2F, 4Cell, Tower C, In.Do Mansion No.48A Zhichun
Contents
1. Lus ls _____________________3 Ratio _______ Rmiotmr Phase Displacementimins 335 O Ratio Error 0 30171 Turn Ratio Burden Q Polarity 19 PCT200 Series CT PT Test System User Manual Standard 1 7125 A 1 0474 A 0 7407 A 0 5512 0 392 A 0 311 0 2326 A 0 1864 A 0 1426 A 74 1968 V 0 0532A 68 5332 0 0033Aq 14 3357 V 72 1246 V 0 0415 67 8283V 0 00254 11 2026 V 72 2054V 0 0028A 6697 0 0019 8 8421V 71 8511 V 0026A 55552 v 0005A 6 4353 71 4819 V 0 021 A 64 7667 V 0 0012A 4 0507 V 71 2662 V A 0 0069A 63 149V 0 0000A 2 3488 V 70 9244 7 0 0138 61 2065Y 0 0006 1 34 70 6864 V 0 0115A 58 8594 V 0 0008A 0 8541 V 70 2665 V 0 0098A 55 6582V 0 0004A 0 5055 V 0 1082A 08885 v 0 0085 505515 v 0 0003A 0 304 V 0 0854 A 1 69 4875 V 0 0063 31 7101 V 0 2187 V 0 0654A 68 9856 V Y 20 7487 V z 5 9 29 C z C lt _ ___ _____ 20 PCT200 Series CT PT Test System User Manual V A Curve E Knee Point 21 PCT200 Series CT PT Test System User Manual 4 Burden Test 4 1 Wiring Connection Connecting the instrument transformer according to the below direction while doing secondary2. CT excitation polarity ratio secondary side winding resistance and demagnetization tests all can be done after selecting auto test unit and pushing run button When it is finished the test automatically stops and the lamp is off Ratio excitation knee voltage polarity secondary side resistance test result can be checked in this unit Excitation test result should be checked in excitation unit PCT200i v4 0 5 CT Settings CT Excita CT Ratio CT RetiPolarityDemagnet Burden Auto Test PT Test Report CT Test Task CT Parameter SN I Rct Winding Polarity Ratio Ipn A 15 Demagnet CT Result Ret Q V kn V Excitation Polarity I kn A Ratio Coarse Ratio Select All Ipn isn Coarse Ratio Stop 35 PCT200 Series CT PT Test System User Manual 5 3 Application Examples 5 3 1 Transmission line CT Test 36 PCT200 Series CT PT Test System User Manual 5 3 2 CT Test in Y Voltage Transformer In order to reduce interference other windings of the CT voltage transformer should be short circuit 37 PCT200 Series CT PT Test System User Manual 5 3 3 CT Test in the Star Connection Voltage Transformer In order to reduce interference other voltage transformer s windings should be short circuit 38 PCT200 Series C
3. P TP M 0 2S P M 0 2S Ratio polarity Coarse ratio 4 Guess ratio 4 Turn ratio and error 4 Ratio error and phase 100 displacement Burden 4 Excitation characteristic CI Knee point V I Remanence flux Kr Secondary time constant Ts Unsaturated inductance Lu Saturated inductance Ls Safety factor FS Accuracy limit factor ALF Composite error c PCT200 Series CT PT Test System User Manual Eal Transient area factor Ktd Rated symmetrical short circuit current ratio Kssc Peak instantaneous error Guess nameplate Assessment Report tools Ratio 4 Polarity Excitation characteristic Notes The symbol indicates it has the function The symbol indicates there it doesn t have the function 1 2 Technical Specifications PCT200 Series CT PT Test System User Manual Items PCT200Li PCT200i PCT200Ai PCT200Mi Output voltage d 0 120V range Output current 0 5Arms 15A peak range Output power 0 001 500VArms 1500VA peak Ratio test 5000 1 35000 45000 5 35000 45000 5 35000 45000 5 range 5000 5 1 2 000 0 05 Typ 1 2 000 0 02 Typ 1 2 000 0 02 Typ 0 10 Gur 0 05
