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Impedo DUO - CT LAB Power Quality

1. 111 CTLAB User Guide _ Impedo DUO 4 Portable ImpedoDUO Impedo PORTABLE UNIT for power quality investigations Top lid extention with harnass cables e Power connection set e Voltage connection set Wiring amp Clamps included e Current connection set e USClamps Mid drawer e Impedo DUO e US Clamps e Micro clamps 5A 1V e GPS antenna and 15m extention cable Bottom shelves e US Clamps e Micro clamps 5A 1V CT Lab Pty Ltd 27218809915 info ctlab com www ctlab com g CTLAB Impedo D User Guide 112 ee 5 Accessories and Options The following are standard options ImpedoDUO Installation Options Panel Mount 19 Installation Plate Portable Case Impedo DUO Panel mount Impedo DUO Panel mounting plates GPS antenna amp 15m extension cable GPS antenna mounting bracket Panel mounting plates GPS antenna 15m extension cable GPS antenna mounting bracket Screw driver USB with meter key Ethernet cable Impedo DUO User Guide 113 CTLAB ee Impedo DUO 19 e Impedo DUO e Panel mounting plates e GPS antenna amp 15m extension cable e GPS antenna mounting bracket OH 19 4U mounting GPS antenna 15m extension cable GPS antenna mounting plate bracket Screw driver USB with meter key Ethernet cable Impedo DUO Portable unit e Impedo DUO e Portable Impedo DUO case e GPS antenna 15
2. T aseud 7 aseud n gt Dv n D Ww y aseud uinjay T aseud uunjay Z aseud usnjay aseud uinjay y aseud Figure 12 Current sensor connection Do not disconnect the current terminals without bridging the CT circuits Only certified electrician is allowed to bridge the CT circuit User Guide 35 SN CTB Ta 2 4 5 Current Transducer Inputs Each individual meter contains 4 voltage output current transducer inputs with a full scale reading of 1 4 Vac rms per meter These voltage inputs can be used to directly interface with voltage output current sensors such as Hall effect devices and Rogowsky coils The current inputs are available on an 8 terminal lockable connector plug with screw terminals Each terminal can accommodate conductors with size up to 1 5mm Table 4 Current transducer connection layout Terminal 1V Output Current Transducer Circuits Vi Voltage 1 Voltage 1 Reference Va Jeu v aseud aseud fay Z aseud 7 aseud Jeu T aseud T aseud v aseud Jay aseud DHOL HARE JES Va Ma or TETE Full Scale Range 1 OVems Figure 13 Current transducer connection Impedo DUO User Guide 36 SN CTAB 2 4 6 Relay Outputs Six relay outputs 100 mAgys 350 Vays are used to provide pulsed outputs or to control external processes The outputs are arranged into 2 galvanically isolated clusters 1 kV isolation each containing 3 switched con
3. ELO E fi Impedo DUO User Guide 109 CTLAB TT Impedo DUO wiring diagram 2 IMPED IEC61000 4 30 Class A E Side A Side B o E12 5 ta TL vi SIE 3IE va fe E32 e ve SIE Vcom ganie VT CIRCUIT E52 ne VT CIRCUIT n Us 1 3 vs 3 3 c ja e 2 a E32 FEDE FEEDER 1 E2 o4 con po 3 Glielo FEEDER 5 Measurements E12 E Vs E A lt vi ea fis s V Hz aw i VA Po ici a ui 31 F ic ria 2 ISO METERING CT CIRCUIT METERING CT CIRCUIT pa Ee IE n Jee Eee BER o 5 3 varh Eq pao EE FEEDER 1 DAL og E s THD p ree lee F DER 2 7 e min qm DIO el SIE i SIE 2 to me ave s Flicker 2 3IE ale 3 U amp I harmonics E 4 VE 3 E 3 y3 5 2 va Se 3 ve 6 3 7 e A vale Jr NOTES n CM n S6 8 1 AC DC SUPPLY VOLTAGE 90 300Vrms 6 SS C z S4 2 VOLTAGE SENSOR INPUTS 0 600Vrms IL
4. 2 2 1 Receiving your shipment Upon receiving your Impedo DUO shipment check the following e Outside o Box is seal o Box is not damaged o Box has no water damage e Inside o Impedo DUO in a plastic enclosure o Impedo DUO has no water damage or damp in the plastic enclosure o Impedo DUO screen is intact and has no cracks o Ethernet cable Flash drive and the screw driver is included in the box If the shipment is damaged or not in a working condition please take pictures of the damage and send the pictures to info ctlab com as soon as possible Please also phone CT Lab on 27 21 880 9915 to handle the problem as soon as possible Impedo DUO User Guide CTAB CAT 12 2 2 2 Unpacking the goods 1 Remove all literature inside the box on top of the high density foam 3 Remove the accessories in the accessories cavity on the right side of the box Check that the standard accessories see Section 2 2 1 are included Carefully remove the lid of the high density foam enclosure Remove the Impedo DUO from the cavity and inspect for damage 2 2 3 Return shipment Should the instrument be returned to CT Lab due to damage during shipment or instrument failure please follow these instructions 1 Insert the instrument into a plastic bag to prevent water damage during shipment transit and 2 Protect the instrument properly and also put it inside a padded box to prevent mechanical damage during transit 3 Complete t
5. LCD Display lagalaga Var Voom Va Full Scale Range 6 0Aaus Full Scale Range 6 0Agus CURRENT SENSOR Figure 5 Back of instrument USB 1 Sa Figure 6 Right side of instrument Impedo DUO User Guide 28 CTLAB SS USB 2 ETH 2 ETH 1 e _ Figure 7 Left side of instrument Figure 6 show the right side of the instrument with USB port 1 and the GPS antenna connector Figure 7 shows the left side of the instrument with USB port 2 and the two Ethernet communication ports 2 4 2 Power Supply The Impedo Duo can be powered and charged via a power factor corrected universal input mains supply or via IEEE 802 3 2008 compliant Power over Ethernet PoE A built in LiFePO battery will power the instrument for up to 20min in the absence of power This battery has a design life expectancy of more than 2 000 charge discharge cycles The Power Supply port contains 3 terminals on a removable lockable plug Each terminal can accommodate conductors with size up to 2 5mm The supply voltage input range is from 90 Vays to 300 Vrms AC or DC 42 69Hz for AC sources This enables the instrument to be powered from the 110 V VT terminals 230 V auxiliary supply or the DC bus Impedo DUO User Guide na 29 Table 1 Power supply connection Terminal Legend Description ve Terminal Earth Live Figure 8 Impedo Duo power supply Connection The supply current is power factor corrected a
6. Phase Rotation Measured Clockwise Figure 35 Meter point creation voltage channel verification A verification screen for the voltage channels is now available Verify the physical connections by the phase rotation as displayed the VT ratios and the declared voltage The VT ratio and declared voltage can be corrected from this screen Once the voltage channel setup is confirmed click to continue Impedo DUO User Guide 7 f om CTLAB he e a 5 8 1 5 Verify Current Channels P Meter A B Verify Current Channels Terminals Network 30 009k 21 601m 32 6 375k 28 29 400k 21 321m 2 70 859 6 759k 402k 29 195k 4 1 101m 79 296u ca 1 224m Total 20 332k 86 88 600k Change CT Ratio Phase Rotation Voltage Rotation Clockwise Current Rotation Counter Clockwise Figure 36 Meter point creation current channel verification A verification screen for the current channels is now available Verify the physical connections from the phasor rotation as displayed Correct the polarity of CT s if necessary Ensure that the current readings are as expected and correct CT ratios if not Click to complete the setup The newly created meter point is now attached to the specific meter selected The instrument will now record any configured data for the created meter point note that if no trends or monitors are selected no data will be recorded Confirm that the meter point is re
7. valid time source 5 3 2 Time Data recorded with invalid timestamps are not useful The Impedo Duo will attempt to ensure that it only records data with valid timestamps After a power cycle with the reset switch cf Section 0 the RTC is in an undefined state Typically but not necessarily so it has a date of 1 January 1970 The instrument detects invalid dates by marking dates the following dates as invalid e Prior to 2010 e Prior to 1 day earlier than the time when the instrument was last shut down with valid time e Later than 1 year that the time when the instrument was last shut down with valid time It is important to note that the instrument will not record any PQ data until it received valid time at least once after powering up Impedo DUO User Guide CTLAB NO 7 Teee 55 This is only valid when a user resets the instrument when the instrument shuts down due to supply reliability the RTC will continue for longer than 6 month without validating the time from NTP or GPS The Impedo Duo s built in real time clock RTC is accurate to 10 ppm implying that in the worst case it can drift up to 0 864s per day or 6s per week 5 min per 365 days and support leap year To prevent time from drifting the Impedo Duo can keep its time synchronized to 100ns of absolute time using a GPS or 20ms of server time using NTP Time synchronisation is also possible with Osprey Lite but to an accuracy of 1ms from the PC
8. 6 2 2 Power Over Ethernet PoE In addition to or as alternative to AC power the instrument can be powered via any of the Ethernet ports using an IEEE 802 3 2008 compliant power source 6 2 3 Instrument Activation The instrument is shipped with the reset switch switched off to protect the battery and increase the storage live of the Impedo DUO The reset switch is reachable via a small hole close to the GPS port on the right side of the instrument as shown below Figure 59 Impedo DUO reset button If power is connect to the instrument and the reset button is pressed the Power switch icon can be slide down as shown below Figure 60 Power switch icon on the OLED Impedo DUO User Guide SN CTLABT_ AT 93 6 2 4 Voltage connections 6 2 4 1 Single phase connection Always connect the safety earth terminal located on the power connector first Table 10 VT circuit connection layout for single phase connection Da e e e ue o e e Connect the phase Voltage to Voltage Inputs 1 as shown in Figure 61 e Connect Neutral 400 V systems or the star point 110 V VT circuits to Vcom e The fourth voltage input may be used to measure Neutral Earth voltage Phase 4 Ref Phase 4 Neutral Phase 1 Figure 61 Impedo DUO single phase connection Impedo DUO User Guide na 94 6 2 4 2 110 V Voltage Transformer VT Circuits amp 400V Direct Star 4 wire systems Always connect the safety earth terminal located
9. 7 3 3 Time Time Source Source Network Time Custom server Figure 28 Time Master configuration The Impedo Duo will not record any PQ data unless it has valid time Time Master manages this aspect of the instrument It automatically determines the best time source It will use the following sources in order of preference GPS Network time internal clock Automatic time source selection can be disabled by setting the time source explicitly to either GPS or NTP Impedo DUO User Guide ASTAS 65 Time Master will query pool ntp org to find the best NTP server close to the instrument If a specific NTP server is desired the server IP address or DNS name can be entered in the Custom server field see Figure 28 The Impedo Duo will not record any PQ data until it has valid time 5 7 3 4 Security Override Password Password Write Password Password Modbus Password Password Figure 29 Security configuration 5 7 3 4 1 Override Password The override password is used to override a user login password applicable when the instrument was registered as part of an enterprise or Osprey Pro fleet It can also override the write password By default it is set as CT Lab The default override password is CT Lab Set the default override password to secure the device against unauthorized physical access Impedo DUO User Guide 66 CTLAB A rIiiieG6Gee 5 7 3 4 2 Write Password If set applications
10. Communicating with the Impedo Duo assess 53 5 3 Data Recording asia ii raca 54 Sol MErLoib r erent reer DS nee reer eer rene eee 54 532 her 55 5 4 How to navigate within EOS ssssssssunnnunnunnnnnnunnnnunnnnnnunnunnnnnnnnnnnnnnnnnnnn na 57 5 5 Application Selection Screen rin 58 5 6 REBISETAtiol iail aaa 59 Dibil ACCOUN asee i 59 302 MENON annoiare 59 dx Osprey Pro ERI lara 59 5 7 Preferentes ssie Eee eee 60 Impedo DUO User Guide CTLAB N 57 4 Etherhiet sacassinssrscvttenvansccnestoca devarsteasnin fauna imediata ci e 61 Mage 63 Sdi NMASCENANCOUS asda E RS Pai O 64 ce eos 67 5 8 Meter Config ussiisa ra 68 5 8 1 Creating a New Meter Point 68 5 8 2 Detaching Meter POL assa ste io sda Si 73 dos Editing a Meter PORN dii a dd 73 5 8 4 Attaching a Previously Created and Configured Meter Point 74 58 9 Gonfigurme a Meter Poker 74 5 9 Realume view 78 cdi idee 78 02 PW inn 79 dd Oficina 80 5 10 PO EVENTS Lalli 81 DLL LOE VICW OT sruni eN nn ee ene 82 5 12 Timed Recording ssssssssusssussnnnunnnnnunnnnnunnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnn 83 S FEDON Sen e noe RERA E EE oe ee 84 S d4 ManapeDaldi aaa 86 6 Impedo Duo Installation 88 6 1 Mounting the Impedo DUuo rie 88 6 1 1 Panel Mounting Installation 88 6 1 2 19 Rack Mounting Installation uu eens 90 Od PORADIO VONSON sais aiaia eee eee 91 6A CONNECHOnNSian a 92
