TWS Mk VI - Qualitrol
Contents
1. 4 3 The Link from the TWS Internal Modem to the Telephone Line As shown in figure 8 below the telephone line is connected to the internal modem via a data surge protection device Data Surge protection device connected to internal modem Output of Data Surge protection device is connected to telephone line via the telephone cable provided Earth cable should be connected to earth stud marked at the rear of the TWS Figure 8 Connecting Telephone line to data surge protection device 4 4 Connection to External Serial Port COM 2 The external serial port com 2 may be used either for an external modem see appendix A or for a DNP connection see appendix D to interface to a Scada system A standard modem cable can be used to connect the external modem to the Com port 2 on the rear of the TWS Figure 9 below shows the pin assignment on Com port 2 Pin Signal name Data Carrier Detect DCD Receive Data RX Transmit Data TX Data Terminal Ready DTR Signal Ground GND Data Set Ready DSR Request to Send RTS Clear to Send CTS Ring Indicator RI OONDABRWDNDN gt Figure 9 External serial port COM 2 connections Pin Assignments O QUALITROL The external serial port com 2 may be used either for an external modem or for a DNP connection to interface to a Scada system The DNP feature may be enabled by web page see section 5 7 1 QUALITROL 9 www qualitrolcorp com TWS Mk VI2. E CJ Mail Shopping X Dumy Yahoo EQ answers es Games x J Music Le Ca my Web Personals NE sign In TWS Configuration Edit config tws HATHAWAY HATHAWAY 0 0 Linei LINE1 128 3 Line2 LINE2 128 3 Line3 LINE3 128 3 Line4 LINE4 128 3 Line5 LINES 128 3 Line6 LINE6 128 3 Line LINE7 128 3 Lines LINES 128 3 Submit Changes File format Sub station identifier TWS identifier 0 0 Line i Title Sub directory Gain Sampling frequency Line 2 Title Sub directory Gain Sampling frequency Line 3 Title Sub directory Gain Sampling frequency Line 4 Title Sub directory Gain Sampling frequency Line 3 Title Sub directory Gain Sampling frequency Line 6 Title Sub directory Gam Sampling frequency Line 7 Title Sub directory Gain Sampling frequency Line 8 Title Sub directory Gain Sampling frequency Default settings HATHAWAY HATHAWAY 0 0 Line 1 LINE1 128 3 Internet Scrolling down the TWS Configuration web page displays the fixed text below detailing the file format and the default settings of config tws as described previously in this manual An explanation is also given of each parameter QUALITROL 28 www qualitrolcorp com TWS Mk VI User Manual e a Qualitrol TWS version 8 15 i586 Microsoft Internet Explorer File Edit View Favorites Tools Help Om O DAG Pao kum 0 8 2 a Vor Vays Le mene QUALITROL 29 www qualitr
3. File Settings Tools Mode About Network Results ine 239 0 km Get Data Get Index 2007 09 19 10 13 57 213 05874087 239 2 km File Type s DAT MTS SUM DSi DAT atching events An operator manually positions the vertical dotted cursor at the foot of the reflected pulse to measure the line length In this case it is 239 2km QUALITROL 51 www qualitrolcorp com About QUALITROL e QUALITROL Field Services QUALITROL provides on site commissioning start up and comprehensive maintenance contracts to all customers worldwide To further improve reliability an extended warranty is available on selected products commissioned by QUALITROL QUALITROL Educational Services QUALITROL professional training designed to achieve hands on performance based objectives prepares operations maintenance and engineering personnel to install test configure operate and maintain QUALITROL products QUALITROL Accelerated Delivery QUALITROL provides accelerated delivery on many products and services including replacements spare parts and repairs About QUALITROL QUALITROL manufactures substation and transformer monitoring and protection devices used by electric utilities and manufacturing companies It is the global leader in sales and installations of transformer asset protection equipment fault recorders and fault locators Established in 1945 QUALITROL produces thousands of different types
4. Daylight Savings Time Off Satellites 0 Antenna Status Good Temperature 22 3 Pulse Rate PPM Home Qualitrol Copyright 2008 All Rights Reserved QUALITROL www qualitrolcorp com TWS Mk VI User Manual e Daylight Saving can be switched on and off by clicking Set DST daylight saving off The screen shown below has a number of options for European standard DST and USA standard DST These can be selected by simply clicking Set EU USA DST TWS GPS Microsoft Internet Explorer File Edit View Favorites Tools Help Ox O 8 Pa perm O 22 m De vh Vs Address http 10 75 8 33 gpsindex html TWS GPS Daylight Savings Table Configuration TWS GPS Status Set TWS daylight saving off Version 2 00 Time ne GPS locked No Set TWS daylight saving to European standard AR SES 400 00 SetEU DST Daylight Savings Time Off Satellites 0 Antenna Status Good Set TWS daylight saving to USA standard Temperature 31 0 Set USA DST Pulse Rate PPH Set TWS daylight saving to custom table Home 03 30 08 01 00 1 0 Qualitrol 10 26 08 01 00 0 0 03 29 09 01 00 10 10 25 09 01 00 0 0 Copyright 2008 03 28 10 01 00 10 All Rights Reserved 10 31 10 01 00 0 0 03 27 11 01 00 10 10 30 11 01 00 0 0 03 25 12 01 00 10 10 28 12 01 00 0 0 03 31 13 01 00 10 HOHOHOHOHOMH Edit table as necessary Reset Custom table to European Reset Custom table to USA Set Custom DST Each entry comprises date time hours offset minutes offs
5. PORT command successful 154 Opening BINARY mode data connection for tws tgz 226 Transfer complete ftp 156600 bytes sent in 6 17Seconds 915 79Kbytes sec ftp quit 221 ou have transferred 164229 bytes in 2 files 22i Total traffic for this session was 164861 bytes in 2 transfers 221 Thank you for using the FIP service on DSFL hathaway s ystems com 221 Goodbye CoNtwsup ma 4 Open a telnet session from the PC to the TWS This can be done using the command prompt Command telnet 200 100 51 34 Login as user tws With password hathaway 5 In the telnet session become the root user Command su With root password kkkkkkk k 6 Change directory to that created in step 3 using the command Command cd home tws temp 7 Change permissions on the tws_auto_ install file to make it executable Command chmod 755 tws auto install QUALI TWS Mk VI User Manual e 8 Upgrade the TWS using Command Jtws_auto_install Confirming successful installation In order to confirm that the upgrade has been completed successfully in the telnet session type Command tws version This command will show the currently installed TWS version number along with information about how long the current instance of TWS software has been running for It is recommended to reboot the TWS once the software upgrade is completed Command reboot c Telnet 10 75 8 33 Red Hat Linux release 7 3 CUalhalla gt Kernel 2 4 18 3 on an 1
6. TWSbase 2000 manual The default IP address for a TWS is 10 75 8 46 Therefore it will be necessary to set the IP address of your PC to be on the same subnet as the TWS An etes example PC IP address setting would be PC IP address 10 75 8 47 PC Subnet mask 255 255 255 0 Once your PC IP address has been configured open internet explorer and type in the IP address of the TWS in the address bar followed by clicking go File Edit View Favorites Tools Help DER gt E gt x 2 Oe Search Favorites 4 A fa Address 10 75 6 4 l A username and password prompt should appear Type in the username tws and the password hathaway and click ok The following screen should appear TWS Configuration and Control utility Adjust TWS configuration Change communications settings Edit TWS configuration files Configure TWS GPS and view status ok Manage TWS View TWS diagnostic report View latest TWS record waveform Manually trigger TWS and view trigger coun x Qualitrol Copyright 2008 All Rights Reserved QUALITROL 21 www qualitrolcorp com TWS Mk VI User Manual e 5 7 1 Adjust TWS Configuration When the OK button for Adjust TWS configuration is clicked the web page below will be displayed This page has five options With this we can change the network settings adjust modem strings and baud settings adjust DNP settings edit the configuration file and configure th