4. The report can be converted into EXCEL format in PC More than thousands of reports are saved in it for checking and printing Users can export the test results by U disk as well as upgrade The report tool software is convenient for report saving converting and analyzing which is for 11 PCT200 Series CT PT Test System User Manual data contrast judgment and assessment User defined test according to the defined standards PT test items ratio polarity and volt ampere characteristic 12 PCT200 Series CT PT Test System User Manual 1 4 Operation Preparation Preparation CT secondary side load loop disconnection and secondary winding off grounded CT primary side disconnects with busbar Order of connection Power 1 The chassis of PCT is grounded 2 One end of CT primary side grounded P2 Note There is a grounding switch in one side of primary No matter the grounding switch is in P1 or P2 only one end is supposed to ground 3 The test lead connects with P1 P2 of CT 4 The other end of the lead connects with P1 P2 of PCT200i 5 One secondary side connects with one group of CT s S1 and S2 6 The other Secondary side connects with S1 S2 of PCT200i 7 Power on 13 PCT200 Series CT PT Test System User Manual 1 5 Block Diagram Serial PCT200i Diagram Power Supply VOLTAGE CONTROL 16 bit DIA MCU CARD Embedded Computing OUTPUT 0 120V max Voltage generator C
5. f gt z T meas C 25 08 Seq sj Standard 160044 1 La Seq time test ms Ktd 5C T tal Ts ms L amba 27 PCT200 Series CT PT Test System User Manual TPY type CT parameter setting CT Settings Ratio Rct Polarity Demagnet Burden Auto Test PT Report Report Information Head SN Clear TmeReset wndng 1 81 s 2 555 Settings prem gt 600 7 va 5 z Standard 60044 6 Isn A d Extention 2 s FP z 25 cosg 08 ALF 20 gt Seq kia E ru 3 Seq time test ms T Ts ms bd Tp ms T eU tal M type parameter setting PCT200i v4 0 5 CT Settings CT Excita CT Ratio cT RetiPolarityIDemagnet Burden CT Auto Test PT Test Report Report Information Head sn Type Clear Result Time Reset 2012 6 12 11 42 39 V 1 11 8 12 Settings CTType M gt 1600 VA Standard 00044 6 5 Extention 120 8 Class 02 25 0 8 Fs 5 Seq M Seq time test ms Ktd Kssc x tal v 100 Ts ms Tp ms 20 100 tar tfr 200 28 PCT2
6. load impedance test CT Wiring direction The transformer s output end S1 and testing end S1 are connected with one side of secondary load the CT The transformer s output end S2 and testing end S2 are connected with the other side of secondary load of the CT 22 PCT200 Series CT PT Test System User Manual 4 2 Test Operation Entering the main menu and selecting the Rct polarity demagnification load impedance test unit CT secondary burden measuring can be done After entering this unit and moving the mouse in the load impedance testing zone the test software button is automatically available The load impedance test can be finished pressing start button The test result will be shown in the data fill bank after testing it stops automatically and the cursor is off 2001 v4 0 5 CT Settings CT Excita CT Ratio CI RcuPolariyDemagnet Burden CT Auto Test PT Test Report CT Polarity CT Ret 1A 25 C 75 fo Demagnet Burden z 23 PCT200 Series CT PT Test System User Manual 5 CT Test 5 1 Wiring Connection While doing the CT secondary coil resistance polarity excitation demagnetization and ratio test the instrument transformer tester should be connected according to the below diagram LI 6 E Wiring direction The transformer s output S1 a
7. 0 5 and the max overload would be 12 5VA For this the lower the CT coil resistance the bigger the contact resistance s effect When testing a 5ACT such contact resistance might cause a completely wrong result But if a higher resistance such as 100 the error can be igored So the four cable conection is absolutely applied in 25 PCT200 Series CT PT Test System User Manual testing Showing as the following diagram Four cable connection The testing will not be affected by voltage drop the CT testing result is correct Two cable connection The measuring voltage includes the voltage drop that clap contact resistance generates then the CT measuring result might be incorrect 26 200 Series CT PT Test System User Manual 5 2 Test Operation 5 2 1 Settings Select CT parameter setting menu after entering into main menu The CT nameplate parameters can be set by mouse or keyboard The testing result will be correct on condition that the settings are right The related parameter settings are based on the selected CT type All the parameters can selected in the drop down menu or by mouse P type CT parameter setting PCT200i v4 0 5 CT Settings Jer Excita CT Ratio CT RetiPolarity Demagnet Burden CT Auto Test Test Report Report Information Head sn Type Clear gt Result 2012 46 12 11 42 39 Windng s 1 8 12 Settings CTType VA fis Extention 20 z
