and Limitations Whenever a memory card is inserted into your meter it automatically gets updated with all the data that is on the meter When the card is inserted the meter will display Memory Card Present When it is removed the display will be Memory Card Removed lf the display ever says Insert Memory Card Again remove the card if it is already mounted and then insert it firmly back into the slot 39 Do not insert or remove a memory card while the meter is monitoring this limitation will be removed when supporting firmware becomes available and will be a free upgrade Generally any SD or MMC memory card that is from 64 MB through 2 GB in size will work in the meter If it does not the meter will display Incompatible Format The meter will not write over existing files and pictures on the memory card so memor
110. is one of the fields you can change when you set up a report 74 Demand Period Measurements Utilities typically evaluate energy usage over fixed increments of time such as 15 minute intervals These time intervals are called demand periods The average power consumed during each demand period is called the demand of that period Typically the utility will look for the demand period with the greatest demand over a period of time such as a month and call this the peak demand period The demand of that period is the peak demand The utility may then present a surcharge on the user s bill based on the peak demand For this reason power users have an incentive to determine Peak demand Peak demand period Demand Period Measurements in PowerSight During monitoring of energy consumption the peak demand period is constantly updated The logging interval is used as the demand period so if the logging period is set to 15 minutes the demand periods will also be 15 minute periods Thus if a meter whose logging interval is set for 15 minutes starts monitoring at 7 00 A M it will update the demand period at 7 15 7 30 7 45 8 00 and so on If the most power was consumed between 7 45 and 8 00 then the demand period will be displayed as 7 45 Note that even if the power peaked briefly at 7 29 the demand period would still be reported as 7 45 since more energy was consumed over that 15 minute period To see wh
111. layed in PSM by using the remote control feature In addition our Report Generator software will present maximum minimum and average true power and apparent power of each phase and of all phases during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change between the two intervals For instance if a comparison report is chosen and Wtotal average is 480 W during the first interval and 478 W during the second interval then the report would show Before After Units Change Change Power Factor Measurements Power factor is often misunderstood The definition of power factor is the ratio of true power in watts to apparent power in VA But it is often used as an indication of how much current lags voltage in a circuit When no harmonics are present power factor does this well When harmonics are present there is no necessary relationship between power factor and current phase lag To help differentiate what is meant by power factor we talk of two different power factor measurement types true power factor and displacement power factor PowerSight measures both of these True power factor as its name implies is the true measurement of power factor It is the ratio of true power over apparent power P oar TPF or TPF When this ratio is less than 1 00 app then reactive power is present Reactive powe
112. ll be conducted and displayed On the other hanad if you are looking at a stored data file clicking on this icon will allow you to choose other data files of a similar type to view Reading Graphs and Waveforms Graphs and waveforms have similarities in the ways they are presented in order to quickly understand what is displayed Examples of the various graphs and what the various sections mean follow 1 The name of the file that is being displayed appears in the top border If you want to determine what directory the file is in click on File and then Save As to see the directory location 2 The name of the graph or waveform set appears at the top of the graphical portion of the screen The default name is the name of the file including the directory path You can enter a name of your choice by clicking View and then Labels 3 The name and metric of the vertical axis tells what type of measurement is being displayed and what the unit of measurement is When the graph combines different types of measurements such as when displaying voltage and current 140 there will be a vertical name and metric on the left side and a different one on the right side of the graph The horizontal axis is usually time Logs have time and date stamps to help determine when events occurred and how long they lasted Other graphs and waveforms have metrics of seconds or milliseconds Displays of triggered graphs or
113. lready been covered earlier in the manual Refer to the Measurement Modes chapter Saving and Retrieving Data Setups to File or PowerSight When you create a customized data setup it is usually a good idea to save the setup to a file To do this click on Save to File and give it a filename A Save Log Setup Get Log Setup good practice is to give Save to PowerSight From PowerSight the setup a name that will Save toFile Erom File be displayed The This Setup s name is This Setup is example says CUSTOM Custom CUSTOM but a typical one might be Motors The name can only be eight characters long Although this name that is embedded into the setup is limited to 8 characters the filename that the setup is stored under can be of any length that is acceptable to Windows To load the setup into PowerSight click on Save to PowerSight To retrieve a setup file click on From File and select the specific setup you wish to use To retrieve the setup presently in a connected PowerSight click on From PowerSight When the Data Setup menu is first entered the setup that is shown is the setup from the connected PowerSight If no PowerSight is connected the initial setup is the Default setup The default setup can always be recovered by clicking on Defaults Loading Data Setups from the Memory Card SD Card There are times that is is useful to load a data setup into the meter
114. ltage probes A typical metering circuit showing PowerSight connected is shown in figure 9 This circuit has three CTs and if higher voltage is present may have three PTs Itis typical for metering a three phase four wire wye type service PowerSight The currents flowing to the load are considered the primary currents Those currents are stepped down by each CT toa secondary current Fig 9 Recommended Connections to according to eshte the ratio of the 3 CT 3 PT Metering Circuit CT printed on its rating plate A typical value would be 600 5 120 1 The output of each CT must have some burden across it for the secondary current to flow The current probes of PowerSight are clamped around the secondary of each CT Make sure to use current probes that are suited for accurate measurement in the 0 25 5 amp range The HAS is best for this The HA1000 or HA100 may be acceptable depending on the current level Once the current probes are attached it is best to set the input ratios for each of the current probes see the Setting Input Ratios section This will allow the displayed values and logged values to reflect the primary current level instead of the secondary current level This in turn allows accurate power and cost readings without having to multiply the results times some ratio Remember that these ratios are reset to 1 1 whenever PowerSight is turned off Similarly the
115. ltages and currents are in phase and no harmonic currents are present reactive power is zero Peak demand of the demand period is an important measurement that is covered in the Demand Period Measurements section Power Measurements in PowerSight PowerSight performs all commonly desired power measurements Total true power watts or KW total reactive power VAR or KVAR and total apparent power VA or KVA measurements are available by simply pressing Power repeatedly The sequence of the display is KW gt KVAR gt KVA If energy consumption is being monitored the maximum minimum and average power is displayed by repeatedly pressing More after displaying the appropriate power type In this way by combining the Power and More keys there are 12 power measurements available For instance if the maximum reactive power is desired press Power to display watts Power to display VAR and then More to display maximum reactive power After showing the total VAR a summary of each phase s true power and VA power are shown 62 Any Display Other Than Power Power 4 alg More Wmax More Wymin More Wravg More ower ee Power Total VA More VA max More VA min More VA avg ore Power ee gt Power Total a More VAR max More varmin More VAR avg Mor Power Power 4 True
116. ltaneously The loads must all share the same neutral PowerSight voltage connection If the loads run off the same line voltage connect V1 V2 and V3 to the same hot wire l1 l2 and l3 serve the 3 loads This approach can also be used to evaluate the current of a 4th load but the power used by that load will not be calculated Neutral Fig 4 Multiple Single Phase Connections 18 In this configuration the voltage current and power of each load can be displayed directly or graphed on your PC using our PSM software Connecting to Split Phase Two Phase Power Fig 5 shows the recommended connections to a split phase system as found in commercial and residential facilities when Neutral measuring the supply to two single phase loads There are two Hot degrees out of phase with each other and sharing the same neutral Appliances such as ovens that require 240V will span across both hot wires When evaluating the Fig 5 Recommended Two Phase power for a Connections load spanning the two phases remove the VN voltage lead since it may affect the power factor readings of each phase In this configuration a reading of V1N is of hot neutral and Ven is hot2 neutral IN does not need to be connected and Vn should not be connected when the load spans the two phases The power associated with one hot is measured as phase 1 the power of the other hot is measured as phase 2 In phase
117. lue that is presented on the screen is the average of these readings for every cycle during the previous second The maximum value that is recorded into each record of the consumption log is the maximum of the once per second measurements during that logging period The minimum value that is recorded into each record of the consumption log is the minimum of the once per second measurements during that logging period To learn how to display the maximums minimums and averages since the beginning of monitoring on your PowerSight refer to the various sections on measurement types The maximums minimums and averages of each logging period are logged This is the act of recording summarizing information once every logging period With PowerSight the logging period is set by the 106 user whereas the measurement updating period is always once per second This insures that you don t miss valuable information related to the actual power used and the maximums and minimums present After you direct PowerSight to stop monitoring all the information remains available to you in the data log that is in PowerSight The contents of the data log are not displayed on PowerSight s display To obtain the information it must be uploaded from PowerSight to your computer using the PSM software The data is recorded into a file in a plain text format that may be easily imported into spreadsheets databases and word processors In addition PSM ha