11. EM 3 CURRENT SENSOR INPUTS O 6Arms lt T 4 ie MEA E 2 4 BN E S1 Power Quality Recorder Itemref Quantity Title Reference IMPEDODUO POWER QUALITY RECORDER REVISION 2 Drawn by Checked by Approved by Title Name Date Scale T Seiphetlho C Marais W van Wyk WIRING DIAGRAM 2014 12 11 CTLAB Pty Ltd Frame 15 Termo Lane Techno Park Phone 2721 880 9915 IMPEDO DUO WIRING Stellenbosch Fax 2721 880 1088 Drawing number Edition Sheet South Africa email info ctlab com IMPEDODUO Ver 002 1 T IMPEDODUO WIRING dwa 110 User Guide Impedo DUO Impedo DUO rating plate Back plat 3 POWER SUPPLY 90 300V AC 45 65Hz 100 300V DC 30VA max A Refer to the User Manual for detailed connection diagrams Active Antenna 3 3V DC 0 1A max USB2 0 High Speed Host 5V DC 0 5A max 300V ms 0 1Apms max SWITCHED OUTPUTS CURRENT TRANSDUCERS Full Scale Range 1 0V ps eee ee CURRENT SENSOR INPUTS Full Scale Range 6 0Ap ns VOLTAGE SENSOR INPUTS Full Scale Range 600Vams Impedo Duo IEC 61000 4 30 ED3 0 Class A 3 phase Power Quality Recorder www pq portal com CT LAB www ctlab com Full Scale Range 6 0Agws CURRENT SENSOR INPUTS
12. Manage Miscellaneous Time Zone Impedo DUO User Guide ASTAS 60 5 7 1 Ethernet Type Static IP Netmask DNS Gateway Discard Figure 24 Ethernet configuration for port 2 5 7 1 1 Communicating via Ethernet on LAN The port marked ETH 2 is used to establish communication to an enterprise network or to a laptop PC running Osprey The user has the ability to manually configure the IP address of this port or to allow the address to be issued by a remote DHCP server This setting is provided by selecting Ethernet in Preferences see Figure 24 Only the IP address of ETH 2 can be configured 5 7 1 2 Communicating via Ethernet through a Router Connect the Impedo Duo to the router through Ethernet Port 2 Configure the Impedo Duo to have a fixed IP in the same IP range as the router Ensure that the gateway address of the Impedo Duo is set as the router s local IP address Example Router IP 192 168 254 1 Netmask 255 255 255 0 Impedo Duo IP 192 168 254 2 Netmask 255 255 255 0 Gateway 192 168 254 1 On the router port forwarding needs to be set up to forward ports 27030 27045 to the Impedo Duo s address Impedo DUO User Guide na 61 5 7 1 3 Communicating directly with a laptop or PC The port marked ETH 1 is used to create a local network The Impedo Duo will issue DHCP addresses on this port This port is primarily used to establish communication to a Laptop PC that is not connec
13. Oil AC OND CI aiii 92 62 2 Power Over Ethernet POL ranson 93 Impedo DUO User Guide SN CTLABT_ 6 2 3 Instrument ACtiVatiON ccccccccsssssceccesssccceceecceccessecccececsseseeeesseecessseeasenssseees 93 Se a9 62 124 291610 014 lt 1 8 0 0 Kc eee serene amen ter eee tr eee er ee ee ne etre area 94 GAs Current C0 3001 618 0 nana 99 6 2 6 Ethernet Based Communication ienes 103 RI ibi 103 Geo SG GPR MOC agate ica 103 7 Maintenance 104 Sl BV 104 TZ MOUS OVAY ica 104 7 5 TFaNsport i cn 104 i E a 104 7 3 Warrantee and Repall cui ia 105 7al Warr ntee SIA Oe EUV PM as pur pda te e sata ae 105 ho Loop 106 104 oles ASSI SCO asa 106 Tod Repair and Calibratiofi ica 107 Appendices 108 1 Impedo DUO dimensions 108 1 1 Panelmoiuntins plates 109 1 2 19 installation plate ia 109 2 Impedo DUO wiring diagram 110 3 Impedo DUO rating plate Back plat 111 4 Portable ImpedoDUO 112 5 Accessories and Options 113 6 Glossary 117 7 Symbols and Abbreviations 118 Impedo DUO User Guide CTLAB NO 1 Safety Instructions This section provides information on safe handling installation and commissioning of the Impedo DUO Before carrying out any work on the equipment the user should be familiar with the contents of this document Reference should be made to the instrument s wiring diagram and the ratings before any installation can commence 1 1 Symbols Notice Used to call attention to important information Used t
14. Panel door with cut out Optional accessory Impedo DUO User Guide 89 CTLAB _ Tr Step 3 Install the front and back plates on the panel door using the mounting screws as shown in Figure 54 Step 4 Fit the Impedo Duo into the installation plates and screw the holding screws into the Impedo Duo 6 1 2 19 Rack Mounting Installation A 19 rack 4U stainless steel mounting plate carry the Impedo Duo while providing a mechanical interface for 19 racks Figure 56 19 rack with Impedo Duo 7 Optional accessory Impedo DUO User Guide eres 90 6 1 3 Portable version The ImpedoDUO can also be supplied as a portable unit for PQ investigations as shown in Figure 57 The accessories included in the portable unit are listed in Table 8 Figure 57 Impedo DUO portable unit Table 8 List of accessories nia Jum TT Ti rem mene Voltage connection set Wiring and six clips included Current sensor and current transducer connection set US Current Clamp 250 500 1000 5A Micro Clamps 5A 1V Impedo DUO User Guide SN CTAB CTAN 91 6 2 Connections 6 2 1 AC Power Always connect the safety earth terminal located on the power connector first Table 9 and Figure 58 depict how to connect the AC power supply Table 9 AC power connection layout Neutral Earth j Live Figure 58 Impedo Duo AC power supply connection Impedo DUO User Guide 92 SN CTB rt a
15. This view provides a grid with readings of the fundamental phasors for voltage current and power It also provides a phasor diagram and the waveform of the first three cycles in the 10 12 cycle block While an event is in progress the event type will appear at the bottom of the grid see Figure 42 The value in parenthesis following the event type is the duration of the event so far Impedo DUO User Guide 78 E dE CTLA b i AM Realtime View Fundamentals Meters Meter A Duo 208 Meter B Vreden Event in progress 5 9 2 Power Meter A Duo 208 Meter B Vredendal Sub Dorp This view provides a grid with the RMS reading of the voltage current and power fundamental phasors Diagrams for power channels 1 to 4 and the total power visualize the relative size and angle for each channel The view also shows the accumulated active and apparent energy Impedo DUO User Guide ho 79 CTLAB NS lt 5 9 3 Harmonics This view provides a grid with RMS information for a specific harmonic as well as THD for voltage and current Select the desired harmonic by pressing on the harmonic number drop down Select between harmonic and inter harmonic readings by pressing on the Harmonic drop down The spectrum up to the 49 harmonic for the selected spectrum parameter is visualized at the bottom of the view The user has a choice between voltage current active power reactive power and apparent power spe
16. W Rod P x O as It is possible to change between Star four wire and delta three wire topology if the neutral is connected to Vcom 5 8 1 3 Configure Current Channels P Meter A B Configure Current Channels EG Link Channel 4 Chan 1 3 Sensor Type Current Sensor Ratio 200 Chan 4 Sensor Type Current Transducer Ratio 1 Derived Current None None n 12 13 12 11 13 13 11 12 14 11 12 13 Check the Enable checkbox to enable current data recording Select the sensor type used to measure the current This should correspond with the physical connections of the chosen sensor type to the instrument Enter the CT ratio If channel 4 uses a transducer with a different ratio than the rest uncheck the Link Channel 4 checkbox to enter the different ratio for channel 4 The Impedo Duo allows the derivation of a current channel by applying Kirchhoff s Current Law If a channel is to be derived select the appropriate derivation method Click to continue It is possible to use a different sensor type on channel 4 than channels 1 3 Impedo DUO User Guide 0 SJ am NA 4 CTLAB No S a sr 5 8 1 4 Verify Voltage Channels P Meter A B Verify Voltage Channels Declared Voltage 6700V Ch Terminals Network Error Declared 1 225 944 6 778k 1 169 82 225 944 6 778k 1 169 3 225 944 6 778k 1 169 4 1 025 30 764 99 541 0 Change VT Ratio Change Declared Voltage VUnbalance 5 277
17. choose to export all data or export from a specific date Click to start the export process A dialog will appear showing the progress of the export The export can be safely aborted and the data exported up to that point will be on the USB device The user can select which harmonics to export from the harmonic selection tab see Figure 49 This selection is persisted to the USB device and will be used when the device is plugged into the Impedo Duo on a next occasion Exporting data using this method is a slow process exporting an entire 100 filled storage chunk will take several hours Should the user wish to use a mass storage device the instrument can be configured to continually export data to the mass storage plugged at one of the USB ports The Continue Export option will only be available after exporting some data to the mass storage Impedo DUO User Guide a LAB N 84 f gm 4 S Ni P Sd Pd f m Es Export e Defaults Harmonics Impedo DUO All Settings Harmonic Selection None Custom Inter Harmonics e Figure 49 Export harmonic selection User Guide f om CTLAB he e pee 85 Eg 9 14 Manage Data H mia Ja Manage Data Hb Delete Data File Info Meter Point Duo 208 Data Availability Earliest Latest Delete All Meter Points and Associated Data Delete Data For All Meter Points Delete Meter Point and Associated Data Delete Data For Meter Point D
18. down If the battery was depleted below the point where the instrument can be powered up a battery icon will display when power is applied to the instrument and the OLED is touched If no external power is available the battery icon will not be displayed 10 The surplice battery charge available and battery currently not charging Impedo DUO User Guide CTLAB_ 49 10 Ea The surplice battery charge available and battery currently charging 10 The charge time remaining until the system will have surplice charge z available and have ride through ES The battery is too low to safely power up the instrument 4 7 On Board Storage Usage The percentage of disc space used is displayed on the OLED as shown in Figure 20 4 8 Time source The Impedo Duo has three sources of time It can automatically determine which source to use The user can override the automatic selection and specify which time source to use see Section 5 7 3 3 The current selected time source is shown on the OLED display Figure 20 with one of three icons 3 No synchronisation with a time source for example GPS or NTP the internal RTC with an accuracy of 10 ppm can drift up to 0 86s per day connection enabling time accuracy of typically 20ms to the NTP time O NTP time synchronisation is available with a permanent internet source GPS time synchronisation is available with an active external GPS antenna R and enables time to be mana
19. on recorded data according to industry standards such as NRS048 EN50160 and IEE1158 All communications are encrypted and each instrument is password protected More information can please contact CT LAB 2 3 6 Sampling Rate The instrument samples all analog input signals at a rate of 500 kHz 10 000 samples per cycle and then digitally down sample the data to 50 kHz 1000 samples per cycle All IEC 610000 4 30 parameters are calculated based on this 50 kHz resolution for both voltage and current Waveform and other events are triggered from the 500 kHz digitised waveforms These waveforms are locked to the fundamental frequency to prevent multiple zero crosses Captured waveform data can be further subsampled to reduce stored data size The user can configure the waveform sampling rate from 1 kHz to 50 kHz Please refer to the Osprey Lite user manual for more information on selecting the down sampling rate 2 3 7 The 1 6 Sense The Impedo DUO calculates a complete set of 1 cycle sliding RMS and fundamental phasor parameters on each of the 3 voltage phases resulting in a resolution of 6 values per cycle per phase The IEC 61000 4 30 Class A requirements are based on a cycle sliding approach This higher resolution data improves the detail of the event profile and enable more accurate depth duration calculations Impedo DUO User Guide CTLAB_ 18 Please refer to the Osprey Lite user manual for more information on 1 6 cyc
