| Customization: | Available |
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| After-sales Service: | Lifetime Technical Support |
| Warranty: | 1 Year for CT PT Test Set |
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Transformer CT PT testing refers to the process of evaluating the performance and accuracy of Current Transformers (CTs) and Potential Transformers (PTs) used in power systems. CTs and PTs are specialized transformers that are employed for current and voltage measurement, respectively, in electrical power systems.
The purpose of CT PT testing is to ensure that these transformers operate correctly and provide accurate measurements. This testing is crucial because CTs and PTs play a vital role in power system protection, control, and metering. If CTs or PTs provide inaccurate measurements, it can lead to incorrect relay operations, inefficient energy management, and potential safety hazards.
During CT PT testing, various parameters are evaluated to assess the performance of the transformers. These parameters may include accuracy, burden, ratio, polarity, saturation, and phase angle error. The testing process involves applying known values of current or voltage to the transformers and comparing the measured values with the expected values.
By conducting regular CT PT testing, power system operators can ensure the reliability and accuracy of the measurement equipment, leading to efficient and safe operation of the power system.
Specifications:
| Item Name | Potential Current Transformer Test Medium Voltage CT PT Tester | |
| 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% |
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| 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% |
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| 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 |
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| Memory capacity | >1000 groups test results | ||
| Working condition temperature | -10ºC~50ºC; moist ≤90% | ||
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