118. mpare equal before and after timeframes When you are done entering the information click on Next If you are doing a comparison report another Datalog Information screen will appear In this screen specify what log is to be used for the after column of the comparison report Adjust the starting and ending records to use just as you did in the previous screen If you need to go back and amend your previous entries just click on the Back button and make your changes When you are done entering the information of this screen click on Next The next screen is the Log Details screen Each measurement type that can be Teo included in the report ovang has its own checkbox They are organized in a matrix that allows ease of locating a specific signal and ease in enabling or disabling entire columns or phases of them Any checkbox with a check in it will appear in the report qaqaqa g THO Qmerd tL maaa a a LL aa L L 125 The Log Details screen also has a checkbox to direct graphs to be included in the report If this box is checked each variable will have a graph only included The data of the graph will only be during the time period specified in the Datalog Information screen A word of caution here if your computer is under powered or has limited extended memory and you select all of the variable types and checkmark either of the graphics boxes the report program ma
119. n where nnnnn is the serial number of your meter If it does not appear click on an option like Discover to find any Bluetooth devices that are in range After as much as 1 minute all Bluetooth devices that are detected and available are displayed on the screen An icon for your meter should be one of them Double click on the icon for your meter If the meter has been paired with your computer you will see an icon of a serial cable connector labeled something like SPP Slave on PS3500 nnnnn where the last characters are the serial number for your meter discussed above Double click on this to establish a communications path between Windows and the meter or right click and click on Connect The name of the communications channel to use with your meter will be displayed such as COM7 If the meter has not been paired you will be asked to enter a PIN code Enter 0000 four zeros and click on Initiate Pairing Through pairing your computer sets up a communication channel with the meter If pairing is successful you may be asked what service you wish to access on the meter If so you will click the box for SPP Slave A screen will open identifying a COM Port that is being assigned to communications with the meter such as 36 COM7 Remember this port identifier you will need it for the next step connecting to your PSM software Note Whenever you close PSM or turn your PowerSight mete
120. n override this default name by typing the desired name into the Final File Name box The folder location of the converted file appears in the File Path box You can override this location and the path you enter becomes the new default path 41 Verifying Connections Using PowerSight SureStart Importance of Verifying Connections and Wiring After connecting to power it is wise to check that everything is connected correctly and that the wiring of the facility is correct There are two primary methods for doing this You may either send waveforms from PowerSight to your PC and visually check that all connections are correct and all signal levels and shapes appear correct see the Verifying Connections using PSM section or you can easily use the patented SureStart feature within PowerSight to quickly and easily do this The importance of having all connections and settings correct cannot be overstated If connections are not correct important decisions may be made based on erroneous data or logging sessions lasting several weeks may have to be repeated Common connection and setup errors and their negative results are Current probe attached backwards Normally if current probes are attached backwards PowerSight senses this and turns them around in software so you still get the correct power readings This is one of the features that makes PowerSight easy to use However if you view waveforms and a current probe
121. nd contact information about the preparer of the report so the reader can contact him When you are done entering the information click on Next Droste a lepor pa Repar tpat contitt of ahat surerowy ct A e oF a comparen A companion can etter be between hao leg s he same The Report Type Selection screen will now be displayed You must choose between doing a summary report or a comparison report A summary report provides a concise summary of data from one consumption log This is great for preparing a report of a load study A comparison report compares 124 data from one log to the data of another log Or it compares one section of data of a log to another section of data in the same log This type of report is great for CS preparing before and after reports A a to verify energy savings or to prepare ramer tah longitudinal reports documenting TE how performance or load has im changed over time When you are gee done entering the information click on Next The next screen is a Datalog Information screen In this screen specify what log is to be used for the summary report or for the before column of the comparison report If you do not want to use all the records of the log select a starting time and or an ending time in order to discard records outside of those times This can be especially important in comparison reports because you generally want to co
122. nerated to describe a continuously varying current The beauty of RMS current is that in power calculations it makes a contribution to power roughly equivalent to a DC current of the same magnitude RMS current is defined as the square root of the mean of the square of the instantaneous current over one ye cycle of the fundamental frequency Jrms ere When measuring DC amps the RMS value is the same as the DC value Current crest factor is the ratio of peak current of a cycle over the RMS current of the same cycle Icf Ipk Irms A perfect sine wave has a crest factor of 1 414 v2 In the PS3500 the present current is the RMS current calculated for the most recent second Maximum minimum and average are based on these one second measurements 57 Current Measurements in PowerSight PowerSight performs all commonly desired measurements of current The RMS root mean square currents of phases 1 2 and 3 and of the neutral line are available by simply pressing Current repeatedly The sequence of the display is l1 gt l2 gt l3 gt IN If energy consumption is being monitored the maximum minimum and average RMS current is displayed by repeatedly pressing More after displaying the appropriate present current In this way by combining the Current and More keys there are 16 RMS current measurements available Any Display Other Than Current Curr Curr More More More
123. neutral measurement 19 mode the voltage readings will be from hot to neutral If you change the measurement mode to phase phase V12 will be the hot to hot voltage that serves the high power appliance Connecting to Three Phase Four Wire Wye Power Figure 6 presents the recommended Phase 1 connections to Neutral a three phase system with voltages referenced to neutral a phase neutral or three phase four wire wye configuration Phase 3 PowerSight Be sure to follow the safety warnings of the previous sections before making the Fig 6 Recommended Three Phase Wye connections Connections Although the current of each phase is carried by neutral neutral current is generally relatively small since the currents of the 3 phases largely cancel each other in the neutral leg In a perfectly balanced system the current in neutral would be zero In a wye system each phase is essentially independent of each other For this reason the power factor of each phase has direct meaning but the total power factor is less meaningful Most commercial wiring and newer industrial wiring is in this wye configuration 20 Connecting to Three Phase Three Wire Delta Power Figure 7 presents the recommended connections to a three phase system with voltages referenced to each other instead of to neutral This is a delta phase phase or three phase three wire configuration Be sure to follo
124. ng setup is Logging period 3 minutes This means that every 3 minutes a new record is created that includes all the variables that are requested by the setup For instance if maximum l1 current was one of the requested variables each record would include the maximum l current of the previous 180 seconds 3 minutes After one hour there would be 20 records 60 2 20 in the log Three minute logging period was chosen because it allows you to log for a reasonably long period of time with a reasonably short period between records Of course your needs may vary from this in which case you can easily customize the setup This is discussed in the Setting the Logging Period section Log start mode Start manually Other modes are available and are discussed in the Starting Data Logging section Log stop mode Don t stop This means that if the log fills up it will continue receiving new data which will be written over the oldest data This is discussed further in the Stopping Data Logging section Frequency mode Variable 45 66Hz This allows PowerSight to measure the frequency every second and perform measurements whenever the fundamental frequency is in that range If you do not need to measure varying frequency it is recommended that you change the mode to one of the fixed frequency modes Voltage mode Phase Phase Power mode Always positive Unless you are de
125. nit Port box and select the ea COM port that has been Serial Number 41356 dedicated to your meter by the operating system see the previous section Also verify that the communications rate is set for 57 6 kbps Then click on OK For instance if the Bluetooth software in your computer advised you that COMM7 was dedicated to the Bluetooth communications 37 with your meter then click on the CON7 entry and then OK PSM wili saem sees tue C automatically attempt to a a connect to your meter at ias this point If it is Help successful the communications status box with display a yellow banner with the words Attempting to Connect After a few seconds the banner should turn green with the words Unit Connected in it At this point PSM is in direct communications with the meter 38 Using Removable Memory Cards Introduction Your meter has adequate internal memory storage for most normal operating situations However the ability to use a removable memory card has several significant advantages extra storage for very long monitoring sessions faster transfer of data from meter to computer backup of data that is in the meter and on your computer non volatile storage of data about specific jobs or equipment Your meter is designed to use SD or MMC memory cards This capability provides essentially unlimited storage capabilities for your meter Your meter
