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POM2-3333

Merger Unit Test User

Manual

37

3.7 Timekeeping accuracy

3.7.1 Testing wiring connection
Method 1:Using GPS inside the station clock system for
synchronization

POM2-3333

MU

Optic PPS

Optical B

synchronization

Station clock system

GPS Antenna

IRIG-B

IEEE1588

When the clock port of MU tested is optical PPS

POM2-3333

MU

Conversion

Optical

PPS

TTL PPS

USB cable

Optical B

synchronization

Station clock system

GPS Antenna

IRIG-B

IEEE1588

When the clock port of MU tested is TTL PPS

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Summary of Contents for POM2-3333

Page 1: ...TD To make any kind of copy of this manual please contact PONOVO POWER CO LTD in advance This manual represents the technical status for the moment of publishing The product information description and specifications mentioned in the manual do not have any contact binding force and PONOVO POWER CO LTD remains the right to make modifications to the technical specifications and configurations withou...

Page 2: ...l 30 3 6 Synchronization accuracy 33 3 7 Time accuracy 37 3 8 Power Error 42 3 9 Voltage Switch and parallel logic 46 3 10 SMV and GOOSE analysis 51 Appendix A Accuracy judgement and assessment 55 C 1 Limits of current error and phase displacement for measuring current transformer 55 C 2 Limits of error for protective current transformers 55 C 3 Limits of voltage error and phase displacement error...

Page 3: ...test In the condition of not changing any connection it can give test to all the output of MU amplitude error of current channel phase error frequency error and composite error then assess the results and give a conclusion of the test automatically Message response time test It can give test to the time of message response and the error of response time absolute signal delay Abnormal SMV and GOOSE...

Page 4: ...d interpolation methods In allusion to the service condition using MU in practice receiving system will use the synchronous data calculating mode for network port data and use interpolation calculating mode for point to point data To ensure the precision s absolutely accurate in networking mode and point to point mode of MU POM2 3333 can do the precision test in synchronous method and interpolatio...

Page 5: ...POM2 3333 Merger Unit Test User Manual 5 2 Panels and specifications 2 1 Panels Front panel Left panel ...

Page 6: ...POM2 3333 Merger Unit Test User Manual 6 Right panel ...

Page 7: ...f each phase are adjustable independently Amplitude 6 120V phase Degree of accuracy 0 05 4V 120V 2mV 0 5V 4V Resolving power 1 mV 0 2V 10V 10 mV 10V 120V Maximum output power 60VA phase 3 120V the phase time 30VA phase 6 120V the phase time vulgate rise fall time 100µs THD 0 05 10V 120V Frequency 1Hz 1kHz amplitude frequency characteristic Amplitude changes 0 05 45Hz 65Hz 0 2 10Hz 45Hz 65Hz 450Hz ...

Page 8: ...port GPS interface Biult in GPSchip needing an external GPS antenna Light B code send 2 ST interfaces Light B code receive 1 ST interface Sync Pulse receive 1 ST interface Binary input Number 8 pairs Characteristics 8 channels can be set up as blank nodes or band potential contact independently and the band potential contact can set up the trigging signal independently Sampling frequency 10kHz Res...

Page 9: ...POM2 3333 Merger Unit Test User Manual 9 Permissible voltage 100V 253V AC 200V 380V DC Rated frequency 50Hz Permissible frequency 40 60Hz current 6A max Size and weight 390 210 mm 287mm W H D 15kg ...

Page 10: ...ng to different types of MUs the following items can be made SMV accuracy SMV channel time delay power error SMV and GOOSE analysis etc Run the software on PC after installation it is the main interface showing in figure 3 1 According to the MU type select the correct output type in the interface A1 A5 In figure 3 2 it enters into the testing page All the test items can be completed in this testin...

Page 11: ...s the settings zone and testing data zone In the setting zone it is for the testing settings In the testing data zone there are the real time data during the test According to different test functions there are items such as accuracy message integrity clock synchronization SMV waveform and output power etc ...

Page 12: ...or 9 2LE Station clock system IRIG B IEEE1588 MU output IEC 60044 8 9 2 or 9 2LE IRIG B IEEE1588 Substation clock system POM2 3333 MU MU input Analog IEC60044 8 9 2 or 9 2LE MU output IEC60044 8 9 2 or 9 2LE IRIG B IEEE1588 POM2 3333 Synchronization Solution 2 Interpolation POM2 3333 MU MU input Analog IEC60044 8 9 2 or 9 2LE MU output IEC60044 8 9 2 or 9 2LE ...

Page 13: ...ct then go ahead with step 2 If the selected output includes IEC61850 9 2 or IEC60044 8 State grid the communications parameters and channels should be confirugred in the corresponding message After the configuration continue with step 2 Please refer to the configuration instruction in appendix The configuration for sending messages Step 2 Set the ration in each voltage and current output channel ...

