GDVA-405 Current Potential Transformer Analyzer / CT VT Tester / CT PT Analyzer


Tests for Current Transformer:

» Excitation curve and parameters test
» Turns ratio test
» Ratio and phase error test
» Polarity mark check
» Winding resistance measurement
» Secondary loop burden measurement
» Error line curve test for protection CT
» Transient CT parameters test
» CT nameplate guess
» Saturation hysteresis loop curve measurement


Tests for Voltage Transformer:

» Turns ratio test
» Ratio error and phase angle error test
» Polarity test
» Secondary burden test
» Winding resistance test

Applications of CT/PT Analyzer:
» CT nameplate check
» CT parameters check in work burden
» CT transient parameters analysis
» CT ratio and phase error calibration
» PT routine test


CT/PT Analyzer Function and Technical Index:

» Test standards: IEC60044-1, IEC60044-6, IEC60044-2, IEC60044-5, C57.13
» Power supply: AC220V± 10%, 50/60Hz± 10%
» Voltage output: 0.1~180V (AC)
» Current output: 0.001~5A(RMS)
» Power output: 500VA
» Maximum knee voltage measurement: 45KV
» Current measurement:
Range: 0~10A (automatically change range in 0.1/0.4/2/10A)
Error: <± 0.1%+0.01%FS
» Voltage measurement:
Range: 0~200V (automatically change range in 1V/10V/70V/200V)
Error: < ± 0.1%+0.01%FS
» Turns ratio measurement:
Range: 1~35000
1~2000 error<0.05%
2000~5000 error<0.1%
5000~35000 error<0.2%
» Phase measurement: Error: ± 2min; Resolution: 0.01min
» Winding resistance measurement:
Range: 0~8kΩ (automatically change range in 2ohm/20ohm/80ohm/800ohm/8kohm)
Error: < 0.2%RDG+0.02%FS
Maximum resolution: 0.1mΩ
» Temperature measurement: -50~100 Celsius degree; Error<3 Celsius degree
» CT Secondary burden:
Range: 0~160ohm (automatically change range in 2ohm/20ohm/80ohm/160ohm)
Error: <0.2%RDG+0.02%FS
Maximum resolution: 0.001ohm
» PT Secondary burden:
Range: 0~80kohm (automatically change range in 800ohm/8kohm/80kohm)
Error: <0.2%RDG+0.02%FS
Maximum resolution: 0.1ohm
» PT ratio measurement:
Range: 1~35000
1~10000 error<0.1%
10000~35000 error<0.2%
» PT ratio error measurement: Typical error <0.05%, Maximum Error<0.1%
» PT phase angle measurement: Maximum error < 3min
» Make evaluation for test results according to selected standards
» Make word report for test result
» Make word reports one time for multi-group test records on the PC
» Calculate the ratio errors and phase angle errors at rated burden and working burden in one time test
» Compare excitation curves with saved excitation curves in the same window
» Memory capacity: >1000 groups test results
» Working condition: Temperature: -10º C~50º C; Moist: ≤ 90%
» Size: 485mm× 356mm× 183mm
» Weight: <15kg