126. nnected between it and the power source The fuses are the only circuit protection for the LDC When the input side of the LDC is fully connected properly plug the long DC output plug into the DC input jack of PowerSight The 29 red charging indicator near the jack will light up if everything is operating and connected properly Note If a fuse is burned out or missing it will appear that there is no voltage at the source Verify that the fuses are working properly before assuming that the source is dead Injury may occur if you wrongly assume that the source is deactivated Measuring Multiple Parallel Conductors A COMMON Prahlar with Phase 4 Conductors measuring large currents arises when the current of each phase is carried by several parallel conductors Probe For instance the phase 1 l current may be carried in 4 Phase 2 4 Conductors parallel conductors as are phases 2 and 3 resulting in 12 conductors to measure In this case the work around Probe is to clamp onto just one of 2 the conductors of each Phase 3 4 Conductors phase and enter an input ratio to record the correct total current of each phase A fast way of doing this is to enter an input ratio of 1 4 for each phase in the example of 4 parallel conductors This may offer adequate accuracy for your needs However experience shows that although the current in each conductor of the same phase is similar in size they are typically NOT iden
127. nough to have at least 10 records in the log before you end logging Less than 10 records will not look presentable when graphed Generally strive to have at least 100 records in a consumption log That would allow for 10 data points in each column of the graph When PowerSight is at the site where it will be used 1 Hook up the voltage leads and current probes to the circuit being monitored referring to the appropriate diagrams of the Connecting to PowerSight chapter Insert the power plug into the 12VDC jack on the right side of the meter as described in the Connecting to Power section Power for the meter will come from a wall charger or from an LDC line to DC converter If you have an LDC accessory attach its leads as shown in the Connecting to Line To DC 136 LDC Converter Accessory section If you are going to monitor just a few hours and the meter s internal battery is fully charged you can skip this step Turn PowerSight on Enter PSM and note that PSM has successfully connected to PowerSight This will be clear by the box on the main menu with the words Unit Connected appearing within a large green banner Note that the box also says Serial Comm enabled and Datalogging enabled We recommend that you either run through the checkout connections feature explained in the Checking out Connections using PowerSight section or take a snapshot of the waveforms and look at them for errors if you have a com
128. nt types then the maximum power of all of the cycles during the preceding 180 seconds will be recorded into the log Since the data log fills up one record at a time if the logging period is set for a large number it will take quite a long time to fill the log whereas if it is set for a small number it can be filled much faster The log capacity is displayed in the secs left of the Data en Ea H Coes son Coes son Setup menu just above the selection area for logging period In the example shown p Operation Setup the logging period is set for 3 Logging Period minutes Units minutes and the time to completely fill the log is 2 083 days m Monitoring Activities To change the logging period from minutes to seconds or from seconds to minutes click on the drop down box at the right end of the Logging Period line in the data setup To change the number of minutes or seconds simply change the number to what you want When you are satisfied you can save the custom setup to a file or send it to the attached PowerSight You can also change the logging period from the keyboard of your meter Click on Setup one or more times until Log Interval is displayed on the meter If you wish to change the displayed interval of time press No Then use the Yes and No keys to select whether to use seconds or minutes and to accept the final 115 entry To change the logging interval number use the numeric
129. o Measure 4160V Service on the installation CD for more information Alternatively you can hook up to metering PTs and enter their ratios into PowerSight in order to record the primary voltage 148 14 How do I measure a large load carried by 2 or more parallel conductors There are two approaches you can use Either use one of our flexible current probes they are 24 inches long and can form a circle of 7 inches or clamp your current probe around one of the conductors and enter input ratios to read and record the correct value See the section on Measuring Multiple Parallel Conductors for details on how to do this 149 Overview of the Keypad Functions One of the best features of PowerSight IS its user eee More interface A surprising 2 re amount of capability is Volt come pai Cost quickly available through 4 the touch of a button Freq Sae Ere jl Period Time We have attempted to ws once yz R Yes No ncremen Decrement Capture make the interface Accept Reject aoromont Pan Waveforms intuitive and flexible 7 PEAR e a min Many functions can be ee tE _O accomplished in several ways PS3500 Keypad Here is a quick overview of the functions of each key Monitoring On Off for starting or stopping of monitoring of consumption or absolute disturbances Verify Connections uses SureStart to determine what potential errors in connections and settings exist Tr
130. odes Frequency measurement modes Power measurement modes Defining inputs All measurement modes will be explained in the next few sections The Measure Mode key allows you to make these basic choices only when needed As new measurement capabilities are added to PowerSight the Measure Mode key will keep the product easy to use Phase Neutral vs Phase Phase vs 2 Current Mode There are three voltage measurement modes Phase Phase Phase Neutral 2 Current Mode When measuring voltages you either need them recorded in phase neutral format or in phase phase format A phase neutral voltage reading is the difference in potential between one of the phase inputs V1 V2 and V3 and the neutral input VN They are presented as Vin Van and V3n A phase phase voltage reading is the difference in potential between two phase inputs They are presented as V12 V23 and V31 87 Wye systems are usually measured using phase neutral voltages Delta systems are usually measured using phase phase voltages On occasion you may wish to measure phase phase voltages in a wye system if the equipment that you are monitoring bridges two hot voltages like a single phase air conditioner running at 240 V In a perfectly balanced three phase system the phase neutral voltage is equal to the phase phase voltage divided by the square root of 3 Vpn Vpp 1 732 In practice systems are usually not balanced but this gives an idea of wh
131. oint is 5211 watts whereas the overall average of the average phase 3 power points that are displayed is 4030 1 watts Notice that the oveall measurement has changed from 3511 6 to 4030 1 because it only refers to the data that is shown When you print what is displayed the cursor and all values within parentheses wil not appear on the printout It is important to note that when a measurement type that is graphed is an average such as power Phase 3 Avg the summary value at the top is the average of all the averages displayed When it is a maximum such as V12 max the summary value at the top is the maximum of all the maximums of the data appearing on the screen When it is a minimum such as l2 min it is the mimimum of all the minimums shown Another helpful feature for graphical analysis is the ability to pan Notice on the zoomed in example above that there are scroll bars circled one at the bottom and one at the far right You can scan the data at a magnified level by either doing a left click and hold on one of the slides and then dragging it either direction in the scroll bar or by clicking on the arrowheads at either end of the scroll bar This can be very helpful for finding oddities or spotting small data patterns 143 Determining Log Capacity There is no simple formula for estimating the capacity of a data log but there is a simple way of determining the capacity by entering th
132. on the cursor under a digit that you wish to change Repeatedly press Incre or Decre until the digit is what you wish it to be Do this for each digit you wish to change and then press the Yes Accept key to save the new time or date Changing the initial display or greeting is accomplished by using lt or gt and Incre and Decre to modify individual characters This approach although tedious is effective in customizing the instrument for your use If the PC Control Analysis Option is available the greeting may be quickly typed directly into the PC and then sent to PowerSight via the communications cable When repeatedly pressing Incre the sequence that a character goes through is A gt B gt C gt gt X gt Y gt Z gt gt a gt b gt C gt gt x gt y gt Z gt 0 gt 1 gt 2 gt gt 7 gt 8 gt 9 gt gt gt 1 gt j gt gt gt gt gt gt amp Pressing Decre modifies the character in the opposite direction The communications rate can be changed from 57 600 to 115 200 bits per second by repeatedly pressing No Reject Pressing Yes Accept accepts whatever rate is displayed Generally 57 600 bps works under all circumstances Enabling Disabling the 2 current approach also known as the 2 wattmeter power method is left at the end of the choices since it is unlikely to ever by used The advantages and disadvantages of the 2 current mode were presented in the Measurement Modes section To avoid the confusion tha
133. ons to a 2CT 2PT Metering Circuit section For current connections connect the phase 1 and phase 3 probes as shown in figure 10 and attach the phase 2 current probe to the phase 2 CT You will not need to operate in the 2 Current Probe mode of power measurement since there are 3 currents being monitored Connecting to Line To DC LDC Converter Accessory The Line To DC Converter accessory order number LDC4 converts the voltage that is being monitored into DC voltage to run and charge PowerSight The applications of this option are Electrical room monitoring where a 120V outlet jack is not available for your charger Monitoring where an extension cord from a 120V outlet jack would be a safety hazard Monitoring on a rooftop power pole or power pad Reliable charging for the meter when there is concern that an available 120V outlet jack may be switched off by other personnel Simplified monitoring connections no need to think about powering PowerSight when installed inside a CASW weather resistant case Figure 11 shows the correct method of connecting the LDC to PowerSight The LDC comes with two long red input leads that end with a stackable safety banana plugs These stackable plugs are to be inserted directly into two of the inputs of PowerSight If you are monitoring power without a neutral we recommend plugging them into the V1 and V2 inputs If an external neutral is present we recommend plugging them into the V1