8. 00 Series CT PT Test System User Manual 5 2 2 Rct Measuring CT secondary winding resistance test can be done after selecting the Rct Polarity Demagnet Burden measuring unit Entering the Rct measuring unit the secondary winding Rct can run automatically after pressing the run button The measuring result 25 C means the resistance at current temperature and the 75 C means the resistance 75 C After testing it stops automatically and the lamp is off PCT200i v4 0 5 CT Settings CT Excita CT Ratio CI CT Auto Test Test CT Polarity CT Ret 1A 25 C 75 C Demagnet Burden 29 PCT200 Series CT PT Test System User Manual 5 2 3 Demagnetization CT demagnetization can be done after selecting the Rct Polarity Demagnet Burden unit The process will automatically run when entering the unit and pushing the run button After the process it will automatically stop and the lamp is off PCT200i v4 0 5 CT Settings CT Excita CT Ratio CI RcuPolarityDemagnet Burden CT Auto Test Test Report CT Polarity CT Ret 1A 25 C 75 C CT Demagnet 30 PCT200 Series CT PT Test System User Manual 5 2 4 Polarity Test CT polarity check can be done after selecting the Rct Polarity Demagnet B
9. 3 1 Transmission line C T TBBE eoo rode 36 5 3 2 CT Test in Y Voltage Transionner A eec reet ra eet eite 37 5 3 3 CT Test in the Star Connection Voltage 38 53 4 BUSHINGS les 39 PCT200 Series CT PT Test System User Manual 5 3 5 Test CT with Tapping 40 41 XX 41 611 41 _ _ _ _ _____3__ _ _ _ _3 _ _ 3 33 _ 233 __ ___ 43 2 ___ _ V 44 44 L M lt REIR Re dan 45 6 2 3 Excltatiol M 46 47 PCT200 Series CT PT Test System User Manual 1 General Description 1 1 Functions PCT200Li PCT200i PCT200Ai PCT200Mi CT type P TP
10. Excita cT Ratio CT RetiPolarityIDemagnet Burden CT Auto Test PT Test Report Report Information Head abc Time Reset 117472010 6 04 51 PM Parameter Upn KV 35 Primary A N 110V Secondary a n f winding Pol Ratio test i i i Ratio 215 621KV 110V P 1 0 anni ann n1 in Barry Pol Excitation test V A Curve Run Stop js m Press Save button to save the testing report after finished the test 46 PCT200 Series CT PT Test System User Manual Appendix Glossary CT current transformer PT Voltage transformer P TP M the type of CT P protection current transformer class P M measurement current transformer PR protection current transformer class PR PX protection current transformer class PX TPY protection current transformer class TPY TPX protection current transformer class TPX TPZ protection current transformer class TPZ TPS protection current transformer class TPS Standard including 60044 1 IEC60044 1 60044 6 IEC60044 6 ANSI30 ANSI45 f frequency 05 rated primary current Isn rated secondary current composite error ALF accuracy limit factor Class accuracy class FS instrument security factor power T meas temperature of measurement Seq sequence Ktd transient dimensioning factor Ts seco
11. Gur 0 05 Gur 1 5000 2 000 5 000 0 08 T Ratio test 2 000 5 000 0 0396TypO 2 000 5 000 03 Typ 0 1 0 10 Typ yp 0 15 Gur accuracy 10 Gur 0 0 20 Gur 5 000 30 0000 5 000 30 0000 5 000 30 000 0 05 0 10 T 0 05 Typ 0 20 Gur 0 20 Gur 0 20 Gur point 5 000V 45 000V 45 000V voltage Burden test 0 1 1m 0 05 1mQ Typ 0 1 1 0 Gur accuracy Q Winding resistance 0 1 1m 0 0590 1 0 0 1 1 0 Gur test 0 10 0 20 Ratio error 0 05 0 10 Gur 0 02 0 05 Gur 5min Typ 10min 1min Typ 3min Gur 1min Typ 2min Gur displaceme Gur 0 01min 0 01min PCT200 Series CT PT Test System User Manual nt 0 1min 110 240Vac 50 60Hz Nominal Main supply 90 260Vac 45 65Hz Permissible Operation 10 50 C temperature Relative humidity 9096 non condensing Dimensions 470x200x245mm WxHxL Weight 11kg LCD display 8 4 inch color display Operating system Windows 10 PCT200 Series CT PT Test System User Manual 1 3 Features Apply the newest principle of multi point DC method and meet the standards of IEC 44 6 and GB 16847 Measure ratio differential and angle differential accurately The max ratio differential error is 0 1 max angle differential error and the ratio measureme