7. User Manual e 4 5 Connecting Ethernet An Ethernet connection is available at the rear of the TWS The TWS is assigned the default IP address of 10 75 8 46 when it leaves the factory The IP address can be re configured using the built in web page feature described in section 5 4 of this manual See location of TWS ethernet port in figure 5 The Web Page can be accessed via modem or Ethernet QUALITROL 4 6 Connecting the Inductive Couplers Transducers The inductive couplers are shown in Figure 10 and 11 as shown below Nylon Washers Polarity Dots QUALITRON A et OE 4 Figure 10 Inductive Couplers with polarity dots It is important to match the polarity dots of the two sections of the linear coupler when fitting as shown QUALITROL QUALITROL 10 www qualitrolcorp com TWS Mk VI User Manual e FIT ONE NYLON WASHER 9 PER SIDE AS SPACER lt AIR GAP Inductive Coupler Figure 11 Inductive Coupler Dimensions The inductive couplers should have an air gap between the two halves when installed Nylon washers are provided for this purpose See Figure 11 for ete positional detail of the nylon washers The linear couplers need to be fitted one on each phase around the secondary wiring from the protection current transformers associated with the line being monitored They need to be fitted consistently facing the same direction on each phase to meet the direction polarity c
8. _ CAAA a HHA Screws tighten onto pipe Insert 25mm diameter pipe to a depth of 25mm Figure 19 Adapter for GPS Antenna Mounting Plate 23 2 cm x 26cm Mast height 65cm without antenna adapter fitted Figure 20 Optional Antenna Mounting Kit QUALITROL 16 www qualitrolcorp com TWS Mk VI User Manual e 4 10 Alarms The CPU board provides isolated contacts which provide four alarms via the substation alarm system or for other purposes The contacts are isolated to a 6kV test voltage between coil and contacts and 1 5kV between contacts The contacts are rated to switch e Currents up to 8A at 250V ac e Currents up to 8A at 30V dc in a non inductive circuit e Currents up to 250mA up to 250V dc in a non inductive circuit The matching plug is supplied with the unit The connections of the 4 contacts are shown in Fig 20 A closed contact denotes an alarm condition To Telephone Socket GPS Fail Alarm Contacts Power Fail Alarm Contacts Watchdog Alarm Contacts Trigger Alarm Contacts Figure 20 Alarms and Modem Interface O QUALITROL There are many travelling waves on a transmission system that are not generated by system faults but can cause a TWS to trigger Not all the events signalled by the Trigger Alarm contact indicate fault activity QUALITROL 17 www qualitrolcorp com TWS Mk VI User Manual e 5 TWS Commissioning 5 1 Commissioning Steps After a TWS has
9. be used to illustrate the procedure below 2 Where necessary establish a dial up link to the TWS Note that the IP address used in this example is that for a dial up TWS 200 100 51 34 3 Open a DOS Command prompt window on the PC Then type the following commands to use FTP to the TWS Chanae director cd twsup TWS install directory created in step 1 Start FTP ftp i 200 100 51 34 Login as user tws With password hathaway Make temp directory Change directory cd temp Set mode for mkdir temp binary transfer om Transfer files mput Close the FTP quit session QUALITROL 42 www qualitrolcorp com TWS Mk VI User Manual e c C WWINDOWSisystem32 cmd exe icrosoft Windows AP Version 5 1 2600 CC Copyright 1985 2001 Microsoft Corp C Documents and Settings dcoopericd tusup Co twsupeftp 10 75 8 32 Connected to 16 75 6 32 220 DSFLohathaway systems com FIP server Uersion wu 2 6 2 5 ready ser 160 75 8 352 i none gt tus 331 Password required for tws Password 230 User tus logged in Access restrictions apply ftp mkdir temp 20 temp new directory created ftp cd temp 2586 CUD command successful ftp bin 2460 Type set to I ftp mput mput dsfl_auto_install y 208 PORT command successful 156 Opening BINARY mode data connection for dsfl_auto_install 226 Transfer complete ftp 7628 bytes sent in 4 668econds 76260806 66Kbytes sec mput tws tgz y HA
10. been installed there are a number of commissioning steps required to ensure the TWS is primed and ready to record faults The following steps should be performed on the TWS following the physical installation steps taken in section 4 of this manual e Visual inspection e Initial switch on e Checking TWS LED status e Using TWS web page to edit config tws file e Using TWS web page to edit TWS IP address e Testing Dial up connection 5 2 Visual Inspection Open the TWS front panel by releasing the quick release clips at the top and lowering it down on the bottom hinges Check that all the circuit boards and connectors are in place and have not become dislodged in transit 5 3 Initial Switch On Having installed all the auxiliary equipment and become familiar with the positions of the various indications and controls commissioning can begin Check the voltage is within the power supply limits and apply power to the TWS The Power Status LED should show green indicating that the supply voltage is on If the Power Status LED does not show green then a Check that the voltage supply which feeds the TWS is switched on b Check that the correct voltage is available on the supply terminals of TWS If none of these checks reveal any problems contact QUALITROL for further advice QUALITROL 18 www qualitrolcorp com TWS Mk VI User Manual e 5 4 TWS Status LEDs On the TWS front panel there is a set of three indicator LEDs a
11. external modem matches the baud rate setting on the TWS lf using a GSM modem ensure the network provider has configured the sim card as e Circuit Switched data number 8 data bits No Parity bits 1 stop bit e Non Transparency enabled also known as error corrected or RLP The TWS sends out an initialisation string to the external modem during bootup therefore ensure that the external modem is turned on and booted up and connected to com port 2 of the TWS before the TWS is turned on Try lowering the baud rate setting of the com port and external modem from 115200 to 9600 The recommended method is via web page as described in section 5 6 1 of this manual QUALITROL 41 www qualitrolcorp com TWS Mk VI User Manual e Appendix B Upgrading a TWS The TWS application software upgrade consists of two files tws tgz and tws_auto_install These files are available from QUALITROL typically via eMail The upgrade can be performed remotely over a communication link O QUALITROL The upgrade process is shown here using Windows XP Other operating systems may be used to perform the upgrade Please contact QUALITROL if you require assistance doing this L Find the directory containing the files tws tgz and tws_auto_ install used for upgrading the TWS Make a directory on the PC c twsup for example and copy these two files into this directory This directory is referred to as the TWS install directory and c twsup will
12. master station address and the TWS address associated with the DNP protocol may be altered in the TWS DNP configuration section A selection between a 16 bit encoding and 32 encoding register style may be made The number of buffered TWS triggers which are available to be transferred may be set in the Event backlog field The three types of DNP communications serial UDP and TCP may be enabled or disabled in this section The serial baud rate is configurable here Note the serial port at the rear of the TWS may be used for either serial DNP or for an external modem and if serial DNP is enabled then the external modem functionality is disabled The serial port name can be ignored as it cannot be altered The TCP and UDP port numbers may also be re configured Changes made in this section will only come into effect after the Submit Changes button is pressed Pressing Reset before submit changes will restore the DNP settings to their initial setting Once the Submit Changes button is pressed the following screen will be displayed QUALITROL 26 www qualitrolcorp com TWS Mk VI User Manual e F TWS DNP Microsoft Internet Explorer File Edit View Favorites Tools Help A 1 pen Back x a A Search g Favorites 4 Address http 10 75 8 33 dnp html Configure twsdnp TWS DNP configuration file installed TWS DNP counters Restarting twsdnp subsystem with new configuration Reload values Serial com