134. or 50 milliseconds This time coincident snapshot of 7 waveforms is called a waveform set Please Note When operating in one of the 400 Hz operating modes the waveforms are recorded for 7 msec to give sufficient resolution to these much faster frequencies You can capture a waveform set at anytime either using the keypad of PowerSight or PSM if PowerSight is connected To save a waveform set in PowerSight without using PSM press the Wave key at the lower right of the keypad The number that is 98 assigned to the waveform set is then shown on the display The waveform data storage space within PowerSight is separate from the space reserved for other types of data Therefore it does not limit the size of your logs or write over any other type of data Whenever you store a waveform set in PowerSight it writes over the oldest waveform set that is stored in the meter One of the wavesets waveset1 is a special waveset It is automatically captured by PowerSight when you initiate monitoring The benefit of doing this is you can always retrieve a look at what the waveforms were like when monitoring began There is room for 3 more wavesets in PowerSight for a total of 4 To use PSM to capture a waveform ar set and have it stored in the connected PowerSight meter click on Remote Conrol at the main menu and then click on the Wave key of the representation of the PowerSight keyboard on the screen When PSM is connecte
135. os are valuable Ifa large current is carried by 2 or more parallel conductors you can clamp onto 1 conductor enter in the ratio for instance 4 total conductors to 1 measured conductor and thereby record the total power without clamping around all the conductors However before you use this approach verify that each conductor is carrying the same amount of current It s not uncommon for parallel conductors to carry different loads when high currents are involved If the loads are different in each conductor you may enter the appropriate input ratio For instance if the measured total of 4 cables is 2005 amps and the one cable you will monitor carries 492 of the amps you can enter the ratio 2005 492 and all readings will be correct There are cases where you may wish to measure very small currents with a large probe In order to improve the accuracy of the readings you may wish to clamp onto several turns of the wire This essentially amplifies the signal and boosts the signal to noise ratio For instance if you were reading 1 amp with an HA1000 probe you might clamp onto 10 turns of the wire to boost the signal to 10 amps If you then entered a ratio of 1 10 the readings will be scaled correctly and be more accurate Finally in measuring high voltages if you use a high voltage probe enter the ratio of the probe for instance 100 1 and record the actual voltage being measured Using these techniques you can measure anyth
136. osen and TPF1 is 0 48 during the first interval and 0 48 during the second interval then the report would show Betore ater nits Before Change Change Power Factor Phase 1 Energy Measurements The energy consumed is defined as the sum of the true power over time E f r xt If measurements are taken every second in units of watts then the KWH consumed during that secondis E W 1000 3600 The energy used over a longer time would be the sum of each of these energy measurements of each second rue Useful measurements and estimates of energy are Real energy consumed Reactive energy consumed Estimated energy consumed per hour Estimated energy consumed per month Estimated energy consumed per year The real energy consumed is the amount of energy actually consumed during a period of time such as since monitoring started or during a specific week For instance if the sum of the KWH of each cycle totals to 5 KWH after 10 minutes of monitoring then the energy consumed during the monitoring session is 5 KWH The PS3500 calculates KWH once a second The reactive energy consumed is determined the same as KWH except VAR measurements are used instead of watts The estimated energy consumed per hour is the total energy consumed divided by the hours of monitoring For instance if 5 70 KWH is consumed over a 10 minute period then the estimated 60 energy consumed per hour is KWH 5 o 30KWH est h
137. played on PowerSight may be different from those in the log since the monitoring session is for a longer period of time than the logging session The time remaining to fill the consumption log is how much longer the logging session can continue before the log is filled and logging either stops or begins writing over the oldest data The record capacity of the log is how many records can be recorded before the log fills The default number for consumption logging is 4569 records This number can be changed by changing the variables selected to be recorded in the log using the Data Setup feature of PSM see the Setting Measurement Types section or by allocating more or less memory to consumption logging 80 The number of records used in the log is a display of how many records have been saved since logging began When displayed it will always be accompanied by the record capacity of the log The time and date that monitoring began is the internal clock reading of when monitoring began If the unit is enabled to do logging the first record will be recorded one logging period after this start time The programmed start time of monitoring is a time and date that is programmed in the Data Setup feature of the PSM software see the Starting Data Logging section When the clock inside PowerSight reaches that time and date monitoring begins and the old log is erased The programmed stop time of monitoring is a time and date that is prog
138. pressing Setup several times until the present current setting is displayed To change this setting press No Reject and follow the instructions to enter the new setting When the new setting is entered correctly press Yes Accept Note that this value is only used for the current in phase 1 Deleting Data in the Meter Although old logs and wavesets are written over by new ones you may wish to erase the data in the meter so it cannot be retrieved To delete the data press the Setup key of your meter several times until the message Delete Data in Meter is displayed Press the Yes key and the internal data is permanently destroyed Administrative Functions A collection of functions that are neither measurements nor calibrations are collected under the heading of administrative functions They include Identifying the unit Viewing the options that are loaded Reporting the warranty expiration date Changing the time and date Changing the initial displayed greeting Setting the communications rate Enabling Disabling 2 Current Mode Enabling debug displays All administrative functions are available by pressing Admin and following the directions 129 Identifying the unit results in the following being displayed Serial number of the unit its unique identity Digital Processing revision level algorithms used for measurement Firmware revision level what level of software is active within PowerS
139. puter handy as described in the Checking out Connections using PSM section If you intend to have PowerSight start monitoring by direct command via the keypad or via PSM this is the time to do it Otherwise it will start when the programmed start time occurs When satisfied that all is correct download waveset1 from PowerSight see the Receiving Stored Consumption Waveforms section giving it a unique filename so you have a record of the signals just prior to starting logging Waveset1 is stored inside PowerSight automatically when you start monitoring When you are done logging capture another set of waveforms giving it a unique name Combining this waveset with the one that was captured when logging began gives a before and after picture of the power for use in later presentations or as a troubleshooting aid if the data log appears to contain bad data 137 Working with Graphs and Waveforms General It is important to us to allow you to work with and manipulate the various graphs and waveform presentations in PSM We try to make the features that accomplish this look and feel the same throughout the program so you can handle all waveforms and graphs in the same way as much as possible This is one of the areas in which we continually improve the product and our software updates will allow you to benefit from these improvements over time This section presents the general methods we have for analyzing manipulating and presenting
140. questions that need to be answered First are the sizes of each EEEIEE of the three phases omnes i H reasonable depending on ait the type of load currents of each phase may be very similar or fairly different The RMS value of each waveform is listed in the heading of the graph such as l1 with 136 5 beneath it indicating that l1 136 5 amps similar to how they are presented for voltage as seen in the Checking Voltage Levels section Also check the shapes of the current waveforms Some of the more common current 50 waveforms that may be seen are shown in the Checking Phase Lag Using PSM section below Checking Phase Sequence Using PSM While still viewing all current waveforms of a three phase system notice how they reach their peak value Each of the peaks should be the same distance from each other similar to as shown in the Checking Voltage Sequence Using PSM section This even spacing must continue across the screen In a three phase system there will be a constant 120 degrees apart 5 5 msec for 60 Hz 6 3 msec for 50 Hz If one or two of the current probes is backwards the peaks will not be evenly spaced If that is the case determine which probe can be turned around to get the spacing correct After turning it around and verifying that the spacing is now correct determine in what order the currents reach their peaks This sequence must be in the same order as was seen for the
141. r The estimated energy consumed per year is the total energy consumed divided by the fraction of a year that monitoring has proceeded For instance if 5 KWH is consumed over a 10 minute period then the estimated energy consumed per year is KWH 5x aaa 262 800KWH 262 8 megawatt est yr hours The estimated energy consumed per month is the estimated energy consumed during a year divided by 12 For instance if 5 KWH is consumed over a 10 minute period then the estimated energy consumed per month is KWH ssi imo 2 Sne 21 900KWH 21 9 megawatt x hours Energy Measurements in PowerSight PowerSight performs all commonly desired energy measurements When monitoring consumption the actual energy consumed is displayed by pressing Energy Based on the history of consumption estimates of energy use per hour energy use per month and energy use per year are calculated each second These estimates are available by repeatedly pressing More In this way by combining the Energy and More keys there are 4 energy measurements available For instance if the estimated energy use per year is desired press Energy to display total energy consumed More to display KWH hour More to display KWH month and then More to display KWH year 71 Energy Measurements in PSM PSM presents all commonly desired energy measurements When displaying a data log containing power information P
