GDVA-405 Popular Multifunctional Instrument Transformer CT PT Tester
Introduction:
GDVA-405 CT PT Analyzer is a comprehensive CT and PT analyzer. It's constant voltage and current is highly stable. DSP system controls the constant voltage and current source output and amplitude. This source generates AC of 0-125V and or DC of 0-0.5A current to sample CT. The DSP system besides controlling the sources, also samples data and communicates with the internal computer. Display screen is large LCD with touch pad.
GDVA-405 CT PT Analyzer is highly accurate with high noise immunity and is very user friendly.
CT Tests and PT Tests:
| Tests for Current Transformer | Tests for Potencial Transformer |
| 1 Excitation curve and parameters test 2 Turns ratio test 3 Ratio and phase error test 4 Polarity mark check 5 Winding resistance measurement 6 Secondary loop burden measurement 7 Error line curve test for protection CT 8 Transient CT parameters test 9 CT nameplate guess 10 Saturation hysteresis loop curve measurement | 1 Turns ratio test 2 Ratio error and phase angle error test 3 Polarity test 4 Secondary burden test 5 Winding resistance test |
Applications of CT PT Tester:
| 1 CT nameplate check 2 CT parameters check in work burden 3 CT transient parameters analysis 4 CT ratio and phase error calibration 5 PT routine test |
Technical Parameters:
| 1 Test standards: IEC60044-1, IEC60044-6, IEC60044-2, IEC60044-5, C57.13 2 Power supply: AC220V±10%, 50/60Hz±10% 3 Voltage output: 0.1~180V (AC) 4 Current output: 0.001~5A(RMS) 5 Power output: 500VA 6 Maximum knee voltage measurement: 45KV 7 Current measurement: Range: 0~10A (automatically change range in 0.1/0.4/2/10A) Error: <±0.1%+0.01%FS 8 Voltage measurement: Range: 0~200V (automatically change range in 1V/10V/70V/200V) Error: < ±0.1%+0.01%FS 9 Turns ratio measurement: Range:1~35000 1~2000 error<0.05% 2000~5000 error<0.1% 5000~35000 error<0.2% 10 Phase measurement: error: ±2min; resolution: 0.01min 11 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 12 Temperature measurement:-50~100 Celsius degree; error<3 Celsius degree | 13 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 14 PT Secondary burden: Range: 0~80kohm (automatically change range in 800ohm/8kohm/80kohm) Error :<0.2%RDG+0.02%FS Maximum resolution: 0.1ohm 15 PT ratio measurement: Range: 1~35000 1~10000 error<0.1% 10000~35000 error<0.2% 16 PT ratio error measurement: Typical error <0.05%, Maximum Error<0.1% 17 PT phase angle measurement: maximum error < 3min 18 Make evaluation for test results according to selected standards 19 Make word report for test result 20 Make word reports one time for multi-group test records on the PC 21 Calculate the ratio errors and phase angle errors at rated burden and working burden in one time test 22 Compare excitation curves with saved excitation curves in the same window 23 Memory capacity: >1000 groups test results 24 Working condition: temperature: -10ºC~50ºC; moist: ≤90% |