20. on the power connector first Table 11 VT circuit connection layout for 4 wire star connection e Connect Phase 1 2 and 3 to Voltage Inputs 1 3 as shown in Figure 62 below e Connect Neutral 400V systems or the star point 110V VT circuits to Voom e The fourth voltage input may be used on 400V systems to measure Neutral Earth voltage Phase 4 Ref Phase 4 Neutral Phase 3 Phase 2 Phase 1 4 4 q Figure 62 Impedo Duo 4 wire star connection Impedo DUO User Guide SN CTAB _ 7 CTAB 95 Meter A and B are not conformed to specifically measure single phase 4 wire Star or 3 wire Delta but rather handle all topologies Impedo DUO User Guide CTIAB NN n E a 96 6 2 4 3 110V Voltage Transformer VT Circuits or 400V 550V Direct Delta 3 wire systems Always connect the safety earth terminal located on the power connector first Table 12 VT circuit connection layout for 3 wire delta connection 1 Connect Phase 1 2 and 3 to Voltage Inputs 1 3 as shown in the Figure 60 2 Leave Viom Open or connect Vcom to the earthed Phase Phase 2 on 110V VT circuits Phase 3 Phase 2 Phase 1 Figure 63 Impedo Duo 3 wire delta connection Impedo DUO User Guide na 97 Meter A and B are not conformed to specifically measure single phase 4 wire Star or 3 wire Delta but rather handle all topologies Impedo DUO User Guide CTAB ee a 9
21. that perform state changing actions Preferences Registration Meter Config Manage Data will require this password before opening This password can be used when the instrument is in Standalone mode and it is required that data may be viewed but no changes made to the instrument By default it is empty 5 7 3 4 3 Modbus Password The Modbus subsystem uses this password during authentication 5 7 4 Time Zone Area Africa Location Johannesburg Discard Figure 30 Time zone configuration The time zone setting configures the time zone used to display time and dates on the UI e g on the date and time OLED status area The time zone setting will not influence the dates of captured data in any way To configure the time zone first select the area of the time zone and then the location Then select save The OLED display should update to reflect the selected time zone Impedo DUO User Guide 67 CTLAB O oo i Se 5 8 Meter Config amp N Meter Config Meters Meter A Recording Meter B Stopped Meter Config allows the user to create and configure meter points One can also detach meter points or reattach previously created meter points The display is divided into the navigation menu on the left and the detail view on the right 5 8 1 Creating a New Meter Point To create a meter point and attach it to a specific meter select the relevant meter by clicking on Meter A or Meter B Click o
22. 00 charge discharge cycles PHYSICAL Construction Aluminium 220mm x 131mm x 85mm L x W x H Mounting options 3U 19 Rack Panel Mount Portable Case Electrical connections Pluggable screw type screw lock down Electrical isolation class 600V Class Il Operating temperature 0 C to 75 C Impedo DUO User Guide SN CTLABM__ Tree eli 26 2 4 Impedo Duo External Interfaces 2 4 1 Physical Appearance Figure 4 shows the front of the Impedo Duo A multi touch user interface high resolution LCD and OLED display icons are shown To access a function on the LCD display simply tap the respective icon once Android is used for the on board user interface and the typical android conventions apply The embedded software functionality is described in Section 5 The OLED display on the right side of the front panel provides the user with operational and health information of the instrument Detail on interpreting the status icons is provided in Section 4 Figure 5 shows the back of the instrument A name plate provides the name and serial number of the instrument as well as a detail layout of the external interfaces of the instrument including the inputs ratings A detail description of the external intrafaces of the instrument is provided in Sections 2 4 2 to 2 4 11 Impedo DE goea d Ag x DO 00 01 42 1970 01 02 CTLAB Figure 4 Front of instrument Impedo DUO User Guide SN CTAB _Z CTAB Zi OLED
23. 1 Reset Instrument will delete all PQ data captured to date as well as all instrument configuration settings from the device Reset Instrument will reboot the device once to complete the reset process HA Manage Data Hb Delete Data File Info Available Disk Space 1 91 GB Space used by data 587 15 MB Space used by logs 440 KB Space used by telemetry 2 23 MB Figure 51 Manage Data File Info Impedo DUO User Guide 87 TILAB NS SZ H S P ANI 6 Impedo Duo Installation 6 1 Mounting the Impedo Duo 6 1 1 Panel Mounting Installation Installation components a Back Plate The plate with the bigger cavity of the two and four drilled holes as shown in Figure 52 b Front Plate The plate with the smaller cavity of the two plates and eight drilled holes as shown in Figure 53 c Four mounting screws and four holding screws as shown in Figure 54 PL Figure 53 The front plate with the smaller cavity of the two plates and eight drilled holes Impedo DUO User Guide 28 rins e O bbb bbb bb bl LS of RAR Holding Mounting Screw Screw Figure 54 Four mounting and holding screws Step 1 Fit the back plate see Figure 52 on the panel door where the instrument should be installed mark the inside cavity and mounting holes on the panel door Step 2 Cut the marked cavity into the panel door and drill the mounting holes as shown in Figure 55 Figure 55
24. 8 6 2 5 Current connections 6 2 5 1 Direct 1A 5A Current Transformer CT Circuits 6 2 5 1 1 Single phase connection The Impedo DUO can interface with 1 A or 5 A CT circuits and has a peak long term current withstand of 6 A and 50 A for 3 seconds Table 13 CT circuit connection layout Uni U n x a Es UEHEVEVESESSC E In I Sr Ee O CURRENTSENSOR Full Scale Range 6 0Anms E luo Class A Figure 64 CT circuit connection layout Impedo DUO User Guide 99 SN CTB AN Ta 6 2 5 1 2 Three phase connection Table 14 CT circuit connection layout las Phase 1 Current Input Phase 1 Current Return Phase 2 Current Input Phase 2 Current Return EM Phase 3 Current Input Phase 3 Current Return Phase 4 Current Input DA Phase 4 Current Return Full Scale Range 6 0Arms CURRENT SENSOR J n n n n n n n n gt gt gt gt gt gt gt gt dv dv fo fo o fo ow o wn wn wn wn wn wn n wn oO D oO oO oO D D oO pa a N N Ww Ww A gt Pas J D DN oO oO oO oO ct ct et cet em Cc Cc Cc 5 5 i 5 5 Figure 65 CT circuit connection layout The Duo can be configured to derive the Neutral current by the summation of the 3 line currents in star connected 4 wire circuits e The Duo can be programmed to derive any one of the missing line currents by the summation of the oth
25. Guide 19 CTLAB NO 2 3 10 Variable time interval trends 10 12 Cycle block RMS and harmonic parameters are aggregated according to IEC 61000 4 30 requirements over a user defined time interval 1 to 30 minutes Clock synchronised parameters are time stamped with a 1 second time resolution 2 3 11 Synchrophasors The Impedo DUO is also a Phasor Measurement Recorder PMU Recording of 50 Hz or 60 Hz synchrophasors can be activated in the configuration setup Please refer to the Osprey Lite user manual for more information Note that this can generate large amounts of data Contact CT LAB for support if interested in a PMU application Impedo DUO User Guide 20 te 2 3 12 Measured parameters MEASURED PARAMETERS Aggregated Aggregated Harmonics Aggregated Inter Harm 1 6 Cycle Harmonics Inter Harmonics VOLTAGE Frequency Hz Voltage Volt Voltage of Nominal Voltage of Fundamental Voltage Phase Angle Degrees Voltage Unbalance V Positive Amplitude Volt V Positive Angle Degrees V Negative Amplitude Volt V Negative Angle Degrees V Zero Amplitude Volt V Zero Angle Degrees Voltage Under Deviation feto _ SS fl To wm O N NP I eno TITTI TIA Impedo DUO User Guide 21 MEASURED PARAMETERS 1 6 Cycle Harmonics Inter Harmonics Aggregated Aggregated Harmonics Aggregated Inter Harm CURRENT Current Ampere Current of Fundamental C
26. Impedo DUO Power Quality Recorder User Manual Version 2 2 CT LAB Pty Ltd PO Box 897 Stellenbosch 7599 South Africa 15 Termo Lane Techno Park Stellenbosch 7600 South Africa Tel 27 21 880 9915 Fax 27 21 880 1088 Email info ctlab co za CTLA B Web www ctlab com ae CT LAB 2015 Table of Contents 1 Safety Instructions 7 LL Sosia 7 1 2 Safety Standards Compliance rriiiiiiiiiii 7 1 3 General Safety Information ss ssssssssuusnunnunnnnnnnnunnnnnnnnnunnnnnnnnnnnnnnnnnnnn nanna 8 1 4 Statements and Notices sssssusssnsnunnnnnunnnunnnnunnnnnnunnunnnnnnnnnunnnnnnnnnn nunnunum nnna 9 141 Statementorie anioni 9 ld PRI 9 dl i lan 9 O 10460 Sii 9 2 Introduction to the Impedo Duo 10 2 1 Impedo Duo Product Description s sssssssssnssusnunnnnnnununnunnnnnnunnnnnnnnnnnnn 10 2 2 Receiving your Impedo DUuO r erre 11 2 2 1 RECEIVING your SNIPMENE csi 12 Ze Unpacking the goods assassina a aa 13 Z3 RUsIPpneia a 13 2 3 InstrumentOVvervieW ica 14 Zum Key Fele siii 14 2 3 2 Impedo DUO External Interfaces cesses sete 16 Zoos POM ipi aorta ia E 17 Zid COMUNICA iria 17 2 3 5 Osprey Pro Enterprise SUpport iii 18 Zoo SONDINO ill lin 18 kx elsa 18 4 0 ERO ln 19 Impedo DUO User Guide SN CTB 2 3 9 1071 2 Cycle Block Recordings 19 2 3 10 Variable time interval trends 20 Zi SICA 20 29 12 Meas ured parameters 21 219 Technical S
27. al 2 terminal input channel 2 Current inputs x 2 e 4X 1 5ACT inputs and e 4X 1 Vms differential current transducer inputs 3 Digital Outputs two sets e 3X Switched outputs with 1 common 4 Digitisation of input signals e 500 kHz sampling of primary input signals e 50 kHz is digitally retained and subjected to the IEC 61000 4 30 Class A signal processing requirements 5 Power supply e PoE and or a 90 300 V AC DC power factor corrected power supply Impedo DUO User Guide 14 e 20 minutes power failure ride through via an internal LiFePO battery 6 Data storage e 4 GB on board storage providing data storage of all IEC 61000 4 30 voltage and current values of 10 minute and or variable trended data up to the 64 harmonic component e The ImpedoDUO utilise the first in first out principle on default but the instrument can also be configured to stop when the memory is full The instrument can however record more than 6 years of 10 min trended parameters including the harmonics and inter harmonics and more than 3 weeks of 3 sec data harmonics and inter harmonics The use of a SD card for data storage enhances the capability of the instrument not to lose data configuration or firmware if without power for more than 1 year 7 Time stamping e GPS time synchronization resulting in a time stamping certainty better than 100 ns e NTP time synchronization as an option 8 Communication e Communicati
28. also record Synchrophasors Refer to Osprey Lite User Guide for a description of each trend type Impedo DUO User Guide 75 ee l 5 8 5 2 Monitors S Meter Config Meter A Monitors Duo 208 SN Meters 1 6th Cycle Interval Meter A Recording Three Phase Voltage Dip Swell Trends Three Phase Voltage Dip Swell Alternative Monitors Three Phase Voltage Interruption Other g P Meter B Recording Single Phase Voltage Dip Swell Single Phase Voltage Dip Swell Alternative Significant Voltage Change Significant Current Change Current Exceedance 10 12 Cycle Block Interval Commit Select Template Monitors are devices used to recognise network events and record diagnostic data when such events occur To configure monitors on the Impedo Duo select the appropriate meter and then select Monitors When a desired monitor is checked a monitor specific dialog is presented to configure the monitor The list of monitors are more than can fit on the display Sliding one s finger vertically up or down over the list of monitors scrolls the list up or down respectively Refer to Osprey Lite User Guide for a description of each event type and its configuration parameters 5 8 5 3 Other The Impedo Duo records waveforms as part of the diagnostic data captured by the monitors or a timed recording The default sampling rate retained samples is the highest option of one samples every 20us To conserve storage space and o