142. r off you will break the connection between your meter and Windows Once your meter is turned on you will need to double click on one of the Bluetooth icons on your desktop to re connect with Windows and then attempt to re connect to the meter via PSM If you are asked to enter a PIN enter 0000 four zeros Other than this awkwardness you will find Bluetooth wireless communications to be very beneficial Step 2 Connecting to the Meter in PSM the Application Level Open your PSM software application If it connects properly you will see a green box appear with the words Unit Connected in it If this automatic connection failed click on the Setup Communication button and set the Serial Port for the COM port that is assigned the connection with your meter such as COM7 Click OK and the connection between the application and your meter should be successful Normally you will not have to change this port assignment again Now that a Bluetooth communications channel has been established by the operating system PSM can be directed to use that communications channel in order to talk with the meter Open your PSM software application If it connects properly you will see a green box appear with the words Unit Connected in it and you are done If not click on the Setup F er Communications button version 3 TF un S 2004 In the resulting dialogue Goese Pss z box click on the Serial ay RIL Cormect to U
143. r may be the result of current lagging voltage due to the inductance of the circuit It 64 may also be the result of delayed harmonic currents that result form small driving harmonic voltages A typical electronic load may have a power factor of 0 70 and yet the current may be perfectly in phase with the voltage No amount of capacitance can raise this power factor in fact it will lower it However when harmonics are not present the true power factor turns out to be equal to the cosine of the angle of phase lag of the current No amount of harmonic filtering will raise this power factor because it has no relationship to harmonics True power factor is 1 00 for a purely DC system Displacement power factor is actually not a power factor measurement It is the cosine of the number of degrees that the current of the fundamental frequency lags the voltage of the fundamental frequency DPF cos where is the phase lag of current To do this measurement properly PowerSight uses Fast Fourier Transform FFT analysis to separate the harmonic currents and voltages from the fundamental current and voltage and to do a precise measurement of the angle between those fundamentals The resulting phase angle is then transformed using its inverse cosine to obtain the displacement power factor This value is useful for deciding how much capacitance to add to a circuit to bring current into phase with voltage thereby raising the displacement power
144. r of an air conditioning unit and of a zoomed in portion of the same log The Pamet art Vara merer FT Fines art Manaan meny ala n r s el H 5 Piani al Zoom In and Zoom Out icons are circled The example on the left does a good job of communicating the overall operation of the air handling unit that was being monitored There is a circled area of special interest in this graph where the power has several repetitive peaks The example on the right does a good job of focusing in on this area of particular interest 142 The example on the left above showing the full log has several features of interest highlighted Notice that the cursor is positioned near the center of the display The data associated with that point appears in the heading in parentheses Specifically the cursor is positioned on Record 224 of the log The timestamp of that point is 6 41 00 on 9 24 04 The value of the average phase 3 power for that record is 3450 watts whereas the average of all the average phase 3 power points that are displayed is 3511 6 watts The example on the right above showing the zoomed in portion of the sample log has the cursor positioned above a special point of interest a point where one of the peaks in the power occurs Looking at the circled information you can quickly identify that the data at that point is contained in record 90 which started at 18 24 00 on 9 23 04 and the value of the average Phase 3 power at that p
145. rammed by the Data Setup feature of the PSM software see the Stopping Data Logging section When the clock inside PowerSight reaches that time and date monitoring is stopped Time and Capacity In any display except Time Measurements in PowerSight These various ngorta Se o measurements are displayed by ins ors pushing the once each 6 seconds Time and or pom More key once each 6 seconds repeatedly as faota shown to the right once each 6 seconds gomg Programmed Stop Time once each 6 seconds programmed Stop Date User Interface for Time and Capacity Measurements 81 Time and Capacity Measurements in PSM The Data Setup window allows you to review and change many of the time and capacity measurements The time capacity of the consumption log the record capacity of all the logs and the programmed start and stop time of monitoring if one exists can be reviewed and changed The number of records used in any of the log types can be determined by attempting to receive the log data from an attached PowerSight The measurements of time and capacity presented on the PS3500 can also be displayed in PSM by using the remote control feature Harmonic Measurements French mathematician Jean Baptiste Fourier determined 150 years ago that any periodic waveform can be mathematically defined to be the sum of a fundamental frequency equal to the periodic rate and additional frequencies that are multipl
146. reen being shown In the Types to View section click on Stored Waveforms if necessary to select that choice A list will appear of all wavesets located in the directory shown in the Look In box If you wish to look in a different directory use the standard Windows methods for changing the directory that is shown Next select a specific waveset by double clicking on it Primary Choice Secondary Choice iew When you select a 7 ULES waveset to view the aei 2v3 Cea Al ae Select Signals to View VotageandCunent 3V31 window pops open You __tee_ make a primary choice of pj aj oie alee 3 Al ela a eo voltage current or voltage and current and then you make a secondary choice of which phase or phases to view then click on OK There is a wealth of features related to viewing and analyzing waveforms Voltage and current can be viewed together and multiple phases of signals can be viewed together Portions of waveforms can be zoomed into and panned left right or up down Refer to the Working with Graphs and Wavefoms section to learn more about available presentation and analysis features You can easily transform any waveform into either a graph of harmonic data or a view the raw data for each harmonic and K factor To convert a waveform time domain representation into a harmonic graph frequency domain representation click on the RMS Value 206
147. ressed in degrees 360 degrees to complete one cycle Some frequency measurements of interest are Present frequency Maximum frequency Minimum frequency Average frequency The present frequency is the average frequency of all of the cycles of the most recent second The maximum frequency is the frequency of the shortest cycle fastest repeat time during the time of interest The minimum frequency is the frequency of the longest cycle slowest repeat time during the time of interest The average frequency is the average frequency of all the cycles during the time of interest When operating in the variable frequency modes the PS3500 determines the fundamental frequency once each second The bands of frequencies that it can measure are from 45 to 66 Hz and from 360 to 440 Hz Harmonics of these fundamental frequencies are measured to 3 300 Hz 76 Frequency Measurements in PowerSight PowerSight performs all commonly desired frequency measurements when operating in the variable frequency measurement mode The fundamental frequency is displayed by pressing Freq If consumption is being monitored the maximum minimum and average frequency is displayed by repeatedly pressing More after displaying the frequency For instance if the minimum frequency since monitoring began is desired press Freq to display fundamental frequency More to display maximum frequency and then More to display minimum frequenc
148. rvals For instance if a comparison report is chosen and V12 average is 480 V during the first interval and 478 V during the second interval then the report would show Before Change Change Voltage Phase 1 Avg 480 478 volts 2 0 0 4 The total harmonic distortion THD of voltages is displayed using the THD function discussed later in this chapter Current Measurements Current is the flow of charged particles usually electrons through a point Current is measured in units of amps which is short for amperes and its symbol is commonly I In AC circuits current often varies continuously and always reverses direction In DC circuits it is usually steady and never reverses direction If the current changes in a repeating fashion then it is called a periodic function There are several key current measurements Instantaneous current Peak current RMS current Current crest factor 56 Maximum current Minimum current Average current Present current Current inrush swell or surge Current dip sag Current transient The instantaneous current is simply the current passing through a point at an instant of time When the current is graphed over time the graph is called the current waveform The peak current Ipk is the highest instantaneous current over a period of time A measure that changes continuously is of limited use A far more useful measurement is RMS current wherein a single number is ge
149. s extensive graphing and printing capabilities Only one data log exists within PowerSight at any given time Thus while logging of consumption is proceeding the data log is growing by one record after each log interval When logging is stopped the data log no longer grows but it is still available The data is preserved even if the unit is turned on and off repeatedly While monitoring is in progress asterisks appear on both ends of the bottom line of the display They flash on and off each second to assure you that monitoring is in progress When monitoring stops you are assured that monitoring has ended by Wee the absence of the flashing asterisks Please Note Before you start monitoring verify that PowerSight s wall charger is charging the internal batteries The internal batteries won t operate PowerSight for many hours without assistance Verify that the red charging indicator light is shining through its hole near the DC input jack Basic Consumption Data Logging The basic PowerSight unit logs aspects of energy consumption as described in the previous section There are many different modes of operation and data logging options available to ensure that you can measure and record just about anything you need to To simplify things we provide a default data logging setup and have that installed when you receive your unit so you are ready to 107 begin logging under general circumstances The default data loggi