13. that switch position 1 is nearest to the capacitor C67 next to switch Observe the OFF position of switch QUALITROL gt QUALITROL 39 www qualitrolcorp com TWS Mk VI User Manual e Appendix A Installing an External Modem Overview On some occasions a customer may wish to use an external modem to communicate to their TWSs This section details the steps taken to make the communications between the TWSbase2000 software and the TWS work when using an external modem Description While any serial external modem can be used for this example a FastTrack Wavecom GSM modem model number M1306B was used for communications to the TWS a i r amp wavecom FASTRACK FN The external modem requires an initialisation string from the TWS This initialisation string does a number of things one of which is to set the external modem to auto answer calls When the TWS MkVI boots up it sends an initialisation string out Com Port 2 The TWS MkVI default initialisation string is set for Hayes Compatible modems and in most cases will not need to be changed Com Port 2 can be found on the Dongle Ethernet assembly at the back of the TWS The Com Port 2 on a TWS is set by default to communicate at a baud rate of 115200 O QUALITROL If necessary see section 5 6 1 on how to configure the baud rate and initialization string of an external modem by TWS web page Procedure to fit modem to TWS 1 Power the TWS down 2 If
14. the GPS receiver does not have satellite acquisition for more than 15 20 minutes the GPS Fail alarm contact will close To check remove antenna from GPS Module and after 15 20 minutes check that an alarm is received via the Substation Alarm System lf no alarm is received check that the alarm contact is closed by checking the continuity on the socket at the rear of the TWS lf the alarm contact is closed check the substation wiring 5 10 3 Watchdog The watchdog alarm will be received when the TWS is initially switched on The alarm will disappear approx 3 5 minutes after the TWS is initialised 5 10 4 Trigger Alarm Ensure that when the TWS is triggered an alarm is received via the substation alarm system If no alarm is received check that the alarm contact is closed when the TWS is triggered by checking the continuity on the socket at the rear of the TWS If the alarm contact is closed check the substation wiring 5 10 5 Operational Checks Apart from triggering from system transients some customers may wish for further assurance of correct operation and in this case it may be possible to generate transients by closing a circuit breaker onto a dead line TWS operation can be confirmed without any fault being present on the system This Type E test is further explained in Appendix E 5 11 Installation of Additional Line Modules Additional line modules may be added by the user up to a maximum of 8 They should be added into the next ava
15. using a PSTN modem then connect the modem to a telephone line 3 If using a GSM modem then ensure the network providers Sim card is enabled and installed in the GSM modem 4 Power on the external modem and configure the modem to communicate at 115200 baud rate refer to the modems user manual Di With the external modem still powered on connect the external modem to com port 2 found on the rear of the TWS 6 Power up the TWS 7 The TWS will send an initialisation string to the modem 8 The modem will be ready for use QUALITROL 40 www qualitrolcorp com TWS Mk VI User Manual e Procedure to configure TWS base station for modem Once the TWS has booted up use windows dial up wizard to create dial up connection and dial the external modem An example dial up connection is shown below User name is tws and password is hathaway ci nn 2x User name tas Password lo change Jie saved password etek here M Save this user name and password for the following users Me only Anyone who uses this computer Dial 502890335335 33 Cancel Properties Help If configured correctly the windows PC should successfully dial and connect to the TWS Trouble shooting external modem communications If a connection is not successful then try the following suggestions Check that the ribbon cable coming from the Com Port is attached to the correct connection on the CPU board Ensure that the baud rate of the
16. 586 login tus CewsPTWS tusl su Password root PTWS tws IH cd fhome tus temp LrootPTHS templ chmod 755 tws_auto_install rootPTWsS temp tus_auto_install TWS i586 Stopping httpd Building Executables Adding password for user tws Starting httpd Removing file Starting DMP LrootPTHS templ tws version TWS version 8 15 LrootPTHS templ reboot Broadcast message From root Cpts 82 Thu Feb 14 15 23 31 2618 The system is going down for reboot NOW root PTWS tenmplt _ QUALI E TWS Mk VI User Manual e Appendix C Telephone line simulator When performing commissioning dial up tests to the TWS the following equipment can be used to simulate a telephone network Company Good Thinking Telephone 01844 291803 Product Freelink Demo Dual Line QUALITROL 45 www qualitrolcorp com TWS Mk VI User Manual e Appendix D TWS Mark V DNP Option Introduction The TWS DSFL DNP program provides an implementation of the DNP3 0 protocol that enables a DNP Master station to collect event trigger information from the TWS DSFL device The program is a standalone application that is independent of the TWS DSFL application and performs demand scanning of the TWS DSFL file system to identify and get details of system events reported in the index files from the line subdirectories Scanning for events occurs when a DNP master station reads analog data or requests DNP class reports from the TWS
17. DSFL The TWS DSFL application files are scanned to identify the most recent events and the event details are entered into a reporting queue Each line s queue has a user settable maximum depth of up to 500 entries the default value is 10 Event details are derived from the event summary file found in the line s subdirectory The application reports the event details in one of two formats selected by the programs configuration Only one format is operational depending on the configuration the other variation will be rejected by the program if requested The format selection determines if each line s events will be reported as 5 16 bit registers reported as DNP variation 2 16 bit value with flag or as 8 32 bit registers reported as variation 3 32 bit values without flag For either configured format the reports can be read using a direct read command for Object 30 Analog Input or retrieved as events using Object 60 Class Object scans The default event report format is the 16 bit with flag format Note that the flag value sent by the application is always 1 in this report format The events are encoded as 5 16 bit values as shown in this diagram Word 0 151413 1211 10 9 8 7 6 5 4 3 2 1 0 Word 1 151413 1211 10 9 8 7 6 5 4 3 210 Word 2 151413 1211 10 95 8 7 6 5 4 3 2 1 O0 GPS Mid Phase A Date Word 3 151413 1211 10 9 8 7 6 5 4 3 221 0 GPS Low Phase B Data Word 4 151413 1211 10 98 7 6 5 43 2410 QUALITROL 46 ww
18. T Mounting Board SECONDARY OUTPUTS Pi 12353456 89 Figure 16 b P1 Secondary outputs QUALITROL 14 www qualitrolcorp com TWS Mk VI User Manual e 4 9 The GPS Antenna Link the GPS antenna to the connection on the rear of the TWS There are a number of GPS satellites in different orbits and at any time the antenna must be able to lock on to four of them for accurate time synchronisation This means that the requirements for a GPS antenna are very different from that of a satellite antenna for domestic use which is a directional antenna looking at one satellite in a geostationary orbit The GPS antenna therefore needs to be installed in a position where it can see as much as possible of the sky See figure 17 for an antenna placement guide The antenna is provided with a 10m connecting cable terminated in the correct BNC plug tofitthe GPS antenna socket on the rear panel The antenna is mounted on a 25mm mast and should be placed with as much visibility to open sky as possible If necessary the cable can be extended with up to a maximum of 30m of RG6 cable Longer cable runs require in line amplification For further detail please contact QUALITROL preferred not recommended Figure 17 GPS Antenna placement guidelines QUALITROL 15 www qualitrolcorp com TWS Mk VI User Manual A Figure 18 GPS Antenna Screws into Antenna amp x a