12. PCT200 Series CT PT Test System User Manual PONOVO POWER CO LTD 2F 4Cell Tower C In Do Mansion No 48A Zhichun Road Haidian District Beijing China Post Code 100098 TEL 86 10 82755151 ext 8887 Office FAX 86 10 82755257 Info ponovo com cn Website www ponovo com cn PCT200 SERIES CT PT TEST SYSTEM USER MANUAL VERSION PCT200 SERIES AE 1 00 DATE 26 06 2012 This manual is the publication of PONOVO POWER LTD Any form of copy should obtain the consent of it 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 without prior notice PONOVO POWER PONOVO explicitly exonerates itself from all liability for mistakes in this manual PCT200 Series CT PT Test System User Manual Notes A In order to prevent static electricity the PCT and test CT must be connected to ground safely before test A Avoid electric shock accident when the output voltage is above 36V A Short circuit is prohibited at output side while testing A Connect wires in accordance with instructions A External voltages and currents are prohibited to apply on the tester s output A Avoid the equipment being wet by rain A Contact manufacturer timely and do not rep
13. T PT Test System User Manual 5 3 4 Bushing CT Test In order to reduce interference other windings of the CT voltage transformer should be short circuit HH 39 PCT200 Series CT PT Test System User Manual 5 3 5 Test CT with Tapping All the windings in the same shank are all switched on while testing CT with tapping 40 PCT200 Series CT PT Test System User Manual 6 PT test 6 1 Wiring Connection 6 1 1 Polarity and Ratio Test Connect instrument transformer tester as illustrated in below when doing PT polarity ratio test Wiring directions T fa 1PH VT 3PH VT The output A of transformer is connected with one side of PT primary The output N of transformer is connected with one side of PT primary The secondary testing end a of transformer is connected with one side of PT secondary The secondary testing end n of transformer is connected with the other end of PT secondary 41 PCT200 Series CT PT Test System User Manual Note The wiring for primary and secondary cannot be wrong otherwise it may give thousands of voltage 42 PCT200 Series CT PT Test System User Manual 6 1 2 Excitation Test Connect transformer tester as illustrated in below when doing PT excitation test s e600 3PH VT 000 0 0 ojo Single phase voltage transformer 4 11 11 ooo 3PH VT Three phase voltage
14. air it when device works abnormally PCT200 Series CT PT Test System User Manual Special Tips 1 CT PT testing system called PCT is applied in the electromagnetic current transformer CT and electromagnetic voltage transformer PT of power system It completes the following test items CT load impedance CT secondary coil resistance Rct CT excitation characteristic CT ratio CT polarity PT ratio and polarity PT excitation characteristic PCT is only used in the above fields and the wiring connection operations should be executed in the guide of the user manual Any other usage is invalid The users must operate PCT in the proper way Otherwise improper operation might cause damage The manufacturer will not take any responsibility for such damages The users assume all responsibilities and risks 2 3 The power supply must be accordance with the requirements described in user manual Users can t maintain the PCT without manufacturer s authorization Otherwise the warranty period is invalid Users can t disassemble the PCT without manufacturer s authorization Otherwise the warranty period is invalid 10 11 12 PCT200 Series CT PT Test System User Manual It is prohibited to maintain reform extend or change the system or any other accessories Only original accessories are accepted in test and detection process It is not allowed to connect or disconnect the test object in the operation proce