Page 14: ...te the wiring connection for IEC61850 9 2 and IEC60044 8 is different from that in hardware Please refer to the hardware structure in part 2 1 Step 2 Map the message channel Press channel configuration to import SCD file by clicking import SCD file in the below figure The software will automatically match between MU output channel and input control channel ...

Page 15: ...r and configuration it The Sel is used for testing the channel and fill the report The Accuracy class is for judging the accuracy test result When the testing accuracy is within the range the test result shows in blue if it exceeds the range the result will show in red Please refer to the judgement guide in Appendix C Accuracy Measurement Error Judgement ...

Page 16: ...st method The synchronization and interpolation can be used Note For the synchronization the tester has to be synchronized with MU For the interpolation it is not necessary to depend on the time signal Set testing times 3 1 3 2 Start test Press button on the test interface or on the tester POM2 3333 or F2 on the externally PC to run the test 3 1 3 3 Real time monitoring data When the accuracy is M...

Page 17: ...POM2 3333 Merger Unit Test User Manual 17 When the accuracy class is Method 2 the accuracy class is showing like below Note The error calculation formats ...

Page 18: ...SC on the external PC to stop the test If there are new test items to be tested The wiring connection is the same the previous steps can be omitted only need to switch Testing data observation If there are new test items to be added press after the new testing page is switched Note After above test the button will turn grey If this test result is not satisfied to have a test again press button aft...

Page 19: ... MU we have to compare the data between POM2 3333 sending message and MU s configurations especially for IEC60044 7 8 the baud rate SMV rate and MU keep the same 6 The install software and SCD file are suggested to be copied in disc D The Disc D is under protection so the files will not be lost ...

Page 20: ...0 05 Pass 13 Vb 2 127000 000V 0 05 0 05 0 05 Pass 14 Vc 1 127000 000V 0 04 0 04 0 04 Pass 15 Vc 2 127000 000V 0 05 0 05 0 05 Pass Phase displacement SN Item Out phase Max phase Min phase Avg phase Con 1 Ia PROT 1 0 000 8 178 1 714 4 351 Pass 2 Ia PROT 2 0 000 8 392 0 915 4 510 Pass 3 Ia Meas 0 000 3 989 3 471 3 646 Pass 4 Ib PROT 1 120 000 0 599 3 302 1 756 Pass 5 Ib PROT 2 120 000 0 590 3 333 1 0...

Page 21: ...0 37 合格 7 Ic PROT 1 1000 000A 120 000 2 86 2 77 2 81 合格 8 Ic PROT 2 1000 000A 120 000 2 89 2 82 2 86 合格 9 Ic Meas 5000 000A 120 000 0 41 0 39 0 40 合格 10 Va 1 127000 000V 0 000 0 36 0 34 0 35 合格 11 Va 2 127000 000V 0 000 0 34 0 33 0 33 合格 12 Vb 1 127000 000V 120 000 0 34 0 33 0 33 合格 13 Vb 2 127000 000V 120 000 0 33 0 32 0 33 合格 14 Vc 1 127000 000V 120 000 0 35 0 33 0 34 合格 15 Vc 2 127000 000V 120 ...

Page 22: ...G B IEEE1588 The clock inside POM2 3333 Note 1 the wiring connection can be kept the same 3 2 2 Test configuration Keep the configuration the same While making the independent test the users only need select configuration zone to choose the message type There are IEC61850 9 2 and IEC60044 8 available Refer to part 3 1 2 2 3 2 3 Start test 3 2 3 1 Parameters Please refer to part 3 1 3 1 3 2 3 2 Sta...

Page 23: ...can be omitted only need to switch Testing data observation If there are new test items to be added press after the new testing page is switched Note After above test the button will turn grey If this test result is not satisfied to have a test again press button after the software is stopping Then the button will be available Press this button again to restart the test and obtain the result 3 2 3...

Page 24: ...the users only need select configuration zone to choose the message type There are IEC61850 9 2 and IEC60044 8 available Refer to part 3 1 2 2 3 3 3 Start Test 3 3 3 1 Parameters Please refer to part 3 1 3 1 3 3 3 2 Start Test Press button on the test interface or on the tester POM2 3333 or F2 on the externally PC to run the test 3 3 3 3 Real time monitoring data 3 3 3 4 Test result When the resul...

Page 25: ... press button after the software is stopping Then the button will be available Press this button again to restart the test and obtain the result 3 3 3 6 Report When all test items are finished or the selected items are completed press to get the word format report 3 3 4 Notice 1 While making SMV testing frame drop SN Jump repetition serial number deviation recovery time with communications timeout...

