CPT-I CT VT Testing Equipment
Testing for current transformer equipment:
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
Testing for Voltage Transformer equipment
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/ VT Testing Equipment:
1 CT nameplate check
2 CT parameters check in work burden
3 CT transient parameters analysis
4 CT ratio and phase error calibration
5 VT routine test
Specifications:
| Item Name | CT and VT Testing Equipment |
| 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 |
| Max. 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 in2ohm/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 | Error | 0~80kohm (automatically change range in 800ohm/8kohm/80kohm) |
| Maximum | <0.2%RDG+0.02%FS |
| 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 | -10℃~50℃; moist ≤90%
|
Spares of CT VT Analyer