15. can control the output While output the operation indicator will flash 3 4 Save Test Report After testing select the report menu and enter into report save interface The report name is put in by keyboard and the content is selected by mouse selection The report is saved automatically in the CT report file The report can be copied and converted into EXCEL format in PC by U disk 17 PCT200 Series CT PT Test System User Manual 2001 v4 0 5 CT Settings CT Excita Ratio cT RetiPolarityIDemagnetBurden CT Auto Test PT Test Report CI Contents s V A Data Iv Polarity report tool Ratio Data Ret iv Burden Coarse Ratio Select None PT Save Report There are two ways to view test reports locally One is to view the test results in Report tools The other way is to view in EXCEL format in PC 18 200 Series CT PT Test System User Manual The following is sample test report A4 North Klang Straits 55 CT SN EY Clas05 2010310000 Frequency WHL _ Power Factor Primary Current A 120 Secondary Current Aj Rated Burden VA 15 CT Temperature C Widing 151 182 odi _ _ _ __ _ Knee Poin sa Knee Point 0 01009 __ Ts pir _
16. n RE 15 16 3 1 Select 16 SSr TOSr 17 a9 Control 17 34 94796 Test eoe et Ee e Oe eU ee te eet eee Ede ec e PD POR PD EUR 17 4 Burden M M 22 AWIN CONN ECO nuce eae cc ace a a nc a ue en ala taedet ierat aci M leas 22 4 2 Test CVC28 81 60 e tuts tnt Men AEA Uo Edo debeo 23 ER 24 M M 24 2 6068 AO cs ce see EE 27 27 6 6 es ont 29 30 taii 31 5 2 9 Excitation T6St i 32 A Ante o EL 34 5 2 7 6 n dde d ed dd Pe n ces 35 5 3 Application Examiples o ii 36 5
17. nd testing side S1 are connected with one side of CT secondary The transformer s output S2 and testing side S2 are connected with the other side of CT secondary The transformer s primary test side P1 is connected with one side of CT primary The transformer s primary test side P2 is connected with the other side of the CT primary 24 PCT200 Series CT PT Test System User Manual The comparison between four cable and two cable testing The transformer secondary tap is connected by claps and the following four cable connection is applied Four cable connection Two cable connection Otherwise the chuck resistance might affect measuring result and the CT tester might list the incorrect measuring result Four cable connection CT output terminal and input terminal are connected with tested objects by different claps Every testing cable needs a clap CORRECT Two cable connection Single testing cable is applied in CT output terminal and input terminal But the testing cable is connected with the transformer by a public clap Two testing cables use a public clap INCORRECT Physics background While two cable is applied if there is contact resistance in the CT clap there will be big measuring error between the differential error and other parameters Because the contact resistance might have change when the clap connect or disconnect with CT the measuring result can t be repeated The max contact resistance of two claps will be
18. ndary loop time constant Kssc rated symmetrical short circuit current factor Tp ms specified primary time constant Seq time test ms 47 PCT200 Series CT PT Test System User Manual tal permissible time to accuracy limit t the duration of second current flow t the duration of first current flow tal Specified accuracy being maintained in tal tal Specified accuracy being maintained in tal tfr dead time during auto reclosing V kn The voltage of knee point I kn The current of knee point Rct secondary winding resistance Eal rated equivalent limiting secondary e m f Kr remanence factor Lu Unsaturated inductance Ls Saturated inductance Ktd transient dimensioning factor peak instantaneous total error Upn rated primary voltage Usn rated secondary voltage 48