29. cation information to the instrument See Section O for details 6 2 8 3G GPRS Modem The Impedo Duo supports communication via a USB modem Connect the modem to USB port 1 and use the GUI to configure the communication Contact CT Lab for more information Impedo DUO User Guide N 103 7 Maintenance The Impedo Duo is designed to be a very low maintenance device that can operate unattended for years at end It contains no user replaceable parts 7 1 Battery The internal LiFePO4 battery powers the instrument in the absence of power This battery guarantees 2 000 charge discharge cycles If cycled once per day it translates to a 5 year life expectancy The battery is charged when external power is applied to the AC power supply or the instrument is connected to an IEEE 802 3 2008 compliant POE source via either of its Ethernet ports 7 2 Display To clean the Impedo DUO screen never use any type of cleaning solvent such as Windex or similar chemical products Use only water Ideally use water with a lint free scratch resistant cloth microfiber is best to clean the Impedo DUO screen by dampening the cloth slightly Then clean the screen using soft even strokes 7 3 Transport Should the instrument be couriered or shipped please follow these instructions 1 Insert the instrument into a plastic bag to prevent water damage during shipment transit and 2 Protect the instrument properly and also put it inside a padded box
30. cording by checking the meter point status on the OLED display cf Section 4 1 Select Meter A or Meter B text in the Meters list This will fold open the configuration menu To record data ensure that Trends and or monitors are selected and confirmed by selecting the commit bottom Impedo DUO User Guide 72 PAT qa A C LA B de O x C 5 8 2 Detaching a Meter Point ag Meter Config Meter B Summary Vredendal Sub Dorp Meters Name Vredendal Sub Dorp Meter A Recording Description 11 kv from PV Plant Meter B Recording Supply Frequency 50 Hz Trends Voltage Level 11 kV Declared Voltage 11500 V Monitors Topology Delta Othe VT Ratios 100 1 V on chan 1 3 1 1 V on chan 4 CT Ratios 1 1Aonchan 1 3 1 1Aonchan 4 Detach Edit When a meter should no longer record data the meter point can be detached from the meter To detach a meter point select the meter in the navigation menu This will display detail about the meter point Click to detach the meter and confirm the action Confirm that the meter point was detached by checking the meter point status on the OLED display cf Section 4 1 5 8 3 Editing a Meter Point To edit a meter point select the recording meter point the navigation menu Click Edit and follow the steps as for meter point creation in Section 5 8 1 The meter s current state must be Recording Impedo DUO User Guide 73 CTLAB m 5 8 4 Attachin
31. ctrums Impedo DUO User Guide 80 PAT qa A C LA B de ee io game 5 10 PQ Events gt PQ Events Meter Point Basement Star From 20 04 2015 Duration 7 days Load Event Type Duration Min Max Min2 Max2 Min3 Max3 Threshold PQ Events allows the user to browse a very simple list of events captured by the instrument These events are not classified to any specific standard Classification is done offline with the Osprey Software Select the meter point for which the event list must be shown Select the date from which to query as well as the duration in days Click to load the list of events The list can be scrolled up and down by sliding one s finger vertically across the display Impedo DUO User Guide 21 E dE CTLA b i _ 5 11 LogViewer n 21 04 2015 04 00 Duration 1 day s 1 a Load Events Log Viewer is used to browse the system event log This is a diagnostic log that provides insight into the workings of the internal subsystems Select the date and time from which to query and then the duration in days hours and minutes Click Load Events to load the list of log events The list can be scrolled up and down by sliding one s finger vertically across the display Impedo DUO User Guide 89 E dE CTLA b i O 5 12 Timed Recording Meter Point Duo 208 Start immediately Schedule Duration 0 200 seconds milliseconds Interval 0 0 10 hours minutes seconds Rep
32. de 106 CTLAB__ 15 Thermo Lane Techno Park Stellenbosch South Africa 7 5 4 Repair and Calibration Should the instrument be returned to CT Lab for repairs please follow these instructions 1 Insert the instrument into a plastic bag to prevent water damage during shipment transit and 2 Protect the instrument properly and also put it inside a padded box to prevent mechanical damage during transit 3 Complete the fault report and sent it and the instrument to CT Lab o Notify info ctlab com provide details on the instrument and how it was shipped and how it can be tracked and with a copy of the fault report The package and instrument remain the responsibility of the client until delivered to CT Lab The Impedo Duo does not require recalibration Calibration constants are stored on EEPROM that can never be lost for the live of the IC All systems in the Impedo DUO are protected against power interruptions and voltage event with an internal LiFPO4 battery that enables the instrument to shutdown without damaging any system in the instrument The Impedo DUO does not require recalibration Calibration constants will not change and can never be lost for the live of the product s EEPROM IC Impedo DUO User Guide Z CTLAB_ 107 Appendices Impedo DUO dimensions 1 Eiin EE iC JL US h Bi a H l WAZ 108 User Guide Impedo DUO CTLAB 1 1 Panel mounting plates
33. e of the instrument can cause injury or death or cause sufficient energy to be released that can start a fire 1 4 Statements and Notices 1 4 1 Statement of reliability The information in this manual has been reviewed and is believed to be entirely reliable however no responsibility is assumed for any inaccuracies All material is for informational purposes only and is subject to change without prior notice Please see www ctlab com for the latest copy of this document 1 4 2 Proprietary rights This publication contains information proprietary to CT Lab Pty Ltd By accepting and using this manual you agree that the information contained herein will be used solely for the purpose of operating equipment of CT Lab Pty Ltd 1 4 3 Copyright No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language in any form by any means electronic mechanical magnetic optical chemical manual or otherwise without the prior written consent of CT Lab Pty Ltd 15 Termo Lane Techno Park Stellenbosch 1 4 4 Trademarks Impedo DUO Vecto Il Osprey Lite Osprey Pro Xross Trigger Snapshot and 6th sense are registered trademarks of CT Lab Pty Ltd Impedo DUO User Guide CTLAB NO GPS Connection ASB 2 x Ethernet Ports 2 x Current iInpuES multi CONC ECD 2x Current Transducer input S 2x Ve oltage inpu
34. ease contact CT LAB 5 1 EOS Subsystems 5 1 1 Meter Gateway All external communication is handled by Meter Gateway It serves as the main control subsystem of the Impedo Duo As such when Meter Gateway is not running remote communication is not possible The built in watchdog will restart Meter Gateway if it should become non responsive Restarting Meter Gateway has no impact on PQ data capturing and recording Meter Gateway is responsible for updating the OLED display If the time is updated every second Meter Gateway is running It houses amongst others the following components Space Reclaimer This component is part of Meter Gateway and is responsible for deleting data as the internal storage becomes full See Section 5 7 3 1 for details on configuring Space Reclaimer Health Manager This component is part of Meter Gateway and is responsible for powering off the instrument when health parameters exceed their limits see Section 5 7 3 2 for details Time Master This component is part of Meter Gateway and is responsible for managing time on the instrument It determines when time is valid and selects the best source of time Section O describes its configuration Modbus This component is part of Meter Gateway and is responsible for serving Modbus data Impedo DUO User Guide CTLAB N 52 5 1 2 Storer Storer is the PQ recording subsystem If it is running the two meter point status icons are shown at the top of t
35. ecautions must be followed while performing both the installation and service work The terminals exposed during installation commissioning and maintenance may present a hazardous voltage unless the equipment is electrically isolated Failure to properly isolate the instrument can create a risk of electric shock injury or death Failure to earth the instrument will compromise the correct functioning of the internal protection circuitry of the instrument The user must inspect the instrument and all accessories before use attention must be placed on inspecting e Damage to instrument and accessories do not use any damaged equipment e The rating of the input terminals Do not apply input voltages above the rating of the Instrument Do not expose the instrument to extreme moisture and or rain Avoid use should the instrument be exposed to moisture rain The digital output of the instrument must not be used for primary protection functions The digital outputs can however be used for secondary protection functions Impedo DUO is intended for indoor installation and use only If it is required for use Impedo DUO User Guide CTLAB__ e 8 in an outdoor environment then it must be mounted in a specific cabinet or housing which will enable it to meet the requirements of IEC 60529 with the classification of degree of protection IP54 dust and splashing water protected Do not use the instrument in situations where failur
36. elete Segment Delete Date Range From Delete Reset Instrument The Impedo Duo manages its internal storage using Space Reclaimer see Section 5 7 3 1 Manage Data provides the user with the manual data management options as described in Table 6 Select the desired option and press Delete Description Clarification Delete all meter points and associated All meter points and their data data including configurations will be deleted Delete meter point and associated data The specified meter point including its data and configurations will be deleted Other meter points will not be deleted Delete segment Only the specified data segment for the specified meter point will be deleted Delete data range Only data within the specified date range for the specified meter point will be deleted Impedo DUO User Guide 86 Delete data for all meter points Delete all data but no configuration Delete data for meter point Delete all date for the specified meter point but keep the meter point and its configuration Manage Data also allows the user to return the instrument to its factory settings All meter points data and instrument settings such as passwords time zone and Space Reclaimer configuration will be deleted After a factory reset the instrument will reboot Press Reset Instrument to reset the instrument to its factory default The File Info tab provides internal storage usage information see Figure 5
37. er 2 currents in Delta connected 3 wire circuits Impedo DUO User Guide di 100 SN CTAB CTAN 6 2 5 2 Current Transducer Connections 6 2 5 2 1 Single phase connection The current transducer inputs on the Impedo DUO have a peak voltage input range of 2 V 1 4 Vrms Table 15 Current transducer sensor connection layout 1 V Output Current Transducer Circuits sel me sjel me aje me Joy T seyd T aseud HUHHHHEHE ENa ti Va i Va i Vii CURRENT TRANSDUCER Full Scale Range 1 0Vams Figure 66 Current Transducer circuit connection layout Impedo DUO User Guide 101 na 6 2 5 2 2 Three phase connection with neutral return The current transducer inputs on the Impedo DUO has a peak voltage input range of 2 V 1 4 Vrms Table 16 Current transducer sensor connection layout Terminal T aseud HHHHHHHE CURRENT TRANSDUCER Full Scale Range 1 0Vams Figure 67 CT circuit connection layout User Guide 102 Impedo DUO CTLAB_ The Impedo DUO can be configured to e Derive the Neutral current by the summation of the 3 line currents in star connected 4 wire circuits e Derive any one of the missing line currents by the summation of the other 2 currents in Delta connected 3 wire circuits 6 2 6 Ethernet Based Communication See Section O and for details 6 2 7 GPS A GPS antenna can be connected to the instrument The GPS provides accurate time and lo