150. s that it leads the fundamental frequency Comparing the difference in the phase angle between voltage and current of a given harmonic allows you to determine the direction of the harmonic There are two basic types of THD calculations used in power Normally THD normally refers to finding the THD of the harmonics relative to the fundamental frequency THD F THD F is defined as the square root of the sum of the squares of the magnitude of each harmonic of the fundamental frequency divided by the square of the magnitude of the fundamental frequency rap Cath at h For instance if you are monitoring a 60 Hz current that has high distortion H1 the magnitude of the 60 Hz fundamental might be 120 amps H3 the magnitude of the third harmonic 180 Hz might be 60 amps H5 might be 30 amps H7 might be 15 amps and all the other harmonics might have magnitudes of 0 In this case the magnitude of the THD F would be 2 2 2 THD eee 57 120 83 K factor is a derivative of calculating THD where the frequency is given extra weight Each harmonic current amplitude is divided by the total RMS current multiplied by the harmonic number then squared and then summed over the first 50 harmonics Ph I xh K _ factor 2 gt rms This is a valuable measurement to observe when the heating effect of harmonics is a concern Using the numbers from the example above for calculating THD the total current of the waveform
151. se the Receive Sk ay MM se ba Data menu will open and all Er mere Ps0 z the different types of data A Seup Unit files in the connected ieee PowerSight will be i _ Serial Number 41356 displayed P Foma 32 Hardware 6 30 Warranty Ends 05 25 05 In the Data Types to Seal Comt enabled Receive section make sure e that there is a check in the box before the line Consumption Data Next look in the tabular section for the line with the Log data type entry Consumption logs have a To File name ending with log Make sure that the box at the start of the line is checked and then click on Receive and View to transfer the data log to your computer The name of the file is based on the entry in the File Name box For instance if osm is entered in the File Name box the consumption log will be called psm log If you want a different root name change it before receiving the file When the desired file has a checkmark to its left click on the Receive and View button to transfer the data log from PowerSight to PSM and immediately start looking at the data Or click on the Receive Only button to simply receive the data log 110 Viewing Consumption Logs To select a consumption log to view Pigcaopng Data Tools Help at the main menu click on View Consumption Data or click on ey View and then View Consumption E _ m Data or click on
152. several times to get to the display Calibrate Current Have one current probe attached to l1 Press Yes Accept Measure the highly accurate 200 0 Arms and press Yes Accept Setup Functions Several functions used in setting up measurements are available using the Setup key They include setting the log interval setting the utility rate setting the on off current level To review the log interval of the PS3500 press Setup several times until the present logging interval is displayed To change this setting press No Reject and then follow the instructions to enter the new log interval When the new interval is entered correctly press Yes Accept The interval may be set from 1 second to 99 minutes The log interval is used in determining the demand period and in assembling and storing data log records PowerSight allows you to set the utility rate used in calculating the cost of energy consumed Presently one simple rate is used 128 That rate can be displayed on the PS3500 by pressing Setup several times until the present utility rate is displayed To change this rate press No Reject and follow the instructions to enter the new rate When the new interval is entered correctly press Yes Accept The rate may be set from 0 00001 to 999 999 per KWH This wide range is helpful when setting the rate for certain international currencies The present on off current setting is displayed on the PS3500 by
153. sitive Power versus Negative Power Allowed 0 92 Changing the Power Measurement Mode in PowerSight 5 93 Changing the Power Measurement Mode in PSM 0 ccceseeeeeees 94 Defining IM PUTS a sssceseeite cketa tac EE 94 Changing Input Ratios in PowerSight ccccscceeseseeeessteeeeneeeeees 96 Changing Input Ratios in PSM ceccceeeeeeeceeeeeeneeceeeeeseaeeeseaeeeeneeeeaes 96 Voltage amp Current Waveforms ccccccsscesseeeeeeeeeeeneeeeneeeeeeeees 98 IrMtKOGIIGTIOR seeks ithe ic ohiaete beer ne os re ert SO cats ote nets ss 98 Saving Consumption Waveforms ccccccccceeeeeseeceeeeeseeeeessaeeeeneeeeaes 98 Receiving Stored Consumption WaveformsS ecceeeeeseeeseeenees 100 Viewing Consumption Waveforms cccccceeeeceeceeeeeeeeeeeeeeeeeeeeees 101 Monitoring Power COnSumption cccccccesseeeseeeeeeeeeeeneees 106 INTHOGUCTION c e6eSectetcesd whet see tee naa a a ea e a a a 106 Basic Consumption Data Logging seseeeeeeesseesreeerresrresrresriesrresnne 107 Receiving Consumption Data Log from PowerSight c0 110 Viewing Consumption LOGS eccceeeeeeeeeeeeeeeeeseeeeeseeeesaeeseaeeeeeees 111 Deleting Log Data in the Meter eee eeeeceeeeeenneeeeeeneeeeeenaeeeeeeaaes 112 Custom Consumption Data LOQQING ccccccssseseseeeeeeeees 113 Introductio Siac tn tivt etek ye Cay eGR Gyn Maeve 113 Starting Data LOQQING cccceceeeece
154. t results from operating in the 2 current mode by accident it is normally disabled in all new PowerSight units The user is required to enable the feature as an administrative function before the opportunity to operate in that mode is even offered in the user interface Enabling debug displays may be useful when working with technical support if there are technical difficulties 131 Other Functions within PSM Introduction In addition to the many power analysis functions of PSM that have been presented in previous chapters there are several other functions available These are functions of convenience functions for setting up attached PowerSight meters and functions for setting up the PSM program They include Operate PowerSight via remote control Install new firmware Setting the initial greeting of the connected PowerSight Setting the time of the connected PowerSight Setting the cost KWH of the connected PowerSight Selecting the communications port of your computer Selecting the speed of communications of your computer Selecting the language of PSM Enabling serial communications debug mode Remote Control of PowerSight Remote control operation allows operating a connected PowerSight unit from your computer Your mouse and keyboard actuate the keys of the attached PowerSight A picture of the PowerSight and its display are visible on your computer screen This is very handy for operating a unit remotely and for operating
155. ter column This provides the summaries for the measurement types during the timeframe of the after data The next column is a statement of the units associated with the before and After columns For instance the Units for voltage measurement types is volts 126 The next column is the Change in the value of the After column from the data in the Before column The values of this column use the same units as the Before and After columns such as volts At the far right is the Change column This presents what percent the before data has changed in going from before to after A negative number represents a decrease Therefore the example shows an estimated cost savings of 4 9 which represents a project savings of 19 02 per month for this one system 20 Ton Air Handler Before Upgrade After Upgrade File 20T onAirHandler log File POT onAirHandler log Test began at 9 23 02 10 17 00 Test began at 9 24 02 1 55 00 Test ended at 9 24 02 10 15 00 Test ended at 9 25 02 1 55 00 Measurement Before Units Change Change Voltage Phase 1 Ave 266 8 volts 0 9 0 3 Voltage Phase 2 Ave 269 5 volts 0 4 Voltage Phase 3 Ave 267 0 volts k 03 Current Phase 1 Ave 15 3 i amps 0 2 0 Current Phase 2 Ave 14 2 3 amps 0 2 Current Phase 3 Ave 15 1 i amps l 1 7 Current Neutral Ave i amps 00 Current Neutral Max j amps M 00
156. the data The Viewing Consumption Waveforms section presents additional material that relates just to waveforms The types of analysis and manipulation features are Selection of signals to view Attaching labels and titles Changing the color scheme Setting the scale Printing and saving as Windows bitmap graphic Redo get new data Zooming and panning Viewing data In order to ease selecting the signal you wish to see and to avoid cluttering the presentation we use an approach of primary choice and secondary choice This is a simple two step a r r Secondary Choice process First you choose gh een Set a primary choice That C Curent 2v2 Clea Al results in only being Saaie presented with the e appropriate secondary choices 138 Often the presentation of a graph can be enhanced by changing the title at the top from the filename to something more descriptive This does not change the filename but it may improve the look of the graph Also points of interest can be brought out in a presentation by adding labels to the chart The label consists of some text and an arrow To create labels or titles click on View and then Labels or click on the Modify or Add Label icon Ee ce aoa e S laje 2 2 2 e OI Normally the scale of a display is set automatically by PSM to give the best size presentation of the data However when doing before and after
157. they are more than 90 degrees then the current probes are probably not matched to the correct voltages probes and will need to be moved without changing the phase sequence 52 Conventional Motor tPF 0 87 dPF 0 87 Ih _ YYY tPF 0 63 dPF 0 99 KAF vv WV Variable Speed Drive tPF 0 73 l dPF 0 94 V12 l aA Vi2 ra Typical Phase Relationships Between Voltage and Current Measurement Types Voltage Measurements Voltage is the difference in electromotive potential between two points Simply stated it is the force that generates current flow and to measure voltage two points of connection are required In AC circuits this force measured in volts usually varies continuously and always reverses direction In DC circuits it is usually steady and never reverses direction If the voltage changes in a repeating fashion then it is called a periodic function All AC power distribution is based on voltage changing at a periodic rate There are several key voltage measurements Instantaneous voltage Peak voltage RMS voltage Voltage crest factor Maximum voltage Minimum voltage Average voltage Present voltage Voltage swell surge Voltage dip sag Voltage transient The instantaneous voltage is simply the voltage present between two points at an instant of time When the voltage is graphed over time the graph is called the voltage waveform The