19. nt range is 1 35 000 Calibration certificate approved by Wuhan High Voltage Institute The report includes angle differential ratio differential test and stability test 8 4 LCD with colorful graphical interface for HMI The whole integration structure anti vibration and anti electromagnetic interference combination chassis Built in computer for operation All test items are completed automatically Light weight and small dimension due to small voltage and power output Built in linear amplifier for quick response and high accurate The max output AC voltage is 120V and max output current is 5Arms 15A peak value The voltage measurement method is used to test CT The highest test knee point voltage of CT is about 45 000V And the excitation characteristic test speed is fast These features surpass that of traditional analyzer Apply to various types of CT including TP type excitation ratio polarity secondary winding resistance load ratio differential and angle differential etc steady state or transient characteristic test Automatically test knee point voltage current 5 10 error curve ALF FS Ts and Kr etc CT parameters Users can select ten groups of excitation data to save It lists the ratio error and phase error table and changes the report data in condition the rated current 1 300 be set The PCT automatically memories test items report items and report setting items
20. olor LCD 8 4 14 PCT200 Series CT PT Test System User Manual 2 Panel Description PT PCT200i CT PT TESTING SYSTEM Connecting CT secondary side 2 Secondary side voltage test while testing CT PT PT Excitation only 3 Primary side voltage test while testing CT 4 Connecting PT primary side 5 Secondary side voltage test while testing PT 6 N Rotary encoder selecting menu and setting specifications Run and stop buttons Keyboard USB interface LCD display 1 Runlamp output indicator flashing while outputting 0 11 15 PCT200 Series CT PT Test System User Manual 3 Operation Instruction 3 1 Select Test Functions Choosing main menu button at any interface to enter then rotating rotary encoder to change the cursor position and select specified testing button The selected operation is displayed in the below PCT200i v4 0 5 CT Settings CT Excita CT Ratio CT Auto Test Test CT Polarity CT Ret 1A 25 C 75 C 6 9 MV CT Demagnet Burden 16 PCT200 Series CT PT Test System User Manual 3 2 Set Test Parameters Set variable parameters by pushing keyboard and pressing mouse 3 3 Control Output The run and stop buttons on the panel or the start test and stop test functions
21. ss The high voltage caused by energy storing in external inductance might damage the human PCT and test object Make sure that the terminals of the test objects are not charging to exit the program Please make wiring connection in the guide of user manual while making CT test If the wiring is wrong the high voltage might damage the CT or PCT Please make wiring connection in the guide of user manual while making PT ratio and polarity test If the users connect the PCT output with the secondary side of PT thousands of volts high voltage might be generated in the primary side and damage the PT or PCT Please make wiring connection in the guide of user manual while making PT excitation test The PCT output must be connected with the secondary side of PT If it is connected with the primary side of PT it might damage the PT or PCT The data and parameters in the nameplate are only for reference PONOVO explicitly exonerates itself from all liability for mistakes in this manual PCT200 Series CT PT Test System User Manual Content 1 General i o re t m rcm IM IE SS 7 DM 5 VI0CICI5 oss oo os ooo P P 7 1 2 Technical Specifications filet lel eta 9 1 3 11 1 4 Operation Preparation eer te RR rere tr lass a e m ak coeno or dr ud ede 13 15 ele 14 2 Panel Descriptio