Page 26: ...ort Frame Rate Total messages 158937 Drop frame 0 0 00 SN jump 0 0 00 Repetition 0 0 00 Out of step 0 0 00 Serial number deviation 0 0 00 Invalid quality 158937 100 00 recovery time with communications timeout 0 0 00 recovery time with communications interruption 0 0 00 ...

Page 27: ...ration Keep the configuration the same While making the independent test the users only need select configuration zone to choose the message type There are IEC61850 9 2 and IEC60044 8 available Refer to part 3 1 2 2 3 4 3 Start Test 3 4 3 1 Parameters Please refer to part 3 1 3 1 3 4 3 2 Start test Press button on the test interface or on the tester POM2 3333 or F2 on the externally PC to run the ...

Page 28: ...steps can be omitted only need to switch Testing data observation If there are new test items to be added press after the new testing page is switched Note After above test the button will turn grey If this test result is not satisfied to have a test again press button after the software is stopping Then the button will be available Press this button again to restart the test and obtain the result...

Page 29: ...nit Test User Manual 29 occur within 250 10us But in WLAN there is no such requirement 3 4 5 Sample report Frame Rate Total received messages 158937 1uS 1uS 158937 100 00 3uS 3uS 0 0 00 10uS 10uS 0 0 00 10uS 10uS 0 0 00 ...

Page 30: ...9 2 and IEC60044 8 available Refer to part 3 1 2 2 3 5 3 Start test 3 5 3 1 Parameters Please refer to part 3 1 3 1 3 5 3 2 Start test 1 Press button on the test interface or on the tester POM2 3333 or F2 on the externally PC to run the test Detect and select the test GOOSE control block In this figure select Detection mode first Stop the software until GOOSE is detected Select the test GOOSE cont...

Page 31: ...POM2 3333 Merger Unit Test User Manual 31 ...

Page 32: ...est result is not satisfied to have a test again press button after the software is stopping Then the button will be available Press this button again to restart the test and obtain the result 3 5 3 6 Report When all test items are finished or the selected items are completed press to get the word format report 3 5 4 Notice The analysis on control block cannot be analyzed until the GOOSE block is ...

Page 33: ...E1588 Conversion Optic PPS Ethernet PPS USB Ethernet PPS 3 6 2 Test configuration Keep the configuration the same While making the independent test the users only need select configuration zone to choose the message type There are IEC61850 9 2 and IEC60044 8 available Refer to part 3 1 2 2 3 6 3 Start test 3 6 3 1 Parameters Select synchronization error in below test page ...

Page 34: ...POM2 3333 Merger Unit Test User Manual 34 3 6 3 2 Start test Press button on the test interface or on the tester POM2 3333 or F2 on the externally PC to run the test ...

Page 35: ...tted only need to switch Testing data observation If there are new test items to be added press after the new testing page is switched Note After above test the button will turn grey If this test result is not satisfied to have a test again press button after the software is stopping Then the button will be available Press this button again to restart the test and obtain the result 3 6 3 6 Report ...

Page 36: ... 2 For the test MU the icon indicates valid PPS while icon means invalid PPS 3 When both GPS and test MU are both showing in the test can be continued 3 6 5 Report Synchronization accuracy Accuracy of clock synchronization 400nS Time accuracy ...

Page 37: ...system for synchronization POM2 3333 MU Optic PPS Optical B synchronization Station clock system GPS Antenna IRIG B IEEE1588 When the clock port of MU tested is optical PPS POM2 3333 MU Conversion Optical PPS TTL PPS USB cable Optical B synchronization Station clock system GPS Antenna IRIG B IEEE1588 When the clock port of MU tested is TTL PPS ...

Page 38: ... POM2 3333 MU Conversion Optical PPS TTL PPS USB cable IRIG B synchronization GPS Antenna When the clock port of MU tested is TTL PPS Note The switch above the Optical B code synchronization is to guarantee that the MU tested has been stably synchronized before timekeeping testing After stable synchronization the B code synchronization signal shall be cut off and start timekeeping function test ...

Page 39: ...rt 3 1 2 2 3 7 3 Start test 3 7 3 1 Parameters Choose timekeeping error in the following interface 3 7 3 2 Start test Click the button in the software interface Or press button in the hardware local controller on POM2 3333 Or connect into external PC to press F2 to start the test ...

Page 40: ...PC to stop the test If there are new test items to be tested The wiring connection is the same the previous steps can be omitted only need to switch Testing data observation If there are new test items to be added press after the new testing page is switched Note After above test the button will turn grey If this test result is not satisfied to have a test again press button after the software is ...