19. User Manual e TWS Mk VI Travelling Wave Fault Locator Document ID 40 08534 02 TWS DIGITAL FAULT LOCATOR 2 QUALITROL scatters Table of Contents Q 1 Health amp Safety at Work etc Act 1974 Section 6 1 ccsssseeeeee 1 2s OWS ON aan ea En nada sen dan caen dan ri 2 3 PRAT POG GUI OID 2 ne aa 2 Siete Sad EUPEN ee 2 32 Typa SCHEME eE aeee NEE EENEN 3 3 3 Control Room Equipment Software ccccccesseeseseeeeeseeeeseeeeeseeseenseeeeaneeees 3 3 4 Transport and Storage conditions cccccssseeseeeeseeneeseeneesenseeseeneeseeneesoaes 3 3 5 Mechanical Characteristics Of TWS ccccssesesseseseeseeeeseseeseeeeseseaseseaseees 4 309 CIIMAUC GONGINOINS ss ee rere eastenst acre ts 4 3 7 Electrical Conditions Of TWS cccceceececeececeeceeeeceeeeseeeeseseeeeseuseseuseeeuseesanees 4 3 7 1 Power supply consumption and earthing requirement cccseceeseeeeeeeeeeees 4 39 Hardware OvVErVICW rears cee sees eh eects eens ees am EEEE 5 aA DSANN acer ee ch te 8 4 1 Mounting the TWS aos cts ese eee eee see ce cee cee eee eee a 8 AZ The SODDIN VONAGO a sen cn nn 8 4 3 The Link from the TWS Internal Modem to the Telephone Line 9 4 4 Connection to External Serial Port COM 2 ccccessssesteseeeeeeeeeeeneeeeeneeneaes 9 4 5 Connecting Ethern larsos seen tw eute ensue een nsc ess tene esse 10 4 6 Connecting the Inductive Coupler
20. VI User Manual Q TWS Waveform Viewer When the Waveform button is clicked the screen below will be displayed showing the last recorded waveform from the TWS This is a very useful tool during the commissioning procedure for testing Analogue line operation see section 5 9 for more detail 3 TWS Waveform Viewer Microsoft Internet Explorer File Edit View Favorites Tools Help A i Q Back x Z A P Search Je Favorites Address http 10 75 8 33 cgi bin wave cgi es hes TWS Waveform Viewer Add Tab TWS Waveform Viewer last trigger received l l 9 8 11 5 Station HATHAWAY Circuit Name Line2 Date 11 13 2009 Time 12 58 54 GPS Tune Tag 06278931 Line Module Number 2 Gam 128 Frequency 1 25 MHz vi Search Web 2 Fay Gamal Shopping 2 H Woven ds phase 4 phase B phase C milliseconds QB my Yahoo EJ Answers Z amp Games Fj Music CH My web Personals Sign In D Internet Scrolling down the page we can see the information about the trigger such as the Station name Circuit name Date and Time Tag SSE bis RS OEE SSE ose on SEAR Shiva cates Soames TL SNES QUALITROL 35 www qualitrolcorp com TWS Mk VI User Manual e TWS Triggering When the Trigger button is clicked the screen below will be displayed By clicking Line 1 to Line 8 a remote manual trigger is sent to the TWS The TWS trigger count
21. WS QUALITROL 7 www qualitrolcorp com TWS Mk VI User Manual e 4 Installation On receipt of the equipment and accessories they should be examined for any damage or shortages which should be immediately reported to QUALITROL Installation of the TWS consists of a Mounting the TWS in a suitable 19 rack b Connecting the supply voltage to the TWS c Linking the TWS to a telephone line Lightning surge protection device if applicable d Connecting an external modem if applicable e Connecting the TWS to the local area network using the twisted pair Ethernet port if applicable f Connecting the split core CTs to the secondary protection wiring g Attaching and positioning the GPS antenna h Connecting output alarms 4 1 Mounting the TWS The TWS has a 19 inch rack mount form factor with 2 mounting holes to the far left and 2 mounting holes to the far right on the front of each unit 4 2 The Supply Voltage Check that the voltage of the proposed supply matches the voltage of the TWS model ordered If it matches connect the supply voltage to the polarity labelled connections marked SUPPLY or 48 VDC at the rear of the TWS as shown in figure 7 below A provision for earthing the unit is provided by the stud connection marked at the rear of the TWS The Earth connection should be made by 6mm tri rated earth cable Figure 7 Supply Voltage QUALITROL 8 www qualitrolcorp com TWS Mk VI User Manual e
22. anual e TWS Diagnostic Report The TWS diagnostic report shown below is opened when the Diagnostic button is clicked on the main page O QUALITROL Note there will a short delay before this page is visible The scroll bar at the right side of the text window may be used to view all parts of the diagnostic report Qualitrol TWS version 8 15 i586 Microsoft Internet Explorer me File Edit View Favorites Tools Help w Q sx QJ x a ps Search Se Favorites Vs amp w LJ oS rel a 3 Address al http 10 75 6 33 cgi bin diag cgi yr 7 2 v Search Web lt gt CH Mail Shopping my Yahoo EQ answers x es Games x Music x Amy Web W Personals X NE Sign In va Qualitrol TWS version 8 15 i586 Add Tab v E co Links TWS diagnostic report TUS Version 8 15 diagnostics HATHAWAY Station name HATHAWAY TWS start time Mon Jan 4 12 26 53 2010 Current time Thu Jdan 26 11 55 235 2010 GPS not locked 3 line module is Circuit name Directory name Gain Freq Number of triggers TWS IP address s AD 7530 89 TWS subnet mask s 299 255 2555 TWS default gateway 10 75 83 Home Qualitrol Copyright 2008 All Rights Reserved Internet The diagnostic report contains details of the TWS settings the number of triggers on each line module and a list of alarm conditions for example loss and gain of GPS synchronization QUALITROL 34 www qualitrolcorp com TWS Mk
23. ate the 50 60Hz components The convention is to install inductive couplers looking into the line as described in section 4 7 Figure 14 show an in zone fault The inductive couplers in this example are installed in such a way that they are looking into the line The resulting transients recorded by the TWSs at either end of the line shown in green then have the same polarity Figure 14 Fault occurring on the line being monitored by the TWS Figure 15 shows an out of zone fault again with both the inductive couplers installed at each end of the line looking into the line The resulting transients recorded by the TWS this time have opposite polarities QUALITROL 13 www qualitrolcorp com TWS Mk VI User Manual e Figure 15 Fault occurring outside the line being monitored 4 8 Optional Mounting Board for CTs lf requested the CTs can be attached to an optional mounting board rather than the usual loose installation Figure 16a and 16b shows how the CTs are fastened to the mounting board Note if the CTs are installed in this manner then it will be necessary to open circuit the CT wiring to allow connection to the screw terminals on board located at P2 190 00 TWS CT MOUNTING BOARD LON SEWN 6TK SERIES SNAPTRAK 3110 0215 amp 00 10SS HIHSYM NOTAN S EN YINYOJSNYYL LNIJ YYNI ISOd H d WW09XG EN YSIHSVYM NOTAN S EN Figure 16 a Optional C
24. available if LAN connection option is selected e TWSBase2000 software installed for further information consult the TWSBase2000 user manual Network Editor software installed for further information consult the TWSBase2000 user manual Poll and Display software installed optional for further information consult the PAD user manual 3 4 Transport and Storage conditions A storage temperature of 40 to 70 C is acceptable The equipment must be kept dry The packing provided is suitable for road and air freight QUALITROL 3 www qualitrolcorp com TWS Mk VI User Manual e 3 5 3 6 3 7 3 7 1 Mechanical Characteristics of TWS Enclosure 6U 19 rack mountable chassis Width 448 8mm 17 68 Depth 386mm 15 21 Height 266 7mm 10 5 Weight 18kg 40 lbs Climatic Conditions The operating temperature range is 0 to 55 C relative humidity from 5 to 95 non condensing Electrical Conditions of TWS Power supply consumption and earthing requirements The input voltage will depend on power supply option at time of purchase The two power supply options are Unit A This unit is designed for nominal 48V dc battery supplies The Substation Module operates to specification on this unit for dc supplies in the range 48V 20 to 10 Maximum Power Consumption if fully equipped is 120W Unit B This unit is designed for dc supplies operating within the limits 80 to 240V or 50 60Hz ac supplies