38. er points The meter point is used as the site ID and is linked to a specific metering circuit The meter point information includes Descriptive e Instrument information o Serial number Calibration date Calibration issued by Firmware Time source o Configuration date e Site name e Description e Voltage level e Panel name e Substation e VT connection point e Contact person e Contact number O O O 0 Voltage information Configuration Star Delta Single phase or DC e Frequency Declared voltage VT ratio Current information e Current sensors Current transducers e CT ratio e Derive a channel Trend e Selection of trend from 200ms block data up to 30min RMS data e PMU synchrophasor data Impedo DUO User Guide e e 54 Monitors e Selection of EC61000 4 30 event monitors Should the user require the full list of descriptive information as provided above please contact CT Lab to unlock the full list as the instrument only present some of the above information A meter point can be re used when an instrument is re installed for instance during an investigation or if the instrument was moved for a period of time by attaching the meter point during installation A meter point is detached in Osprey Lite or on the Impedo DUO in the configuration app to stop recordings or attached to proceed with data recording for the specific meter point A meter point can only be created when the ImpedoDUO has a
39. etitions 1 1 24 Diagnostic data to be recorded Waveforms 1 6th Cycle RMS and Phasors 10 12 Cycle Block RMS and Phasors 10 12 Cycle Block Harmonics Commit Stop Timed Recording provides a mechanism to record detail diagnostic data at a specified time Select the meter point for which the recording must be made Choose between starting to record immediately or starting at a scheduled time Select the recording duration lt 1 minute Recordings can be repeated with a specified interval The interval must be at least as long as the recording duration Finally select the types of data that must be captured by the recording and press Commit While the recording is in progress Realtime View will display the event type as Timer A scheduled recording or a recording in progress can be cancelled by pressing Stop Scheduling a new recording will overwrite a previously scheduled one Impedo DUO User Guide f 83 5 13 Export lt gt Export Settings Harmonic Selection USB Device SMI USB DISK USB1 Last Export Date N A Export From Export All Data captured on the Impedo Duo can be exported to a USB device using Export Plug a FAT32 formatted USB device into either USB port 1 or 2 Select the desired USB device from the drop down If the device was used to export data before the last export date will be shown If the device was not used before the date will show as N A not available The user may
40. g a Previously Created and Configured Meter Point Select Meter Point Vredendal Sub Dorp Cancel A meter point that was previously created and then detached can be reattached at a later point To reattach a meter point select the desired meter and click Attach on the bottom right hand of the screen Select the desired meter point and click Select The meter point will now be attached to the meter The last know configuration will be applied including trend and monitor configuration 5 8 5 Configuring a Meter Point To configure a meter point select meter to which it is attached The meter must be stopped before a meter point can be attached to it Impedo DUO User Guide Pi 74 A CTLAB_ e ee 5 8 5 1 Trend configuration N Meter Config Meter A Trends Duo 208 SN x Time Based Trends Meter A Recording 10 Minute Interval Harmonics Min Max Trends 1 Minute Interval Harmonics Monitors 10 Second Interval Frequency Other Billing Meter B Recording 10 12 Cycle Block Trends n x 200ms Interval 15 Block Interval 3 seconds Block Interval 0 ms Synchrophasor Trends w 3000 Cycle Interval Commit Select Template The different trended data to be recorded has to be activated The Impedo Duo can record all the IEC61000 4 30 prescribed trend periods In addition to these two custom trend periods are available should the user need it The Impedo Duo can
41. ged to within 100 ns accuracy Impedo DUO User Guide 50 SN CTB 4 9 Connection to server es The instrument is connected to at least one Osprey server for example Osprey Lite or Osprey Pro 4 10 Ethernet connectivity a DD a Only Ethernet port 1 is connected T Only Ethernet port 2 is connected 7 Both Ethernet port 1 and 2 are connected No Ethernet connectivity 4 11 Time of Day and Date The time of day and date is displayed at the bottom of the OLED The time is updated every second Should this not be the case the Meter Gateway subsystem is not executing as intended see Section 5 1 1 4 12 Device in error state in an error unhealthy state If no external action is performed within 5 When the crossed spanner and hummer icon is displayed the instrument is minutes it will attempt to restart the Embedded Operating System EOS Impedo DUO User Guide te 51 5 Embedded Operating Software EOS The Embedded Operating System EOS is based on a dual Linux Android configuration Linux provides infrastructure for low level functions and Android provides the Graphical User Interface GUI The Impedo Duo is supported by the Osprey Lite and Osprey Pro software suites The latest version of Osprey Lite is available for download at www ctlab com Please refer to the document Osprey Lite User Guide for information on using Osprey Lite to interact with the Impedo Duo For information about Osprey Pro pl
42. he OLED status display see Section 4 1 See the Osprey Lite user manual for more information on the restart procedure of the Storer 5 2 Communicating with the Impedo Duo All communication with the Impedo Duo is IP based To secure communication over open networks all traffic is encrypted The encryption requires two passwords the fleet password and the instrument key The fleet password is a shared secret across all servers and instruments belonging to the fleet The fleet password must be entered on the Impedo Duo using Registration see Section 5 6 The instrument key is unique to each instrument and comes preloaded on the instrument The key is also provided on the USB storage device shipped with the instrument In order to communicate with the instrument the instrument key must be loaded into the server see Osprey Lite User Guide for instructions on registering an instrument with Osprey Lite The Impedo Duo communicates using several well known ports Ensure that ports 27030 27045 are not blocked by any firewall between the instrument and the Osprey server These ports must also be forwarded should any network address translation occur between the instrument and the Osprey server Both the fleet password and the instrument key are required before communication with the Impedo Duo is possible The Impedo Duo communicate on ports 27030 27045 Impedo DUO User Guide Z CTLAB_ 53 5 3 Data Recording 5 3 1 Met
43. he date of shipment whichever occurs first The warranty period for new spare parts and components sold by CT Lab Pty Ltd is twelve 12 months from the date of shipment The warranty period for repaired or refurbished parts repaired by CT Lab Pty Ltd is ninety 90 days from the date of shipment unless repaired pursuant to a warranty in which case the repair is warranted for the time remaining of the original warranty period Warrantee repair a If any field device fails during the applicable warranty period CT Lab Pty Ltd can either repair or replace the Failed Good provided the Customer a returns the product to the location designated by CT Lab Pty Ltd or accredited resellers within the warranty period and b prepays the freight costs both to and from such location Customer shall in all cases be responsible for the In Out Costs If CT Lab Pty Ltd determines that the returned good is not defective Customer shall pay and or reimburse CT Lab Pty Ltd for all expenses incurred by CT Lab Pty Ltd in the examination of the returned good 105 CTLAB_ 7 5 2 b Customer s remedy under the warranty for services shall be at CT Lab Pty Ltd sole cost and expense to correct or re perform any defective or non conforming services to assure compliance with the contract requirements Warranty Exceptions This General Limited Warranty does not include costs for removal or installation of products or cost
44. he fault report and sent it and the instrument to CT Lab o Notify info ctlab com provide details on the instrument and how it was shipped and how it can be tracked and with a copy of the fault report If an instrument is returned to CT Lab due to damage during shipment please take picture of the box and the instrument before returning the instrument in the packaging supplied with the instrument The package and instrument remain the responsibility of the client until delivered to CT Lab Impedo DUO User Guide CTLAB NO 13 2 3 Instrument Overview 2 3 1 Key Features The Impedo DUO has two independent IEC 61000 4 30 Class A meters in one instrument with both voltages and currents for two 3 phase feeders 1 Voltage inputs x 2 e Class A performance over all of the input range inclusive of 63 5 V if L N measurements are done in a 110 V line line VT circuit e 6 terminals are used for 4 voltage input channels with maximum input ratings of 600 V o The first 4 terminals connect 3 different phase voltages such as ina 3 phase system o Input channel 1 3 is referenced to a neutral 4 terminal connection This 4 terminal acts as a reference channel and can be any phase voltage if a 3 phase line line voltage circuit is measured o lIfit is a 3 phase line neutral voltage circuit then the 4 terminal will be connected to the neutral voltage o The 5 and 6 terminal is the 4 channel and a fully differenti
45. le data 2 3 8 Event Recording Users can customise the recording of an event The IEC 610000 4 30 definition of for example a dip event can be changed to improve the understanding of phenomena of concern Upper and or lower thresholds to define an event can be set by the user based on waveform 1 6 sense 10 12 cycle block and aggregated parameters Single phase and multiple phase triggers can be defined When a threshold is exceeded the Impedo DUO will retain pre and post diagnostic information of the event TM A Please refer to the Osprey Lite user manual for more information on event recordings 2 3 9 10 12 Cycle Block Recording The Impedo DUO records all RMS and harmonic data from each 10 12 cycle block 200ms block for both voltage and current as prescribed by the Class A performance requirements of the IEC 61000 4 30 edition 3 These block values contain both amplitude and angle information of all voltage and current harmonic components up to the 64 harmonic order Each block is time stamped with a 1 us time resolution and within a 100 ns time uncertainty The user can average N x blocks to reduce the sampling rate for the number of blocks up to 299 blocks Please refer to the Osprey Lite user manual for more information on 10 12 cycle block intervals and down sampling t When GPS synchronized Averaged block harmonic and unbalance phasors do not contain angle information Impedo DUO User
46. m extension cable e Power Connection set e 2 x Voltage connection set Wiring and 5 clips included e 2x Current sensor and current transducer connection set e 6x US Current Clamp 250 500 1000 5A e 6x Micro Clamps 5A 1V Impedo DUO User Guide 114 CTLAB N AA Portable case Magnetic GPS antenna 15m extension cable Voltage connection wiring Voltage connection clips Current connection wiring US clamps 250 500 1000 5A CT Micro clamps 5A 1V Pic tails for safe connection to the ImpedoDUO Impedo DUO User Guide eres 115 Screw driver USB with meter key Ethernet cable Impedo DUO User Guide a 116 6 Glossary Instrument Meter Meter Point Fleet password Instrument Key Lock Screen OLED display Impedo DUO Electronic device such as the Impedo Duo Component of an instrument that performs measuring the Impedo Duo contains two meters The physical measuring point that is measured by a meter Used to secure communication across a fleet of instruments Unique key that is required to authenticate an instrument Screen first presented to user upon leaving power saving mode White status display on the right side of the Impedo Duo User Guide eee 117 7 Symbols and Abbreviations Impedo DUO UI GUI PQ OLED NTP RTC ppm PDU VT CT RMS THD User Interface Graphical User Interface Power Quality Organic Light Emitting Diode Network Time Protocol Real Time Clock Parts Pe