158. tical Overcoming the problem of unequal currents in parallel cables takes a few steps to do it accurately 1 Puta different probe on each conductor of a given phase and then viewing the currents of each probe simultaneously see the Checking Current Levels Using Checkout Connections section 30 Start monitoring for 10 seconds or so and then stop monitoring see the Starting Data Logging and Stopping Data Logging sections Press the Current key and then the More key four times to view the average current for phase 1 which is actually just one of the conductors of one of the phases Write it down Press the Current key and then the More key four times again to view the average current for phase 2 Write it down Repeat these actions in order to get the average current of each of the conductors for the same time period Find the total of the average currents of each of the conductors of the same phase Divide the total of the average currents into the average current of conductor you wish to connect to during the actual monitoring session This yields the portion of the total current that flows through the conductor that will be measured Set the input ratio of the phase being measured to the number determined in the previous step For instance if the total of the average currents was 1000 amps and the average current of the probe on the conductor you wish to use during the actual monitoring session had an average of
159. to phase voltages This power measurement mode is discussed in the Voltage Measurement Mode section since it has direct effects on the measurement and display of voltages Changing the Power Measurement Mode in PowerSight To determine which power measurement mode PowerSight is in simply press the Measure Mode key three times and read the display If PowerSight is in Always Positive Power measurement mode the display will read Power Readings Always Positive If PowerSight is in Negative Power Allowed measurement mode the display will read Negative Power Readings Allowed To change the power measurement mode from what is displayed press the No Reject key and then press Yes Accept when the desired measurement mode is displayed 93 The power measurement mode that you choose will stay in effect until you change it It will not be changed by turning PowerSight off Changing the Power Measurement Mode in PSM To determine the power measurement mode using PSM connect PowerSight to PSM and then either go to the Setup Data menu and read what appears in the Power Mode box or operate in Remote Control mode and press the key combinations described above To change the power measurement mode using in PSM either go to the Data Setup menu click on the Power Mode drop down box select the mode that you wish to operate in and then send the new setup to the connected PowerSight meter or Power Mode Always Positive operate in
160. ts are not exact but the mathematics of combining three equations with three unknowns results in correct total power factor and total true power measurements 88 Changing the Voltage Measurement Mode in PowerSight To determine which voltage measurement mode PowerSight is in simply press the Measure Mode key of PowerSight and read the display To change the voltage measurement mode from what is displayed press the No Reject key and then press Yes Accept when the desired measurement mode is displayed Normally the 2 current approach is disabled when PowerSight is shipped to customers When disabled the choice for operating in this mode will not even be displayed when pressing the Measure Mode key It can be enabled or disabled as one of the administrative functions see Administrative Functions When it is enabled pressing No Reject to the Phase Phase voltage mode will result in the choice to accept the 2 current approach Press Yes Accept to enter this mode While in this mode V23 and l2 will no longer be measured or displayed and V32 appears in place of V23 The voltage measurement mode that you choose will stay in effect until you change it It will not be changed by turning PowerSight off Changing the Voltage Measurement Mode in PSM To determine the voltage measurement mode using PSM connect PowerSight to PSM and then either go to the Setup Data menu and read what appears in the Voltage Mode box or operate in
161. urements of power are highly accurate regardless of the waveform shape The phase shift characteristics of most other probes on the market are not this good This results in erroneous power and cost measurements and distorted waveforms Please Note To diminish phase shift when measuring small currents it is advisable to clamp onto multiple turns of the same conductor in order to increase the effective current being sensed 10 The HA5 offers two advantages over the HA1000 but these advantages come at a cost Its advantages are that the HA5 is a very small size 5 25 x 2 00 x 1 35 inches and second it offers much greater sensitivity since it reads currents from 20 milliamps to 5 amps as compared to the HA1000 measuring 1 1 000 amps The tradeoff is accuracy The probe has a basic accuracy of 2 and its phase shift varies by frequency and by amplitude All told you can expect to measure current to a nominal 2 25 accuracy and power and cost to a nominal 3 accuracy using the HA5 probe The HA100 probe is the same compact size as the HA5 The HA100 measures from 0 1 to 100 amps at 2 accuracy Itisa good choice over the HA1000 if you wish to lock PowerSight its leads and current probes inside a power panel that you are monitoring It is also a good choice when small size is important while measuring currents above 5 amps The HA100 is a popular choice for a second set of probes For very large currents and large bus bars we offer t
162. ut it is also very important for synchronizing multiple PowerSight units in order to correlate logs and events from several units located at different points at a site It also results in nice presentations of logs from site surveys when all units are programmed to start monitoring at the same moment and their graphs reflect this Setting Operational Features of PSM Several operational features of PSM are grouped together for easy access To access them click on Software Options at the main menu The Software Options window will pop up You can select the serial port used for communications by clicking on the Serial Port box You xi can adjust the speed of Serial Port Speed Language _ 9 K communications with an E 57500 z american z A attached PowerSight by Details clicking on the Speed box As an assistance ESS if you have the wrong speed set for the attached PowerSight PSM will automatically adjust the speed in order to make a successful connection 134 However since this process can take awhile it is always best to have the speed set correctly in the first place You can click on the Language box to change the language of the user interface Clicking on British will result in a European representation of the date date month year Clicking on American will result in a North American representation month date year Putting it all Together Monitoring for the First Time This section is int
163. view the section Connecting to PowerSight paying special attention to the safety warnings You or the unit can be hurt if you don t do things right Review the section on setting up your PS3500 Custom Data Logging There are many different operating modes and options You don t need to understand them all to get started immediately but it will increase your productivity to understand the options available to you The user interface of your meter is quite simple Just repeatedly press the key that is closest in meaning to the measurement you want until what you want is displayed If the measurement that is displayed is close to what you want but not quite what you re after press the More key repeatedly For instance if you want to know the average apparent power press Power twice until apparent power is displayed then More until average apparent power appears To analyze data send saved waveforms and data logs to your computer using the supplied PSM software If you want to create a data log review the section Putting it all Together Logging for the First Time This will enhance your understanding of logging and increase the likelihood that you will have good results on your first attempt Connecting to PowerSight Voltage Test Leads A Deluxe Voltage Probe set consisting of four leads is included with each PowerSight Each of the voltage test leads is 6 feet 2 meters long with safety banana
164. voltages If they are not swap two of the probes This will correct the phase sequence Verify once again that the spacing between them is still correct If not repeat the instructions of this section Checking Phase Lag Angle Using PSM When viewing the voltage and current waveform of a given phase you will notice a timing relationship between the two waveforms refer examples below The point at which the current reaches its peak may lead or lag the peak of the voltage by as much as 90 degrees 90 degrees at 50 Hz is 4 msec at 60 Hz it is 4 2 msec Typically current either lags the voltage or it may slightly lead it By the time you have gotten to this test you have verified that the voltages and currents are Select Signals to View 2 xI reasonable sizes and that aaa Renee their sequences appear to be C Vatas saj correct mea ee Help Now select a view of voltage and current and phase 1 only Check how much time passes between the peak of the voltage and the peak of the current It must be within 90 degrees 51 Next select a view of phase 2 only and then phase 3 only In each case note the time delay between the peak voltage and the peak current It should be close to the same If one current leads voltage and the other two currents lag voltage by different amounts then two of the voltage or current probes are probably switched If the delays are the same for all phases but
165. w the safety warnings of the previous sections before making the connections Fig 7 Recommended Three Phase Delta Connections Please Note Do not connect the Vn input to anything when measuring in phase phase measurement mode This may affect the measurements associated with individual phases In a delta configuration current flowing in each phase is due to the interaction of 2 different voltages For instance l1 current is the resultant of V12 and V31 Normally there is no way to determine what portion of the current is due to which voltage For this reason only the total power and total power factor have definite meaning in a delta system However comparing the power factors of each phase can be valuable for spotting a connection problem or problem with the load Delta power is common in motors and older industrial sites 21 A variation of delta is four wire or center tapped delta see figure 1D In this configuration if the main interest is in measuring phase neutral voltage then connect the neutral voltage to the neutral input for more accurate voltage readings Connecting to Three Phase Four Wire Delta Power Figure 6 presents the recommended connections to a three phase delta system where a neutral is provided from the center of one of the phases Be sure to follow the safety warnings of the previous sections before making the connections This type of system allows delivery of both three phas