25. dem initialisation string of the internal and external modem may be altered here and the changes will come into effect once the submit changes button is pressed Pressing Reset before submit changes will restore the initialisation string to it s initial setting In practice it should not be necessary to alter the internal modem settings External modem settings would be updated if it was planned to use an external modem such as a GSM modem Qualitrol TWS Configuration utility Microsoft Internet Explorer File Edit View Favorites Tools Help Q sxx amp x A 2 Search Se Favorites La X Address http 10 75 8 33 cgi binfmodems cai yr Gr v Search Web 2 Ay Gmail Shopping 4 Qualitrol TWS Configuration utility sh Add Tab TWS Modem configuration Internal modem Baud rate 115200 Modem strings ABORT NO CARRIER mr Sai d d di d dATHO rr d d AATZ reed d d d dATEeF OK d d diTEO ATEO ere Submit Changes External modem Baud rate 115200 v Modem strings ABORT NO CARRIER mer Ndi d d di di daTHO me a d AATZ me d d didi dATeF OK d d daTEO ATEO reer Jo Vuga z EJ answers x amp Games A Music CZ My Weby PPersonals na Sign In Internet QUALITROL 25 www qualitrolcorp com Q TWS Mk VI User Manual DNP Configuration On selecting DNP the following page is displayed It is divided
26. e TWS GPS Qualitrol TWS Configuration utility Microsoft Internet Explorer File Edit View Favorites Tools Help Om O HAG Pwo rom O B Sa HerVagygs Address http 10 75 8 33 config html Yr 2 Search web P Ey ma FH shopping MyYahoo EP Answers Lycames A music CMyweb Personals signin HE Qualitrol TWS Configuration utility it Add Tab TWS GPS QUALITROL 2 www qualitrolcorp com TWS Mk VI User Manual e Network Settings On selecting Network the following page is displayed The current network settings are shown These may be edited to new values which are saved and come into effect when Submit Changes is selected Reset will revert the settings back to the original values when the page was first displayed Qualitrol TWS version 8 15 i586 Microsoft Internet Explorer File Edit View Favorites Tools Help Q peck X x a A P Search De Favorites LA lt 7 a wj LJ o l 03 rel a 3 Address E http 10 75 8 33 cgi bin network cgi yr vi Search Web 2 B Mal shopping My Yahoo EJ Answers d Games Music C My web Personals N Signin TWS Network configuration TWS IP Configuration Warning Changing these settings may disconnect you from the TWS 10 75 8 33 TWS IP Address 255 255 255 0 TWS Subnet Mask 10 75 8 1 Default Gateway Submit Changes Home Qualitrol Copyright 2008 All Rights Reserved Inte
27. endix B Upgrading a TWS cccccceesecenseeeeeeensecenesenseeenseeeeesenesones 42 Appendix C Telephone line simulator ss nssssssesrrrmrrnnns 45 Appendix D TWS Mark V DNP Option nnmmrrmmnrmnnnmmnnnennenmnnennnns 46 Appendix E Type E Test to Energise a Dead Line 50 QUALITROL Contents ii www qualitrolcorp com TWS Mk VI User Manual e 1 Health amp Safety at Work etc Act 1974 Section 6 1 This product is checked and supplied in accordance with our published specifications and used in normal or prescribed applications and within the parameters set for mechanical and electrical performance will not cause danger or hazard to health or safety provided that normal engineering and safety practices are observed and the product is only used by trained and qualified persons All usage of this product must be in accordance with this manual if there is any doubt about any aspect relating to the correct use of the product please contact QUALITROL Instruments 15 Wildflower Way Belfast BT12 6TA Northern Ireland Telephone 44 0 2890 225200 Fax 44 0 2890 225225 This operators manual is published by QUALITROL for use with the TWS instrument described herein QUALITROL reserves the right to revise this manual without notice for any reason This includes but is not limited to the utilisation of advances in technology and changes in the instrument or its configuration Liabilities for difficulti
28. ength of wire After looping the wire through the transducers as described below the user shorts the wire across the battery momentarily causing an impulse to be generated Figure 34 TWS flick test on a table top Two operators are required with easy communication between them The procedure is Inject a pulse through the Phase A transducer on Line 1 Check waveform on TWS webpage as described in section 5 6 2 Repeat for Phase B Repeat for Phase C Repeat with the current loop going through the Phase A Transducer and Back through the Phase B Transducer in the opposite direction Repeat with the current loop going through the Phase B Transducer and Back through the Phase C transducer in the opposite direction PL ONE gt This confirms the correct association of transducers with phases for Line 1 and that they are connected with a consistent polarity If the results do not come out as expected correct the installation and or wiring to achieve the correct result and repeat the test Repeat the test for each line Check Alarm Operation Power Supply Switch the TWS off and ensure that an alarm is received via the Substation Alarm System lf no alarm is received check that the alarm contact is closed by checking the continuity on the socket at the rear of the TWS If the alarm contact is closed check the substation wiring QUALITROL 37 www qualitrolcorp com TWS Mk VI User Manual e 5 10 2 GPS Fail Alarm When
29. es arising from unknown or unforeseen technical limitations are disclaimed QUALITROL 1 www qualitrolcorp com TWS Mk VI User Manual e 2 Overview This document is split into three main sections The first section titled Introduction gives a brief overview of a TWS Travelling Wave System followed by a description of the hardware characteristics of a TWS The second section titled Installation describes the steps taken to physically install a TWS The third section titled TWS Commissioning and Testing involves configuring the TWS software and finally testing the fully installed unit 3 Introduction The TWS is designed to accurately locate faults on high voltage overhead line feeders that may include lengths of cable It can give useful results on more complicated networks including some branches The preferred location is a substation where more than one feeder is connected to the busbar The TWS depends on the measurement of current transients on the secondary side of the main protection current transformer This method can only be applied at points on the system where current transformers are available At substations where only one feeder connects to a transformer it will be necessary to measure voltage transients from a suitable voltage transducer Contact QUALITROL for further details on measuring voltage transients 3 1 Standard Equipment As shown in Figure 1a and 1b below a standard TWS comes equipped w
30. et and a flag e g 03 30 08 change date mm dd yy 01 00 change time D Internet Scrolling down the pane reveals extra buttons A third option is to manually enter the DST settings this can be done by clicking the Set Custom DST QUALITROL 31 www qualitrolcorp com TWS Mk VI User Manual e TWS GPS Microsoft Internet Explorer File Edit View Favorites Tools Help Q sx amp x a P Search 5 Favorites La W Laas oS rel a 3 Address http 10 75 8 33 gpsindex html v E co Links TWS GPS Status Set TWS daylight saving to USA standard Set USA DST Version Date Time Set TWS daylight saving to custom table GPS locked Time Zone 03 30 08 01 00 10 26 08 01 00 03 29 09 01 00 10 25 09 01 00 Daylight Savings Time Satellites Antenna Status 170 0 0 1 0 0 0 03 28 10 01 00 1 0 10 31 10 01 00 0 0 a QE oo 10 0 0 10 Temperature Pulse Rate 03 27 11 01 00 10 30 11 01 00 03 25 12 01 00 10 28 12 01 00 03 31 13 01 00 IPOrPOrOrROrROPR Edit table as necessary Reset Custom table to European Reset Custom table to USA Set Custom DST Copyright 2008 Each entry comprises date time hours offset minutes offset and a flag All Rights Reserved e g 03 30 08 change date mm dd yy 01 00 change time 101 hour offset minutes offset flag O or 1 The flag is 1 to indicate a change to daylight savings time and D to indicate restoring to
31. ilable slot position i e if slot 1 amp 2 are already occupied position 3 should be fitted with the next line module When installing the new line module s all usual anti static precautions should be observed Before installing the line module the address of the line module must be set by the onboard switch The switch setting will be dependent on the line module position in the chassis and should be set according to the following chart When the installation is complete and the TWS is switched back on the additional Line Module s will automatically be detected by the software This can be checked by looking at the diagnostic file on the web page and checking that the additional Line Module is shown as normal The trigger tests should be carried out on the additional Line Module s as described in Section 5 9 to confirm correct operation Changes to the CONFIG TWS file should be made as described in Section 5 7 if required QUALITROL 38 www qualitrolcorp com TWS Mk VI User Manual e 1410 ree Line Module 1 Line Module 2 Line Module 3 HH HH L spe Line Module 4 Line Module 5 i Line Module 6 j Line Module sn Y L dd Line Module 8 a TWS Line Modules Address Switch Positions The above figure assumes