47. n free space MB 0 Checking period s 30 Delete from active Meterpoints only Figure 26 Space Reclaimer configuration Space Reclaimer deletes old data when the internal storage becomes full It can be configured to delete data oldest first when reaching a specified percentage of storage usage or when the remaining space available reaches a set size If both the percentage usage and minimum free space is set the limit that is reached first will apply If the maximum percentage usage is set to 100 and the minimum free space is set to zero and the storage usage reaches 100 the system will detach the meter points and stop recording The period between storage checks is configurable Impedo DUO User Guide ASTAS 64 5 7 3 2 Health Shutdown Health Shutdown Enable Figure 27 Health Manager configuration Health Manager periodically checks the system health The battery charge level and system temperature is shown on the OLED display Health Manager will shut down the instrument to protect it from damage if the system temperature drops below O C or rises above 75 C Health Manager will shut down the instrument to protect the battery from damage if the battery charge level drops below 0 Uncheck the Enable checkbox see Figure 27 to instruct Health Manager to disregard the system health instrument should a health based shutdown be indicated A Disabling Health Manager may cause permanent damage to the 5
48. n infrastructure The Impedo Duo will therefore be available at all times if the communication infrastructure stays active 2 4 3 Voltage Inputs Each individual meter contains 4 resistive differential voltage inputs made up of 6 terminals as shown in Figure 10 and Figure 11 The first 4 terminals are used for 3 voltage inputs Vi V2 and V3 are Neutral Vcom referenced V N V5 N V3 N in a four wire Star connection Figure 10 and referenced to any one of the three phases in a 3 wire Delta connection Figure 11 Terminal 5 and 6 are used for the 4 Vai Va voltage input It is a full differential measurement normally used for Neutral to Earth measurement The voltage inputs terminals can accommodate conductors with sizes up to 2 5 mm Figure 10 shows the voltage connections for a 3 phase 4 wire star system Power is calculated per phase and arithmetically added to obtain the 3 phase powers Figure 11 shows the voltage connections for a 3 phase 3 wire delta connection Three phase power is calculated by the 2 watt meter method If voltages are connected in star 4 wire on the terminals the user can select star 4 wire or delta 3 wire topology in the software Impedo DUO User Guide CTLAB NO 32 Phase 4 Ref Phase 4 Neutral Phase 3 Phase 2 Phase 1 Full Scale Range 600V ans _ VOLTAGE SENSOR T aseud 7 aseud aseud Figure 11 Impedo Duo 3 wire delta connection on meter B Impedo DUO Use
49. n the bottom right The meter must be stopped before a meter point can be created for it Impedo DUO User Guide 68 5 8 1 1 Meter Point Detail Name Vredendal Sub Dorp Description 11 kV from PV plant Voltage Level 11 kV Meter Enter the meter point name description and the voltage level nominal voltage under which the meter point operates Click Next to continue 5 8 1 2 Configure Voltage Channels Pr Meter A B Configure Voltage Channels Topology Delta Supply Frequency e 50 60 Hz Declared Voltage h 1500 V 5 difference to voltage level Link Channel 4 Chan 1 3 Ratio 100 1 V 110Vonterminal at specified voltage level of 11000V Chan 4 Ratio 1 a Select the installation topology supply frequency and the declared voltage Declared Voltage can be different from the nominal voltage in that the utility can operate the network at a higher level than designed This ensure that the client at the furthest end of the line still receive adequate voltage The difference in percentage is indicated next to the declared voltage Enter the VT ratios If the 4 channel is used with a VT that has a different ratio than the main VT uncheck the Link Channel 4 checkbox to enter the different ratio for channel 4 The voltage on the measuring terminal at the nominal primary voltage for the specified VT ratio is displayed Click to continue Impedo DUO User Guide LAB N SE rats n 69 f P f F h
50. nal acts as a reference channel and can be connected to any phase voltage or neutral point if a 3 phase line line voltage circuit is measured e f it is a 3 phase line neutral voltage circuit then the 4th terminal will be connected to the neutral voltage e The 5thand 6th terminal is the 4th differential channel Impedo DUO User Guide CTLAB N 16 o It can be used to for example to measure the difference between neutral and earth 2 3 2 2 Currents Permanently installed 1 A or 5 A CT s or clamp on CT s interface directly to the galvanically isolated current inputs The instrument calculates the missing current by assuming the sum of all currents is zero Please refer to Section 2 4 4 for more info Alternatively 1 Vrms voltage output current transducers can be used to measure current Current to voltage transducers can interface directly to 4 low voltage differential inputs Please refer to Section 2 4 5 for more info 2 3 3 Power sources The instrument is powered from a power factor corrected AC supply input 90 300 V AC DC It can also be powered from an IEEE 802 3 2008 compliant PoE Plus lt 12 W source The internal LiFePO battery powers the instrument in the absence of power This battery guarantees 2 000 charge discharge cycles If cycled once per day it translates to at least a 5 year useful life Please refer to Section 2 4 2 for more detail 2 3 4 Communication Two 2 Gigabyte E
51. nd the maximum supply power to the Impedo Duo is actively limited to 30 VA enabling Impedo Duo to be powered directly from 110V 50 60Hz VT circuits An internal electronic fuse protects the Impedo DUO from over and under voltage conditions The Impedo DUO will automatically disconnect from mains if excessive current is drawn from the universal AC DC supply input port When this protection was activated it needs a few minutes to cool during which the Impedo DUO will not restart even with valid mains voltage Impedo DUO User Guide 30 CTLAB N O CCC i During a power interruption failure the internal battery will power the instrument for 20 minutes When the battery charge drop below 50 of full capacity 0 on the OLED display the instrument will gracefully shut down to protect the battery The Safety Earth terminal connects all exposed metal parts to external earth When power is restored the instrument will automatically restart within 60 seconds if the battery status is above 30 of full capacity or first recharge until the battery reach 30 and only then restart During this period an icon on the OLED display will indicate a battery warning symbol Port 2 Port 1 Figure 9 Ethernet ports Impedo DUO User Guide na 31 IEEE 802 3 2008 compliant Power over Ethernet PoE Plus is available on both Ethernet ports at 30 to 60 V The PoE capability enables the Impedo Duo to be powered through the communicatio
52. ng time creep Time jumps may cause data discontinuity 5 4 How to navigate within EOS The Back button returns the user to the previous screen in an application When on the first screen of an application it will return you to the Duo home screen The Keyboard Hide button replaces the back button whenever the E keyboard is visible onscreen Pressing it hides the keyboard cm The Home button returns you to the home screen immediately The Window List button brings up a list of applications currently CJ active Touch an item in the list to navigate to that application Impedo DUO User Guide DI CTAB NN Se gt The Power button Touching the power button will lock the Q instrument and will display the unlock screen Within a few seconds after the unlock screen was displayed the main display will be shut down to save power To power down the entire instrument the user must touch and hold the power button A Power Off window will pop up to ask the user to confirm powering the instrument down Pressing the OK button will power the instrument down 5 5 Application Selection Screen The application selection screen is used to select the application to execute The different applications will be described in the remainder of the Chapter Figure 21 Application selection screen also called launch screen Impedo DUO User Guide 58 na A 5 6 Registration Instrument Type Ae Secure Communication Password Acco
53. o indicate operating or maintenance procedures to Caution be respected in order to prevent damage or destruction of equipment Used to call attention to potential dangerous situations or Warning danger in general that requires specific procedures to be respected in order to prevent personal injury A A 1 2 Safety Standards Compliance The instrument complies with the IEC61010 1 safety standard e Pollution Degree 2 e Over voltage category CAT III e Measurement category CAT III The instrument complies with the IEC60529 protection standard e Penetration of dust amp water Class Impedo DUO User Guide SN CTB e P Rating IP52 e Inadvertent contact 1 3 General Safety Information Installation and maintenance of the instrument should only be performed by a qualified and certified electrician technician with appropriate training and experience with high voltage and current devices The instrument must be installed in accordance with the approved national electrical codes If the instrument is used in a manner not specified by the manufacturer protection from electric shock fire etc provided by this equipment may be compromised When the instrument is in operation dangerous voltages will be present in certain parts of the equipment Failure to observe warning notices incorrect use or improper use may endanger personnel and the instrument and also cause personal injury or physical damage The standard safety pr
54. on is via Ethernet e Modbus over Ethernet e DNP3 over Ethernet e EC 61850 optional 9 Advanced triggering e User configurable triggering between different instruments the patented Xross Trigger feature Described in the Osprey Lite user manual 10 Configuration of instrument e Multi touch user interface provides configuration and real time information display or Impedo DUO User Guide CTLAB NO 15 e By means of an Ethernet connection to a local laptop with Osprey Lite installed 11 Data analysis and reporting e Osprey Lite is supplied free of charge and continuously updated e Download from www ctlab com e t generates both NRS 048 and EN 50160 PQ reports e It allows basic and advanced analysis of PQ waveform events and trends e Data can be exported to in csv and PQDIF format for additional analysis in third party software packages Data downloading can be automated by configuration of the Impedo DUO with Osprey Lite All measurable PQ parameters can be recordable simultaneously 2 3 2 Impedo DUO External Interfaces 2 3 2 1 Voltages The two 3 phase voltage inputs to the Impedo DUO interfaces directly to 110 V VT circuits or directly to mains connections which has to be less than 600 V line to neutral e Voltage measurements are differential e 6 voltage input terminals are used for each meter e Input channel 1 3 is referenced to a neutral 4th terminal connection This 4th termi
55. or detail on setting passwords for the Impedo Duo Password protection is disabled by default amp Impedo Duo Login To unlock enter credentials if required and press Unlock rd Impedo DUO User Guide crias 45 3 5 Shutting down There is no physical power OFF button on the Impedo Duo To power off the instrument first unlock the user interface UI If necessary terminate the current running application Press and hold the power off button see below located on the bottom of the display A dialog will pop up to confirm the action Select OK to power off the device The shutdown sequence may take up to 60 seconds Power off button The shutdown sequence may take up to 60 seconds If the power off button is released before the power off confirmation dialog is displayed the device will go to the unlock screen Impedo DUO User Guide CTAB 46 3 6 Power Cycling with the Reset Switch The Impedo Duo PDU stays powered even if the main processor is powered off In this mode the built in RTC the PDU and the health sensors receive power After being fully charged the Impedo Duo can be safely stored in this state for up to 3 months Power can be removed from the entire instrument by the reset switch The reset switch is reachable via a small hole close to the GPS port on the right side of the instrument see Section 3 1 Figure 19 A paperclip or similar device is required to toggle the switch The instrument i
