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Introduction:
CPT-I CT PT Analyzer is used to measure all kinds of current transformer and potential transformer. It can calculate the ratio errors and phase angle errors of current transformer and potential transformer at rated burden and working burden in one time test.
The CT PT Analyzer can automatically evaluate the test results according to the selected standard to determine whether the transformer is qualified.
Tests for current 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
Tests for potential transformer:
1) Turns ratio test
2) Ratio error and phase angle error test
3) Polarity test
4) Secondary burden test
5) Winding resistance test
Specifications of CPT-I CT PT Analyzer:
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) PT ratio measurement error : typical error <0.05%, maximum error<0.1%
8) PT phase measurement angle : maximum error < 3min
9) Memory capacity: >1000 groups test results
10) Working condition: temperature: -10ºC~50ºC, humidty: ≤90%
11) Size: 485mm×356mm×183mm, weight: <15kg
| Item | Range | Error | Resolution |
| Current measurement | 0~10A (automatically change range in 0.1/0.4/2/10A) | <±0.1%+0.01%FS | / |
| Voltage measurement | 0~200V (automatically change range in 1V/10V/70V/200V) |
<±0.1%+0.01%FS | / |
| Turns ratio measurement | 1~5000 | <0.05% | / |
| 5000~35000 | <0.1% | / | |
| Phase measurement | / | ±2min | Resolution: 0.01min |
| Winding resistance measurement | 0~8kΩ (automatically change range in 2ohm/20ohm/80ohm/800ohm/ 8kohm) |
<0.2%RDG+0.02%FS | Maximum resolution: 0.1mΩ |
| Temperature measurement | -50~100 Celsius degree | <3 Celsius degree | / |
| CT Secondary burden | 0~160ohm (automatically change range in 2ohm/20ohm/80ohm/ 160ohm) |
<0.2%RDG+0.02%FS | Maximum resolution: 0.001ohm |
| PT Secondary burden | 0~80kohm (automatically change range in 800ohm/8kohm/80kohm) |
<0.2%RDG+0.02%FS | Maximum resolution: 0.1ohm |
| PT ratio measurement | 1~10000 | <0.1% | / |
| 10000~35000 | <0.2% | / |
Germany
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