32. into three sections The section at the left side allows the user to change the DNP configuration the section on the upper right displays a DNP transaction counters and the button on the lower right resets all the DNP transaction counters to zero Z TWS DNP Microsoft Internet Explorer File Edit View Favorites Tools Help Q ak x Ee A P Search Se Favorites dv Address http 10 75 8 33 dnp html Configure twsdnp dS n L or Vs v Search Web lt iy be CJ Mail Shopping z my Yahoo EJ answers z d Games z Music Le Cal my Web W Personals TE Sign In a TWS DNP Configuration TWS DNP counters 10 Master station address 11 TWS address A a lt Pe ous Serial communications Encoded 16 bit analog values v Register style 10 Event backlog Transferred events 3 3 Packets received successfully DNP Serial Line Server Packets received in error C Enable serial DNP TCP communications 9600 v Serial baudrate Transferred events 0 Serial port name DNP TCP Server M Enable DNP over TCP 20000 TCP port number DNP UDP Server Packets received successfully 0 Packets received in error 0 UDP communications Transferred events 0 Packets received successfully 0 Packets received in error 0 Enable DNP over UDP 20000 UDP port number Submit Changes Home Reset DNP Counters Hathaway Copyright 2009 All Rights Reserved D Internet The
33. ith a One TWS chassis with internal power supply solid state flash drive CPU Card GPS module modem and line modules maximum of 8 There are also external connections for RJ45 Ethernet four alarm outputs IRIG B time synchronisation output and a serial port b GPS antenna with a ten meter lead extension cables are available see section 4 9 c Split core inductive couplers and associated nylon washers nuts and screws 3 inductive couplers for each line module d Lightning surge protection device e Telephone connection cable f Linux operating system and the latest TWS firmware Figure 1a and 1b QUALITROL 2 www qualitrolcorp com TWS Mk VI User Manual e 3 2 Typical Scheme Figure 2 below is a typical scheme of two TWSs installed at either end of an overhead line Each TWS monitors the current transients on phase A B and C of the overhead line feeders The main PC is usually situated in the control room and is used to retrieve timestamps of current transients from both TWSs at either end of the line and calculates distance to fault GPS Satellite Ze AE ost e ao Primary Protection Relay Primary Protection Relay Figure 2 Typical Scheme 3 3 Control Room Equipment Software The required control room equipment consists of a PC running Windows 2000 or XP The control room PC should have the following e Modem hardware installed if modem connection option is selected Ethernet port
34. munications Transferred events Packets received successfully Packets received in error TCP communications Transferred events 0 Packets received successfully 0 Packets received in error 0 UDP communications Transferred events 0 Packets received successfully 0 Packets received in error 0 Reset DNP Counters Internet The Reload values button should now be pressed The TWS DNP counters will update in real time as DNP transactions take place and provide a method of monitoring the three communication types This section is for display only Pressing the Reset DNP Counters button will set all counters to display zero See Appendix D for details of the DNP implementation in the TWS QUALITROL 27 www qualitrolcorp com TWS Mk VI User Manual e TWS Configuration The following page is displayed when the Edit button is selected from the TWS Configuration web page The contents of the TWS configuration file config tws are shown The file entries may be edited to new values which are saved and come into effect when Submit Changes is selected Reset will revert the settings back to the original values when the page was first displayed 2 Qualitrol TWS version 8 15 i586 Microsoft Internet Explorer File Edit View Favorites Tools Help Q sex Q a EA p Search Sie Favorites LA Ka w l o gt rel a 3 Address E http 10 75 8 33 cgi binjedit cgi Y7 Le 3 v Search Web lt
35. nd 3 requests will return no data if all current events have been acknowledged DNP Protocol Summary The DNP program implements a very basic subset of the DNP 3 0 protocol The implementation is based on the TWS Mark III DNP program and intends to provide the same capabilities and functions of that program DNP operations over serial lines and TCP UDP have been implemented Selection is based on the command line used to invoke the program The internal indicators transmitted by the protocol only support the Restart Flag indicating that the DNP subsystem has been restarted This flag can be reset by the master write to the Internal Indications object 80 The class data indication flags are not used by this implementation The implementation will support the following Data Link control frames Reset Link responds with Ack response always Reset User Process responds with Ack response always Test Link responds with Ack response always User Data send confirm responds with Ack response always User Data send No Reply responds according to Transport content Request Link Status responds with Ack response always The implementation will support the following Transport Frames Sequence number echoed from received message The implementation understands the following Application function codes Confirm no action taken unless response outstanding Read Process object requests as detailed below all read responses request app confirm Wri
36. nd left open circuit The other end of the cable is connected to the TWS analogue inputs marked A B and C as shown below in Figure 13 Note that polarity is marked on terminal block The at the line module needs to be connected to the terminal adjacent to the polarity dot on the linear coupler see figure 10 The cable screens must be connected to one of the earth terminals on the TWS line module terminal blocks The cable s at the TWS should be clearly labelled with the line name A label should be fitted identifying feeder names with line module numbers QUALITROL 12 www qualitrolcorp com TWS Mk VI User Manual e 4 7 Phase A Inductive Coupler Phase A Screen Phase B Inductive Coupler Phase B Screen Phase C Inductive Coupler Phase C Screen oa a Figure 13 View of physical analogue channel connections The length of cable between the inductive couplers and the TWS should be no longer than 25m Contact QUALITROL if longer cable runs are required The ete screen is earthed at the TWS end only Observe the polarity dot on linear coupler to on TWS Inductive Coupler Polarity Care should be taken to maintain polarities so that the phasing of connections from the current transformers to TWS is known The split core inductive couplers are installed without circuit outages The inductive couplers allow travelling waves to be recorded but attenu
37. of products on demand each customized to customers unique requirements 2010 QUALITROL Company LLC an ISO 9001 system certified company All rights reserved Information subject to change without notice All trademarks are properties of their respective companies as noted herein 40 08534 02 QUALITROL www qualitrolcorp com
38. olcorp com TWS Mk VI User Manual Q TWS GPS The page below will be shown when selecting TWS GPS The GPS status gives details of the GPS current time and settings In this instance the antenna was unplugged so GPS lock has been lost and the number of satellites tracked is zero It is necessary to track 4 satellites for a good GPS lock The Time Zone and Daylight Settings can also be changed For example if the time is to be changed to GMT 5 simply type 5 and click Submit Time Zone 7 TWS GPS Mozilla Firefox File Edit View History Bookmarks Tools Help Back LA Most Visited BBC The Register New Scientist Telegraph Guardian Reuters Top News The Independent Ne Trish News Online Ne Belfast Today NEWS sc a http 10 75 8 236 gpsindex html Forward Reload Home T TWS GPS TWS GPS Control Time Zone Change time zone of the TWS GPS Time Zone Offset from GMT hh mm Submit Time Zone Daylight Savings Time Change the daylight savings time setting of the TWS GPS DST Reset TWS GPS Reset the TWS GPS receiver to factory defaults and cause a GPS self survey to start Reset will take approximately 30 minutes to complete PPM PPH Pulse output optional Set the TWS GPS pulse output to one pulse per minute or one pulse per hour Home Qualitrol Copyright 2008 All Rights Reserved TWS GPS Status Version 2 00 Date 03 02 2010 Time 08 42 12 GPS locked No Time Zone 00 00