56. peciicdoOn assess disse raciais 24 2 4 Impedo Duo External InterfaCeS rire 27 ZA4 1 Physical ppearanco anna E 27 42 Comer UPON O 29 ZH VC IA LAA Current Sensor Mpui saa iii 34 ZAG Current Transducer INpuls sssssimianiin innana 36 VA Do Relay ONEN ii 37 kb Gotica 38 240 ERP oi 39 24 93 USB Peripheral Ports 40 Z440 gt OLED Dpr 40 Z 411 MUGWie TOUCK Display ans ninaa 41 Z b MAMA A cose estas A aa ra 41 dol WEI 41 3 Operating Instructions 42 3 1 Precautions when first using the device rriii 42 3 2 Checking the Battery Level asaisassasiaiias sassstasai ias ias ias 43 3 3 Powering up the Impedo Duo rie 44 3 4 Impedo Duo Unlock Screen rie 45 5 5 Shutting dOWllisci aiar 46 3 6 Power Cycling with the Reset Switch 47 4 OLED Information Display 48 Impedo DUO User Guide SN CTB AM Meter POIS usinas inside inc ade adotei ada 48 4 2 Serial Number licia 49 4 53 IP AGN CSS ni 49 4 4 Firmware Versione 49 4 5 Temperature lia 49 46 Battery als 49 4 7 On Board Storage Usage sssssssssssnsnununnnnnnunnnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnn nannan 50 4 9 MCS ONE CG cali 50 49 Connection to SErver isisisi inanasan iaoiai de nd 51 4 10 Ethernet connectivity Licia 51 4 11 Time Of Day and Date sacadas assess eaea 51 4 12 DEVICE in error State iii 51 5 Embedded Operating Software EOS 52 5 1 EOS SUIS VS CEM ua os si eis SU aaa 52 Dols MEG 52 Dez Sela 53 5 2
57. r bandwidth costs applying a subsample rate can reduce the sampling rate This setting will only affect the diagnostic waveform data stored not any statistics calculated for the event Impedo DUO User Guide e 76 5 8 5 4 Commit Once all settings in all sections have been set click to apply the configuration to the meter An information box will pop up to inform the user that the new configuration was committed information box will inform the user of a successful configuration change f Configuration is only applied after pressing an 5 8 5 5 Predefined Templates The Impedo Duo comes preloaded with specific measuring templates To apply a template select the meter point and then either Trends or Monitors Click and select the desired template Press Apply to apply the template to the configuration To effect the configuration press Commit An information box will pop up to inform the user that the new configuration was committed Impedo DUO User Guide CTLAB NO 11 AM 5 9 Realtime View Realtime View provides a detail view of data captured in real time Each data update comprises measurements taken over a 10 12 cycle 200ms period Data capturing is enabled disabled by toggling see Figure 41 Navigate between the different views with and lt Only one meter s data is displayed at a time 5 9 1 Fundamentals AM Realtime View Fundamentals Meters Meter A Basement Star
58. r Guide crias 33 Table 2 Voltage connection layout Description Phase 1 Phase 2 Reference for V3 3 Phase 4 Reference for V A single 600 Vacems voltage input range with 20 mV resolution simplifies installation and ensures good accuracy for both the fundamental component and harmonics A high impedance input prevents the accidental shorting of VT inputs to system ground and eliminates ground loops Differential resistive inputs assure a safe stable analog input stage with minimum phase error high bandwidth and zero temperature drift 2 4 4 Current Sensor Inputs Each individual meter contains 4 galvanically isolated resistive current shunt inputs with input impedance of 20 mQ and a full scale measurement range of 6 Arms Resistive shunts provide excellent AC and DC response zero offset drift and very low temperature drift The 3 second over current withstand rating of each input is 50 A The galvanic isolation voltage between each channel and earth is 1 kV The current inputs are available on an 8 terminal lockable connector plug with screw terminals for meter A and B as shown in Figure 12 Each terminal can accommodate conductors with size up to 2 5mm Impedo DUO User Guide Z CTLAB_ 34 Impedo DUO Table 3 Current sensor connection layout a pre cone et ss erases come tm _ e fu pre cure tm _ Full Scale Range 6 0Agms CURRENT SENSOR EE E PBA
59. r Million Power Distribution Unit Voltage Transformer Current Transformer Root Mean Square Total Harmonic Distortion User Guide te 118
60. s If sufficient power is available the PDU will switch on the OLED to display a power switch icon When touching the power switch icon the PDU will animate the gesture required to switch on the instrument A small processor icon followed by a check mark icon will display on the OLED after recognition of a valid start gesture The check mark symbol indicates successful booting of the embedded operating system Next the main display will show a start up animation which is then replaced by the final user interface once booting completed The OLED will show the running information status Power switch icon Booting operating system Operating system booted The instrument will not power up until sufficiently charged see Section 4 6 External power is required if no response was received on the OLED display Impedo DUO User Guide 44 Z CTLAB_ 3 4 Impedo Duo Unlock Screen The Impedo Duo will switch the main display off after 20 seconds without input from the user to save power and to protect the instrument from unauthorised access Touching the glass panel will switch on main display with the unlock screen with an unlock button on the upper right corner of the screen as shown in Figure 19 The unlock screen is password protected the user may choose to enable or disable password protection Touching the power off button Section 3 5 will immediately return the device to the unlock screen Refer to Section 5 7 3 4 f
61. s for replacement labor or materials which are the responsibility of the Customer The warranties in this General Limited Warranty do not apply to goods that have been installed improperly or in non recommended installations installed to a voltage transformer VT or current transformer CT that is not functional or is not in safe operating condition or is damaged or is in need of repair tampered with modified or repaired with parts or assemblies not certified in writing by CT Lab Pty Ltd including without limitation communication parts and assemblies improperly modified or repaired including as a result of modifications required by CT Lab Pty Ltd converted altered damaged read by equipment not approved by CT Lab Pty Ltd If CT Lab Pty Ltd identifies any exceptions during examination troubleshooting or performing any type of support on behalf of Customer then Customer shall pay for and or reimburse CT Lab Pty Ltd for all expenses incurred by Sensus in examining troubleshooting performing support activities repairing or replacing any Equipment that satisfies any of the Exceptions defined above The above warranties do not apply in the event of Force Majeure Technical Support Please contact CT Lab for technical support CT Lab info ctlab com 27 21 880 9915 7 5 3 Sales Assistance Please contact CT Lab for any sales assistance CT Lab info ctlab com 27 21 880 9915 Impedo DUO User Gui
62. s powered when the switch is in the depressed state Note that removing power from the instrument also removes power from the RTC Upon start up after a power cycle the RTC is in an unknown state and the instrument must first be connected to a valid time source GPS or NTP to ensure it measures correctly After power cycling the instrument with the reset switch the RTC is in an undefined state the PQ recording system will require a valid time source after power up before it can function correctly Impedo DUO User Guide 47 CTLAB NO 4 OLED Information Display The OLED information display is located on the right side of the front panel as depicted in Figure 4 It is used to provide permanent visual feedback of the instrument status as shown in Figure 20 K 9 Meter points Duo000 000005 4 Serial Number IP address Firmware version Temperature Battery Status On Board Storage Usage Time source Ethernet Connection to ini connectivity server 16 02 50 4 2015 06 04 Time and Date Figure 20 ImpedoDUO OLED display 4 1 Meter points If no meter icon is displayed or is crossed out the instrument is not recording The reason may be that the instrument does not have valid time or that the recording subsystem was disabled see Section 5 1 2 Meter side A is configured and recording Meter side A is configured and recording Meter side A is not configured and not recording SO o Meter
63. ser Guide na 42 3 2 Checking the Battery Level After switching the instrument ON with the reset button Section 3 1 touch the LCD screen to activate the multi touch screen and OLED If the OLED display does not show a flashing power icon as shown in Section 0 the battery is discharged too far and the instrument will not power up before sufficient battery charge level has been obtained When the instrument is connected to mains see Section 6 2 1 and the battery icon flash on the OLED the instrument battery level is below the operational level Wait until the battery disappears and the flashing power icon is visible on touching the LCD screen The fast charge mode will require 2 hours to restore the battery to 100 state of charge instrument must be powered down A maximum of 40 minutes charge time is required to restore to the point where the instrument can be started See Section 4 6 for a description of the battery status indicator that is visible once the instrument is switched on The instrument will not power up until sufficiently charged see Section 4 6 Impedo DUO User Guide SN CTB 43 3 3 Powering up the Impedo Duo The Impedo Duo does not contain a physical power switch A start gesture on the OLED display is required to switch the instrument ON single finger slide from top to bottom On the first touch anywhere on the glass panel the Impedo Duo Power Distribution Unit PDU will scan the battery statu
64. server for equipment connected to port 1 IEEE 802 3 2008 compliant Power over Ethernet PoE is available on both Ethernet ports The PoE capability enables the Impedo Duo to be powered through the communication infrastructure The Impedo Duo will therefore be available at all times while the communication infrastructure stays on line ETH 2 DOC __ ETH 1 MU Figure 16 Ethernet ports Impedo DUO User Guide CTAB CHA 39 2 4 9 USB Peripheral Ports Two powered USB2 0 compliant 450 MBit USB ports are used to interface to external peripherals like Memory sticks WiFi Dongles GPRS 3G GSM modems RS485 serial ports external I O modules and etc Each port can power peripherals with a peak power of 2 5W However it is recommended not to exceed simultaneous average power of 2 5W i j j j j i 4 Figure 17 USB ports 2 4 10 OLED Display The OLED display is used to display the start icon to start the instrument and instrument status A multi touch gesture single finger slide from top to bottom is used to switch on the instrument see Section 0 The detail of each icon on the OLED display is discussed in Section 4 Impedo DUO User Guide 40 CTLAB eee i 2 4 11 Multi Touch Display A high resolution full colour multi touch enabled display is used to e Configure the instrument preferences and PQ monitors e Provide an installation wizard with real time voltage and current information during installa
65. side A is not configured and not recording Impedo DUO User Guide 48 CTLAB e i 4 2 Serial Number The instrument serial number is displayed below the meter point icons as shown in Figure 20 This number must match the serial number on the nameplate plate of the instrument 4 3 IP Address If a live Ethernet cable is plugged into ETH 2 the IP address displayed on the OLED is either the assigned static IP address or the IP address received via a DCHP server on the network when configured to receive a DHCP IP address If no cable is plugged into ETH 2 the IP address is the fixed IP addressed as for ETH 1 Refer to Section O for instructions on configuring ETH 2 4 4 Firmware Version The current firmware version is displayed below the IP address as shown in Figure 20 4 5 Temperature M269 The temperature icon shows the internal temperature at which the device is currently operating 4 6 Battery Status The Impedo Duo will automatically power off when the battery is depleted with absence of the primary power source The battery status icon indicates the current charge level as shown in Figure 20 The instrument will power up automatically when external power is applied If the battery was depleted below a safe operating point but external power is available the instrument will still power up but indicate that no surplice charge is available Should external power fall away during this period the instrument will immediately power