22. t magnetic flux and inductance CT Settings CT Excita Ratio CT RetiPolarityiDemagnet Burden CT Auto Test PT Test Report V A Dal Result ums Remanence V knvy 4778 1 68472 278174 871762 0 15486 1 0 11578 2 215382 654196 0 15459 3 166745 490551 0 15427 tcs 006146 4 129740 3 69061 0 15391 FSs 5 101314 27553 015352 Rez5 Qy 02016 _ 6 0 80147 206569 0 15298 Ret Q 19 7 064141 155620 015222 8 051731 1 16801 015123 kr 07786 040276 087406 0 15057 Ts sy 53488 031419 065471 0 14901 PO 0 24392 049109 0 14668 0 18795 036757 014364 24 0 14450 0 27584 013993 005 0 11129 020707 0 13514 Standard 600441 DEI 33 PCT200 Series CT PT Test System User Manual 5 2 6 Ratio Test CT ratio test can be made in Ratio test CT ratio differential angle difference composite error and turns ratio error can be automatically tested When the test is completed it stops automatically and the lamp is off PCT200i v4 0 5 CI Settings CT Excita CT Ratio CT Rct Polarity Demagnet Burden CT Auto Test PT Test Report Rated Parameter Ratio Error at Ipn VA cosphi 1 596 15 00 0 8 375 10 Phase Displacement min Ipn cosPhi 0 8 10 min crad 34 PCT200 Series CT PT Test System User Manual 5 2 7 Auto Test
23. transformer Wiring directions The output S1 of transformer is connected with one side of PT secondary The output S1 of transformer is connected with the other side of PT secondary PT primary end is connected with a reliable ground and other windings are open circuit Notes Keep off the instrument in case that thousands of voltage may occur while doing excitation test 43 PCT200 Series CT PT Test System User Manual 6 2 Test Operation 6 2 1 Settings Set parameters according to PT nameplate 2001 v4 0 5 CI Settings CI Excita CI Ratio Rcti Polarity Demagnet Burden CT Auto Test PT Test Report Report Information Time Reset 2012 6 12 11 38 07 su Parameter Upn kV 35 Primary v 5774V Secondary f 60Hz Winding 1 Pol Ratio test Ratio Error Run V A Curve Pol Excitation test V A Curve 44 PCT200 Series CT PT Test System User Manual 6 2 2 Polarity and Ratio Test The PT polarity ratio test can be automatically finished after selecting polarity ratio and pushing run button It stops automatically and the lamp is off 45 PCT200 Series CT PT Test System User Manual 6 2 3 Excitation Test Enter into PT test unit and then choose excitation test Every voltage and current value can be checked in the excitation curve CT Settings CT
24. urden unit The polarity test is automatically finished while pushing the run button It stops automatically and the lamp is off The test method is negative polar PCT200i v4 0 5 CT Settings CT Excita CT Ratio CI RcuPolarityDemagnet Burden CT Auto Test Test Report Polarity CT Ret 1A 25 C 75 C 31 PCT200 Series CT PT Test System User Manual 5 2 5 Excitation Test CT Settings Excita Ratio CT RetiPolarityIDemagnet Burden CT Auto Test Test Report Result V kn V fas 75 1 0 17482 es FSs aas Ret5 Qy 023 0177 usu I0 04 Standard 60044 1 lt Cursor gt 015 0 00245 w V A Data Run Stop CT excitation test can be done after selecting the Excita unit The test will automatically run while entering the Excita the lamp is off unit It stops automatically after test and The test result displays in curve and the voltage and current are shown at knee point 32 PCT200 Series CT PT Test System User Manual Red cross will be shown at the knee point Press Cursor left Cursor right or put in figures related to the value to observe Press excitation button the excitation curve can be changed into data table pressing V A data to check every voltage curren
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