39. on the right hand side of the page will increase The Trigger count can also be reset to zero by clicking Reset Trigger Counts A Tws triggering Microsoft Internet Explorer File Edit View Favorites Tools Help Q sx x E A p Search Se Favorites TS Van Ld la o gt rel a 3 Address E http 10 75 8 33jtrigindex html yr X v Search Web lt iy be C3 Mail Shopping z Dumy Yahoo z z pos My Web W Personals z NE Sion In w Ive TWS triggering Add Tab TWS manual trigger TWS trigger count Line 1 2 Line 2 0 Line 3 1 Line 4 0 Line 5 0 Line 6 0 Line 7 0 Line 8 0 Reset Trigger Counts Home Qualitrol Copyright 2008 All Rights Reserved 5 8 Remote Communications The next stage in commissioning is to ensure that the user can establish communication to the TWS from the Control Room by modem or Ethernet The requirement at this stage therefore is for a PC in the Control Room This PC should have TWSBase2000 installed Refer to the TWSBase2000 User Manual to establish remote communications to TWS QUALITROL QUALITROL 36 www qualitrolcorp com TWS Mk VI User Manual e 5 9 5 10 5 10 1 Analogue Line Operation This stage of testing will confirm the Line module operation prove the transducers and their connections and confirm that phasing and polarity have been maintained throughout the wiring This is checked using a low voltage battery and a l
40. onvention It has been accepted that the positive direction of view is towards the line see section 4 7 They should be fitted to the connecting leads of a set of protection current transformers which are dedicated to feeding a protection relay digital relays result in better signals than electromechanical relays See figure 12 If this is not possible please consult QUALITROL for advice QUALITROL 11 www qualitrolcorp com TWS Mk VI User Manual e TREE REI RENE ESS RASA SRE SORE EE SSS SAS Lag 7 Figure 12 Inductive Coupler connection The connecting cable between the linear couplers and the TWS should either be Three individual cables one for each phase Each cable should be a screened twisted pair cable Conductors should be of copper and at least 7 strand 0 25 mm for mechanical strength in a substation environment Insulation should be polythene or polypropylene for low loss One cable containing 3 individually screened twisted pairs Conductors should be copper and at least 7 strand 0 25 mm for mechanical strength Insulation should be polythene or polypropylene for low loss The three core cable is preferred Terminal blocks are provided to fit the cable to the linear coupler secondary connections Alternatively the cable can be soldered directly onto these connections and a low temperature heat shrink sleeve fitted to match the cable size being used The cable screens should be insulated a
41. ormal behaviour 5 5 The config tws file Each TWS MkVI unit contains a file called config tws An example of the default config tws file is shown below left along with the file format below right It is necessary to synchronise the names given to the line modules in the TWSBase2000 software with the names given to the line modules in the config tws file This section describes the correlation between the TWSBase2000 software and the config tws P config tws Notepad File format File Edit Format View Help Sub Station Name TWS Name 0 0 HATHARA Y HATHAWAY 0 0 itle Subdirectory Gain Sampling Frequency Linel LINEI1 125 3 Linez LINE2 128 3 itle Subdirectory Gain Sampling Frequency Line3 LINE3 1248 3 Lined LINE 1375 2 itle Subdirectory Gain Sampling Frequency Lines LIMNES 126 3 Lines LINEG 128 3 Line LINE 128 3 itle Subdirectory Gain Sampling Frequency Lines LINES 1256 3 itle Subdirectory Gain Sampling Frequency itle Subdirectory Gain Sampling Frequency itle Subdirectory Gain Sampling Frequency itle Subdirectory Gain Sampling Frequency 5 6 Description of config tws file contents Sub Station Name This is the sub station name and can be a maximum of 25 characters TWS Name This is the TWS Name and can be a maximum of 8 characters 0 0 Should not be changed by the user but must be present Title This contains text that was more widely used by the olde
42. r MkII MkIII and MkIV TWS s This parameter is used in the MkVI TWS for the diagnostic file The title Line1 Line2 etc should be present but does not need to be altered by the user Sub directory In earlier firmware versions this contained the name of the sub directory on the TWS flash memory in which the instrument would store its results It is only used now as a display field in the diagnostic file It can be used as a secondary label if required It must be between 1 and 15 characters long Gain is the gain setting for the amplifier in the line modules It must be a number between 0 and 255 0 is no gain and means that the module is effectively turned off 255 is maximum possible gain and corresponds to 0 2 Volts Full Scale Deflection FSD The default value is 128 Sampling Frequency is the sampling frequency of the analogue to digital converter module It must be set to 3 to match the sampling rate of 1 25 MHz QUALITROL 20 www qualitrolcorp com TWS Mk VI User Manual e 9 TWS Webpage Configuration Tool On TWS MkVI outstations running software versions 8 04 or later an additional feature has been added to enable configuration and management of the TWS by web page To run the TWS web page simply connect a PC to the TWS via one of the following ways e Connect the PC via a cross over Ethernet cable or through two straight Ethernet cables via a hub e Set up a dial up modem connection via Windows PPP see
43. rnet If the TWS broadcast address or network has been set in the TWS Linux network configuration files these items will also be editable in the TWS Network configuration page as shown below SSE Se SLSR CREATEED Sanat ire tie SAME CSAS Rene MDEE och Ms an Re a a Es Es Sia ek AMAR NER tee EAE Sots Bra Ss Toa SIA Ta arate fe men Sty ee BS TRE SEARS RR Sots fea Bs ONES Sones SS eee QUALITROL 23 www qualitrolcorp com TWS Mk VI User Manual e Network addresses are accepted in dotted quad form If any of the addresses are not in this form e g out of range values or non digit characters a message similar to below will be displayed and any changes will not come into effect Qualitrol TWS version 8 03 i586 Microsoft Internet Explorer File Edit View Favorites Tools Help Back gt G A A Reach Gyravorites Media C4 By S El 2 Address http 10 75 20 231 cgi bin network cai Go Links adl TWS IP address error Return to TWS network co ation Home Qualitrol Copyright 2006 All Rights Reserved Connection to the TWS will be lost once changes to the IP addressing have been submitted It will be necessary to re connect using the new IP details to etes continue the TWS setup process QUALITROL 24 www qualitrolcorp com TWS Mk VI User Manual Q Modems On selecting Modems the following page is displayed The baud rate and mo
44. s Transducers 10 a7 Inductive Coupler POIQTIV esse sance tatin 13 4 8 Optional Mounting Board for CTS cccccesseeseeseeseseeeeeseesenseseenseneeneeses 14 4 9 The GPS Antennnad cccccceeeeeeeneeeeneeeensecensesenseeensecensecensecenseceneeseneeseneess 15 AIO AO ES uacemecueeweanmecaceseet 17 5 TWS COMMISSION a a de 18 5i COMMISSIONING STEDS 2 crane esse esse e 18 5 2 Visual Inspection een ae cesueweseueesse 18 5 3 L LAN E RSS LE 02 1 OOD EP RE 18 54 TWS Status EDS eer ne ere eee ne ee eee 19 S9 EME COMMO IWS Mens esse ENNEN TSAS 20 5 6 Description of config tws file contents ss 20 5 7 TWS Webpage Configuration TOO nrrsrnrrernnenemnnnnemnnnnnennnnne 21 5 7 1 Adjust TWS COnmiQuration sosesc sruni i Ea arai 22 Bre MGEN ae EE T a eee 33 5 8 Remote COMMUNICATIONS ccceeeeeeeeeeenseeenseeensenensenensesensesenseseneesonees 36 QUALITROL Contents i www qualitrolcorp com Table of Contents e 5 9 Analogue Line Operation 2 2 sen sse sance rec 37 5 10 Check Alarm Operation ne sans sante seu 37 DO PONTS OP a ae D eee eee ere 37 WO APR SFA e EE E E EE 38 SWOS M NEO E E E E E et nt 38 5104 THgger Ala M eena a E E O 38 5 10 5 Operational Checks iii 38 5 11 Installation of Additional Line Modules ccccssseeeeseeeeeeeeeneseneeseees 38 Appendix A Installing an External Modem 40 App
