Zhengzhou Great Electric Co.,Ltd.
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Porable CT PT Test Equipment Analyzer MCVT405
Main Features
| CT Test | PT Test |
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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 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 11) CT Residual Magnetism determination and demagnetization |
1) Turns ratio test 2) Ratio error test 3) Phase angle error test 4) Polarity test 5) Secondary burden test 6) Winding resistance test
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| • Accuracy limit value coefficient(ALF) • Instrument security factor(FS) | |
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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 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 |
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Applications
• CT nameplate guess • CT parameters check in work burden • PT routine test
• CT transient parameters analysis • CT ratio and phase error calibration
Technical Index
| Test standards | IEC60044-1, IEC60044-6, IEC60044-2, IEC60044-5, C57.13 |
| Power supply | AC220V±10%, 50/60Hz±10% |
| Voltage/Current output | 0.1~180V (AC) / 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 & error | |
| Range | 1~35000 |
| Error | 1~5000 (error<0.05%) & 5000~35000 (error<0.1%) |
| Phase measurement | |
| Error & Resolution | ±2min & 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 measure | |
| Range & Error | -50~100 Celsius degree & <3 Celsius degree |
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CT Secondary burden |
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| Range | 0～160ohm (automatically change range in 2ohm/20ohm/80ohm/160ohm) |
| Error | <0.2%RDG+0.02%FS |
| Maximum resolution | 0.001ohm |
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PT Secondary burden |
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| Range | 0～80kohm (automatically change range in 800ohm/8kohm/80kohm) |
| Error | <0.2%RDG+0.02%FS |
| Maximum resolution | 0.1ohm |
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PT ratio measurement & error |
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| Range | 1~35000 |
| Error | 1~10000 (error<0.1%) & 10000~35000 (error<0.2%) |
| PT ratio error measurement | |
| Error | Typical error <0.05%, Maximum Error<0.1% |
| PT phase angle measurement | |
| maximum error | < 3min |
| Others | |
| Memory capacity | >1000 groups test results |
| Working condition | temperature: -10℃～50℃; moist: ≤90% |
| Size | 485mm×356mm×183mm |
| Weight | <15kg |