Page 41: ...ice 1 When Time clock s shows it means the standard clock source is normal Vice versa 2 When the clock tested shows it means the PPS pulse sent to tester from MU is valid When the Time clock shows in it means the PPS is invalid 3 When Time clock and clocked tested both show the test shall be permitted to start 3 7 5 Sample report Synchronization accuracy Timekeeping accuracy 3550nS ...

Page 42: ...U SV input Analog signal IEC 60044 8 9 2 or 9 2LE MU SV output 9 2 or 9 2LE IEC 60044 8 3 8 2 Test Configuration It is able to keep the same configuration of accurate test Same as 3 1 2 2 3 8 3 Start test 3 8 3 1 Parameters Set the voltage current amplitude and phase angle when doing the power calculation ...

Page 43: ...erger Unit Test User Manual 43 3 8 3 2 Start test Click the button in the software interface Or press button in the hardware local controller on POM2 3333 Or connect into external PC to press F2 to start the test ...

Page 44: ...ted When the accuracy test has been completed press ESC in the software or on the tester or ESC on the external PC to stop the test If there are new test items to be tested The wiring connection is the same the previous steps can be omitted only need to switch Testing data observation If there are new test items to be added press after the new testing page is switched Note After above test the but...

Page 45: ... Theoretical 32 870MW 122 673MV ar 127 000MVA 75 000 0 259 Measured 32 779MW 122 232MV ar 126 551MVA 74 988 0 259 Error 0 09116M W 0 44082MV ar 0 44939MVA 0 012 3 phase Voltage Ua Ub Uc Current Ia I b Ic Theoretical 98 610MW 368 018MV ar 381 000MVA Measured 98 252MW 366 927MV ar 379 854MVA Error 0 358MW 1 091MVar 1 146MVA Phase A Voltage Ua Current Ia Theoretical 596 705M W 217 183MV ar 635 000MVA...

Page 46: ...guration It needs to guarantee that 2 groups of bus bar voltages of MU separately connect into the output channel of tester Va Vb Vc and Va Vb Vc The other configuration of Sampling value could be set as per 3 1 2 GOOSE Publish In the following interface insert SCD file and choose GOOSE control module which is requested by voltage switch or voltage parallel to publish the GOOSE message The configu...

Page 47: ...ce Or press button in the hardware local controller on POM2 3333 Or connect into external PC to press F2 to start the test 2 By sending GOOSE message or binary input output to send the message of switch and its change to MU GOOSES publish In the following interface in the right column making tick or not to choose False or True of Binary position or turning over between 01 and 10 ...

Page 48: ...rger Unit Test User Manual 48 Binary input output change message publish In the following red frame by choosing different channel The operation of close or open status of the binary input output could be finalized ...

Page 49: ...POM2 3333 Merger Unit Test User Manual 49 3 9 3 3 Real time monitoring data ...

Page 50: ... ESC in the software or on the tester or ESC on the external PC to stop the test If there are new test items to be tested The wiring connection is the same the previous steps can be omitted only need to switch Testing data observation If there are new test items to be added press after the new testing page is switched Note After above test the button will turn grey If this test result is not satis...

Page 51: ... the independent test the users only need select configuration zone to choose the message type There are IEC61850 9 2 and IEC60044 8 available Refer to part 3 1 2 2 3 10 3 Start test 3 10 3 1 Test configuration Please refer to part 3 1 3 1 3 10 3 2 Start test Press button on the test interface or on the tester POM2 3333 or F2 on the externally PC to run the test 3 10 3 3 Real time monitoring data ...

Page 52: ...POM2 3333 Merger Unit Test User Manual 52 Press Fresh to get the latest messages GOOSE Analysis ...

Page 53: ...ware or on the tester or ESC on the external PC to stop the test If there are new test items to be tested The wiring connection is the same the previous steps can be omitted only need to switch Testing data observation If there are new test items to be added press after the new testing page is switched Note After above test the button will turn grey If this test result is not satisfied to have a t...

Page 54: ... Test User Manual 54 3 10 3 6 Report In this item there is no test report 3 10 4 Notice The user will acknowledge the message structure and information well according to SMV and GOOSE analysis and complete the related tests ...

Page 55: ...180 90 60 60 For class 3 and class 5 the current error at rated frequency shall not exceed the values given in table 13 when the secondary burden is any value from 50 to 100 of the rated burden Table 2 Class percentage current ratio error at percentage of rated current shown below At the rated current Phase displacement 50 100 Not specified 3 3 3 5 5 5 C 2 Limits of error for protective current tr...

Page 56: ... for protective electronic voltage transformers are 3P and 6P and the same limits of voltage error and phase displacement will normally apply at both 5 of the rated voltage and at the voltage corresponding to the rated voltage factor At 2 of the rated voltage the error limits will be twice those at 5 of the rated voltage When electronic voltage transformers have different error limits at 5 of the ...

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