45. s shown in Fig 21 e The top one labeled Power indicates that the power supply is on It is linked to the alarm contacts available on the back panel When the light is out the corresponding alarm contact at the back of the instrument is closed The middle one labeled GPS Locked When the light is on it indicates that the internal GPS Module has acquired satellites or LOCK When the light is out the corresponding alarm contact at the back of the instrument is closed e The bottom one labeled Watchdog is an alarm which indicates that TWS software in the TWS has failed When it is ON the corresponding alarm contact on the back of the instrument is closed Power GPS LOCKED WATCHDOG Figure 21 TWS Indicator LEDs The Watchdog will come on for a short time Several minutes on power up This is normal behavior QUALITROL The TWS also has a Dongle LED It can be found on the rear panel of the unit as shown in figure 22 below This LED indicates that the TWS is in a healthy state When the TWS software is running and the unit is in a healthy state the Dongle LED will flash at a rate of once every second If the TWS software is not running the Dongle LED will be extinguished Figure 22 Dongle LED QUALITROL 19 www qualitrolcorp com TWS Mk VI User Manual e i QUALITROL lt will take several minutes after power up similar to the watchdog for the dongle LED to start flashing This is n
46. system time Home Qualitrol Home Qualitrol Copyright 2008 All Rights Reserved D Internet Click on Reset Custom table to European or Reset Custom table to USA to view the contents of either the EU or the USA daylight saving tables Alternatively use one of these standards as a template for a custom table The format of the table is explained on the web page In brief the table allows dates to be set over a 13 year period The date and time of the changeover is specified along with the time offset in hours and minutes The following is an example of a change to and a change back from daylight saving in 2010 03 28 10 01 00 101 10 31 10 01 00 000 Minutes 1 change to DST Date of change Time of offset 0 change back from DST US format change QUALITROL 32 www qualitrolcorp com TWS Mk VI User Manual e 5 7 2 Manage TWS When the OK button for Manage TWS is selected three options become available TWS Diagnostic Report TWS Waveform Viewer and TWS Triggering See below a Qualitrol TWS management utility Microsoft Internet Explorer File Edit View Favorites Tools Help Q 9 Address http 10 75 8 33 manage html JO search she Favorites e 8 5 Bovy a vp search web 2 Ey mai fshoppng MyYahoo EP Answers qh ames d Musie Add Tab Diagnostic Waveform QUALITROL 33 www qualitrolcorp com TWS Mk VI User M
47. te Process object writes as detailed below All other application functions ignored The implementation supports the following DNP 3 0 objects Binary Object 1 Read Returns Variation 2 binary with status Constant data and status for 8 objects 0 online 0 online O offline O online 0 online O offline O online O offline Write Not supported Analog Object 30 Read Returns Variation 2 16 bit value with status Current event values as requested by the user start stop indices or all values Object numbers 0 through 39 or Returns Variation 3 32 bit value Current event values as requested by the user start stop indices or all values Object numbers 0 through 63 QUALITROL 48 www qualitrolcorp com TWS Mk VI User Manual e Write Not supported Time and Date Object 50 Read Variation 1 only Returns the current time in the TWS DSFL Write Acknowledged but ignored to ensure GPS time is used Class Data Object 60 Read Returns latest event for 8 lines 40 Analog objects Variation 2 16 bit analog with status or 64 Analog objects Variation 3 32 bit analog Write Not supported Internal Indication Object 80 Read Not Supported Write Performs Clear Restart operation O QUALITROL More detail including a DNP V3 00 device profile is available in the TWS DSFL DNP QUALITROL document 40 8564 See section 5 7 1 of this document for a description of the DNP web page interface to the TWS DSFL QUALITROL 49 w
48. w qualitrolcorp com TWS Mk VI User Manual e The 32 bit format sends each value as a separate register The events are encoded as 8 32 bit values as shown in this diagram Word 0 31 30 29 28 17 16 25 24 23 22 21 20 19 18 17 16 1514131211109 8 76543210 Timestamp unix time_t value Word 1 31 30 29 28 17 16 25 24 23 22 21 20 19 18 17 16 15 14 13 12 1110 9838 76543210 GPS time value Word 2 31 30 29 28 17 16 25 24 23 22 21 20 19 18 17 16 15 14 13 12 1110 9838 76543210 GPS Locked Word 3 31 30 29 28 17 16 25 24 23 22 21 20 19 18 17 16 15 14 13 12 1110 9838 76543210 Phase A value Word 4 31 30 29 28 17 16 25 24 23 22 21 20 19 18 17 16 15 14 13 12 1110 9838 76543210 Phase B value Word 5 31 30 29 28 17 16 25 24 23 22 21 20 191817 16 15 14 13 12 1110 9838 76543210 Phase C value Word 6 31 30 29 28 17 16 25 24 23 22 21 20 19 18 17 16 15 14 13 12 1110 9838 76543210 Sequence Word 7 31 30 29 28 17 16 25 24 23 22 21 20 19 18 17 16 15 14 13 12 1110 9838 76543210 QUALITROL 47 www qualitrolcorp com TWS Mk VI User Manual e For all formats the event reporting behaviour is the same The current event queue entry is returned to the DNP master station when an Analog Input read or a Class 0 1 2 or 3 request is processed The queue is shifted when the application confirm message is received for a Class 0 1 2 or 3 response Class 0 responses will continue to contain all the current event values Class 1 2 a
49. within the voltage range 90to 250V Maximum Current Consumption if fully equipped is 120W Unit B allows the equipment to be used on ac supplies which may be useful for test purposes However in the interests of supply reliability we strongly einem recommend you normally operate the equipment on dc storage battery supplies QUALITROL 4 www qualitrolcorp com TWS Mk VI User Manual e 3 8 Hardware Overview The following section illustrates the TWS hardware from different angles TWS DIGITAL FAULT LOCATOR z r e c o Power GPS LOCKED WATCHDOG Figure 3 Front view of TWS oo awe LE A Fe A SUPPLY SMFUSES ie A FREE De ELECTRONIC SYSTEMS PROTECTION D kad ESP TN RJ11 4 6 Plug in Lightning Barrier for telephone lines ce furse Figure 4 Rear view of TWS QUALITROL 5 www qualitrolcorp com TWS Mk VI User Manual e GES antenna gt Dongle LED y Shut d WIL butter ternal modem ma ephone port LME TEIG E outout n Eztemal Modern ee T i E i a DNP po rt Figure 5 Detailed rear view of TWS QUALITROL 6 www qualitrolcorp com TWS Mk VI User Manual e 0900000000 LS A y s ore PA Fr af E ae 4 va 1 4 1 ni ag ve ee eee mdan pi d a ya IIEIIALLL EEE LEEEELECE Mit LUE L ELITE ELELE F y a CPU Board Figure 6 Internal view of T
50. ww qualitrolcorp com TWS Mk VI User Manual Q Appendix E Type E Test to Energise a Dead Line Type E testing is normally carried out to confirm the length of the line being monitored It can also be used however to test the TWS principle The line is energised by closing the circuit breaker at one end with the other end being open and preferably isolated Energising a dead line generates a travelling wave that will be fully reflected from the open circuit at the far end An operator uses TWS Base Station software to identify the reflected pulse and measure a distance equivalent to the line length The following lattice diagram gives more information END B open circuit Energising a Dead Line from End A Line Length L T2 x v 2 Where v propagation velocity Note that it is unlikely that the TWS at End B will trigger therefore a double ended Type D automatic method of measuring the line length may not possible The waveform captured at End A has to be analysed manually Note that Type E testing will not be successful if the circuit breaker closing control is designed to operate at voltage zeroes Closing each phase on a voltage zero will not generate a travelling wave Note that a TWS will not normally trigger when a circuit breaker is opened and a line de energised QUALITROL 50 www qualitrolcorp com TWS Mk VI User Manual e An example of a Type E test is shown below T Nigeria ol Fa
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