66. tacts with a common return path The relay outputs are available on an 8 terminal lockable connector plug with screw terminals Each terminal can accommodate conductors with size up to 1 5mm Table 5 Relay switch connection layout Switch A1 Switch A2 Si S2 s E Sa Ss Se 8 6 sn common OA 350 MAX SWITCHED OUTPUTS 7 Switch B3 Switch B2 Switch B Common Switch B1 Switch A Common Figure 14 Relay switch connection layout Impedo DUO User Guide SN CTAB CAT 37 2 4 7 GPS The female SMA port is used to interface an external powered 3V3 GPS antenna to the Impedo Duo The built in GPS is used to measure absolute time The Impedo Duo locks its internal clock to within 100ns from absolute time GPS antenna connector Figure 15 GPS connector Impedo DUO User Guide 38 n ie 2 4 8 Ethernet Ports The instrument has two Gigabit Ethernet ports as shown in Figure 16 The IP address of port 1 is fixed at 192 168 7 1 The instrument serves as a DHCP server for the network connected to this port The IP address of port 2 can be set using the GUI see Section 0 and is also used to interface to GPRS 3G routers for remote communication Do not connect Ethernet port 1 to a network with an active DHCP server as this may cause the network to stop functioning properly The IP address of Ethernet port 1 is fixed at 192 168 7 1 The instrument serves as a DHCP
67. ted to an enterprise network This means the laptop PC needs to be setup to receive its IP configuration through DHCP Clicking on the Address Book page of the Osprey software connects the instrument and the laptop without requiring any IP information The Impedo Duo serves as a DHCP server on ETH 1 Do not connect Ethernet port 1 to a network with an active DHCP server as this may cause the network to stop functioning properly The IP address of Ethernet port 1 is fixed at 192 168 7 1 Impedo DUO User Guide 62 Z CTLAB_ 5 7 2 Manage Instrument Control Restart Storer Service Restart Meter Gateway Service Settings Enable Storer Service Disable Storer Service Enable Modbus Protocol Disable Modbus Protocol Cancel Figure 25 Manage Instrument is used to manage EOS subsystems Table 6 Manage Instrument options Restart Storer Service Restart the PQ recording subsystem Restart Meter Gateway Service Restart instrument control ila Enable Disable Storer Service Enable Disable the PQ recording subsystem Enable Disable Modbus Protocol Enable Disable Modbus SCADA Impedo DUO User Guide 63 oa While the Storer service is disabled no PQ data will be recorded Disable Modbus if not required as this subsystem requires more power to operate and will drain the battery faster when no external power is available 5 7 3 Miscellaneous 5 7 3 1 Space Reclaimer Space Reclaimer Max usage 95 Mi
68. thernet ports facilitate local and networked external communication One port is used to interface with corporate networks DHCP or fixed IP support The second Ethernet port is used to create a local network by means of being a local DHCP server Please refer to Section 0 for more detail The remote support software supports automatic service discovery protocols Laptops when connected to the Impedo DUO will receive an IP from the instrument The remote support software can automatically discover which instruments are connected to the local network Please refer to the Osprey Lite user manual for more information Impedo DUO User Guide 17 CTLAB__ EE 2 3 5 Osprey Pro Enterprise Support When connected each instrument automatically establishes a permanent secure communication link to a corporate server local or internet based An instrument management system IMS keeps track of each instrument s location configuration health telemetry and PQ data recorded Downloading of data is automated and recorded data can be accessed via the Internet in graphical tabled and report form as and when it becomes available Raw data can be analysed in Osprey Pro or exported for further analysis in for example Microsoft Excel or Matlab Osprey Pro simplify the analysis of waveform events such as dips and swells by the time aggregation of multiple waveform events to single network incidents Osprey Pro classify and report
69. tion e Provide real time waveform RMS phasor and harmonic feedback The detail of each icon on the Multi Touch display is discussed in Section 5 2 5 Firmware The Impedo DUO firmware revision is shown on the OLED and also in Osprey Lite when connected to the instrument please see Osprey Lite user manual for more information 2 5 1 Upgrading The Impedo DUO support firmware upgrade via Osprey Lite please see Osprey Lite user manual for more information Impedo DUO User Guide e 41 3 Operating Instructions 3 1 Precautions when first using the device Ensure that the Impedo DUO s battery is charged and that mains power is connected to the instrument power supply before switching the instrument ON using the reset button Figure 18 The instrument is shipped with the reset switch switched off to protect the battery and increase the storage live of the Impedo DUO The reset switch is reachable via a small hole close to the GPS port on the right side of the instrument see Figure 18 A paperclip or similar device is required to toggle the switch The instrument is ready to use once the reset switch is activated Note that the instrument battery must be charged more than 30 of full capacity before the instrument will start Be sure to connect the instrument to mains power before switching the reset button see Section O Reset Switch AAAAARAAAAAAAAA A A Figure 18 Location of the reset switch Impedo DUO U
70. to prevent mechanical damage during transit Or Use the CT Lab packaging in which the instrument was supplied 7 4 Storage To prevent damage to the Impedo DUO battery the instrument should always be stored in the Powered Down state When the instrument is powered down the instrument can be stored for up to 5 years Instrument Power Down 1 Hold the ON OFF button down for 3 seconds then Impedo DUO User Guide CTLAB NO 104 2 Switch the Reset Button off with a paperclip see Figure 59 The instrument is powered when the switch is in the depressed state Note that removing power from the instrument also removes power from the RTC Upon start up after a power cycle the RTC is in an unknown state and the instrument must first be connected to a valid time source GPS or NTP to ensure it time stamps data correctly 7 5 Warrantee and Repair 7 5 1 Warrantee Statement CT Lab Pty Ltd warrants its products and parts as set forth below Please note that this is only applicable if the product is bought directly from CT Lab Pty Ltd or CT Lab Pty Ltd accredited resellers di Impedo DUO User Guide CT Lab Pty Ltd warrants the ImpedoDUO and Vecto Il to be in compliance with their respective specifications under normal use and service and to be free from material defects in materials and workmanship for a warranty period of twelve 12 months from the date of the installation or eighteen 18 months from t
71. ts meters 2 Introduction to the Impedo Duo This chapter provides a quick introduction to the Impedo Duo The latest version of this document is shipped with the instrument but all new releases are available at www ctlab com 2 1 Impedo Duo Product Description The Impedo Duo is a comprehensive dual feeder multi function power monitor and recorder with GPS locked time synchronisation The instrument contains two independent time synchronised meters each with 4 x voltage and 4 x current inputs It has a rugged machined aluminium enclosure and features an on board GPS high resolution LED Display multi touch man machine interface 2 x Gigabyte Ethernet ports and 2 x USB2 0 HS ports All communication is secure and the instrument is password protected Impedo DUO User Guide 10 CTLAB 3 i 2 2 Receiving your Impedo Duo The Impedo DUO packaging is shown Figure 1 with the high density foam cavity for the Impedo DUO and the accessories supplied with the instrument Figure 2 shows the sealed ImpedoDUO box that is shipped Figure 1 Inside of the Impedo DUO box mpedepud fe Figure 2 Closed and strapped Impedo DUO box The Impedo DUO may be ordered with an optional GPS antenna with an extension cable as shown in Figure 3 Please contact CT Lab for more information regarding a GPS antenna mounting bracket if required Impedo DUO User Guide 1 er Figure 3 Optional GPS antenna and extension cable
72. unt Stand Alone Lock Screen Enterprise 5 6 1 Account The instrument is part of a fleet that is registered with Osprey Pro Enter the account code and password to enrol the instrument 5 6 2 Standalone The instrument is not configured as part of an enterprise fleet the instrument will not attempt to establish communication with an enterprise server The user can enter the fleet password to enrol it in a standalone fleet The instrument s UI can be secured against tampering by entering a lock screen password See Section 5 7 3 4 for more detail on password protection on the Impedo Duo 5 6 3 Osprey Pro Enterprise The instrument is configured as part of an enterprise fleet managed by Osprey Pro Enter the IP address of the Osprey Pro server and the fleet password Impedo DUO User Guide 59 CTLAB In enterprise mode the instruments continuously attempts to establish communication with the enterprise server until successful Should communication be lost the instrument will try to re establish it Osprey Pro supports multi user accounts each password protected Osprey Lite does not support multi user accounts In Enterprise mode the lock screen requires user authentication If no connection with a server is established the instrument will only be able to unlock using the override password see Section 5 7 3 4 1 for details 5 7 Preferences WIRELESS amp NETWORKS 3G GPRS WIFI Ethernet DEVICE
73. urrent Phase Angle Degrees Current Unbalance TTT I Positive Amplitude Ampere Le PANNA fase IT TO beim ATTO geme te TO ie ITA tes _ ET SC A ae TATTO em TLT TATA Impedo DUO User Guide 22 Fa i CTLAB N rr di MEASURED PARAMETERS 1 6 Cycle Harmonics Inter Harmonics Aggregated Aggregated Harmonics Aggregated Inter Harm Reactive power VAR Apparent Power VA rome TTT _ irem o TO verme fe ET CR v _ esere esere ITA mor e O I o eme PI 2 emos TT mesmo e PA roer e PANE eso TT Tel _ Impedo DUO User Guide 23 Fa i CTLAB N e 2 3 13 Technical Specification Number of channels 2 sets of 4 x differential inputs 3 4 Wire 4 Diff Input impedance channel 3 sec over current withstand Input impedance channel Impedo DUO User Guide di 24 A CTLAB__ E Overall accuracy class Fast Transient Capturing COMMUNICATION Ethernet 2 x Gigabit Ethernet IEEE 802 3 2008 compliant Overall Accuracy Class Impedo DUO User Guide SN CTLAB__ ere 25 Multi Touch Projected capacitive gesture recognition LED Display 256 x 64 monochrome Maximum Power Consumption lt 30 VA AC DC supply voltage input 90 300 Vams 42 69 Hz power factor corrected range Power over Ethernet IEEE 802 3 compliant 35 60 Vpc On board battery LifePO 2 0
74. used for the clock synchronization The instrument will perform a gradual time change time creep when its time and that of the time source differs slightly If the difference is overly large the time will be stepped causing a time jump A time jump will cause a discontinuity in the data and a new data segment cf Section 5 6 3 will be created Time creep will not cause a discontinuity in the recorded data However frequency measurements are not valid and will not be recorded or available via Realtime View during time creep Trend aggregation will take this into account and will only aggregate frequency values that were valid When the time difference between the instrument and the selected time source is negligible the instrument is said to be time locked Time Master will keep the instrument time locked as long as the time source is available During automatic time source selection Time Master will use the following sources in order of preference when available GPS Network time internal clock Time Master will change from GPS to NTP time if no GPS signal was received for 30 minutes If the NTP server time and GPS time differs sufficiently a time jump will occur A time jump may also occur if the system switches from one NTP server to another and the NTP servers had sufficiently different time See Section O for a description of Time Master s configuration Impedo DUO User Guide CTLAB NO 56 Frequency is not measured duri

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