166. where 120 V outlets are not readily available The LDC4 is a more powerful version of the LDC2 and can power any of our meters except the PS3000 If you need to operate the LDC4 off of 600V phase to phase service connect one input to a hot phase and the other input to neutral 33 The internal batteries are automatically charged when the wall mount supply is connected to the unit or when PowerSight is connected to the LDC accessory The internal batteries are not to be replaced by the user Only batteries provided by Summit Technology are to be used in PowerSight Turning PowerSight On Simply press the green on off button at the lower right of the keypad on the front panel and PowerSight will be operating pressing the button again turns the unit off The meter s greeting will appear You can change this greeting at any time by following the directions in the administrative functions that are accessed by pressing the Admin key Please note that turning PowerSight on does not automatically start monitoring and logging Refer to the Putting it all Together Monitoring for the First Time section for how to start monitoring and logging Turning PowerSight Off To turn PowerSight off simply press the green on off button at the lower right of the keypad on the front panel PowerSight will ask if you are sure you want to turn the meter off Press Yes to confirm that you wish it to turn off This process provides a safe and
167. will be off by much more than 30 in a three phase system Circuit not energized If one or more of the phases is not energized then any logging session will be a waste of time Incorrect frequency measurement mode If PowerSight is set for fixed 50 Hz operating mode but the circuit is actually 60 Hz all measurements will be erratic and will vary from second to second Similarly if it is set for fixed 60 Hz but you are measuring a variable speed drive operating at 55 Hz the results will be erratic and vary from second to second Non standard voltages or phase angles If there are unusual voltages or inter phase angles the circuit that is being monitored is suspect There may be a problem with the equipment or power service that should be understood before a logging session begins SureStart is a patented technology developed by Summit Technology that does a better job of identifying connection and setup problems than you can expect an expert to do To use the SureStart feature press the Verify Connections key on the top row of the keypad It does a complete analysis of the power signals and connections that are present and displays the results Alternatively you can use your PC to visually checkout if all connections are accurate To do this refer to the section on Verifying Connections using PSM 43 The SureStart feature briefly reports its findings in four groups of information These are Identify System
168. work with PowerSight 3 Why can t I receive any data from my PowerSight See the Data Troubleshooting quide on your installation CD or view the guide on our web site www powersight com for detailed help 4 Why doesn t my PowerSight read Voltage Current correctly There are many reasons why PowerSight may not be reading voltage or current First check that you have all the voltage and current leads connected correctly Then if that doesn t solve your problem check that the frequency mode of the PowerSight is in the correct mode for your situation 5 Why doesn t my PowerSight turn on This is most likely caused by a dead battery Plug in a power supply and see that the red LED on the right side of the meter is glowing Make sure you use the correct rated power supply for the PowerSight that you are using 146 6 How long will the battery last A fully charged PS3500 will run 8 10 hours It is fully charged in about 12 hours 8 hours is adequate The battery should not need replacement for at least 2 years Only authorized service personnel can open the meter or replace the battery 7 Why does my voltage current reading seem to be off This may be caused by an input ratio left inside the meter from a previous data setup Change the input ratio to 1 1 for all input signals and try again see the sections on Changing Input Ratios in PowerSight and in PSM You should also check your frequency mode and make sure that all m
169. y PowerSight scans its inputs each second to look for an active power signal to measure If none is detected all voltage and current measurements are assumed to be zero for that second This scanning feature allows the user to connect and disconnect PowerSight to various signals without concerning himself with the source of the frequency measurement It is important to monitor frequency at installations where the frequency may vary If an instrument makes the wrong assumption about the fundamental frequency all voltages currents powers etc will be inaccurate Frequency Measurements in PSM The consumption data log can record maximum minimum and average frequency PowerSight determines which input channel is the source of this measured fundamental frequency When graphed the summary values at the top of the screen are the maximum minimum and average of all the values shown on the screen When viewing consumption waveforms if a harmonic analysis is presented the fundamental frequency is presented The measurements of frequency presented on the PS3500 can also be displayed in PSM by using the remote control feature 77 In addition our Report Generator software will present maximum minimum and average frequency during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change between the two intervals For instance if a comparison report is
170. y cards from cameras etc can be used when needed Presently the meter only reads cards that are formatted using the FAT16 or simply the FAT file system Cards below 64MB will typically use the FAT 12 system and will need to be reformatted to FAT16 in order to be used in your meter Cards that are 4 GB and above use the FAT32 system and cannot be read by the meter this limitation will be removed when supporting firmware becomes available and will be a free upgrade Cards between 32 MB and 2GB that have been reformatted will generally not work with your meter unless they are reformatted again to FAT16 the default format for Windows is FAT32 so a reformatted card is usually FAT32 Do not change the location of the files and folders that are automatically created when the card is inserted into the meter Any changes will likely prevent your PowerSight Manager PSM software from locating them Using the Memory Card Data with PSM After you have installed Power Sight Manager the memory card into a __ 5ie_ Settings en Dats Tools Heip memory card reader in or attached to your Setup PowerSight Manager computer click on the Ef daa seup ag Receive via Memory Ps2 z Card button of the aig sepuni main menu of PSM or V click Data then Receive Data via 5 Serial Number 02522 Receive Data Unit 65 pe Receive Via Serial Firmware 4 0b anaoa Hardware 7 12 Memory Card You eee eee will
171. y slow down or even fail The solution would be to either select less variables or remove the checkmark from the graphics box The Log Details screen also has a box for entering a KWH cost rate This will be used in the report for all cost estimates When you are satisfied with the selections click on Next to obtain the report Viewing a Report The report appears on screen and is in a rich text format You can edit and format the report within any word processing application At the top is the title that you entered followed by information about the source of the data filename start time and end time The example shown is a comparison report so there is information about the source of the before data and separate information about the source of the after data After the source information is the main body of the report Each measurement type is listed in the first column The Before column is the one number summary for the measurement type for the before time period If itis an average like Voltage Phase 1 Avg the value is the average over the before timeframe If it is a maximum like Voltage Phase 1 Max it is the maximum over the before timeframe If it is an estimate like Cost estimated per month it is an estimate of what the value would be for one month if the before data continued for the entire month After the Before column is the Af
172. ycle Measurements in PowerSight If power consumption is being monitored the percent of the time that current is flowing in phase 1 is displayed by pressing On Off Cycles The average on time and the average off time are displayed by repeatedly pressing More For instance if you are monitoring a refrigeration unit press On Off Cycles to display how much of the time the compressor is running and then press More to display how long the compressor runs on average The level of current considered to be on is easily set by the user It is a function accessed through the Setup key Using this feature a user could define 2 amps as on and hence anything less than 2 amps as off This would allow minor currents to flow in a circuit without affecting the duty cycle measurement PowerSight comes from the factory with the on current set to 1 amp If power consumption is being monitored the number of times that current in phase 1 goes on is displayed by pressing On Off Cycles once or twice Based on the history of monitoring consumption estimates of the rate of on off cycles are calculated each second These estimates are available by repeatedly pressing More after displaying the total number of power cycles For instance if you are monitoring an air conditioning system and wish to know how many times per hour the unit turns on and off press On Off Cycles until the number of power cycles during monitoring is
173. you set the trigger level for 160V a trigger will occur twice each cycle since the normal sine wave exceeds this level during each half cycle 85 The PS3500 measures and records the following aspects about disturbances the peak magnitude the absolute value of the worst transient event relative to zero the length of time that the worst transient exceeded the threshold level in 16usec increments the rise time of the worst transient in 16usec increments the time and date of the worst transient a total of how many transients occurred during the disturbance monitoring session This information is available on the display of the meter by first pressing the Triggered Events key to see how many triggered events have occurred such as 1 gt 600V and then by repeatedly pressing More to see the information about the worst transient 86 Measurement Modes Introducing Measurement Modes PowerSight performs so many measurements that it is quite a challenge to keep the instrument easy to use Often you make measurements on one general type of system There is no need to complicate your task by PowerSight asking you to make the same choices over and over Many of the basic choices define how you wish PowerSight to interpret its inputs and how you want it to calculate and record its results To accomplish these ends several measurement modes can be selected by the user The general categories are Voltage measurement m

User`s Manual for PowerSight PS3500

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