The CT and PT Tester is a revolutionary diagnostic system designed for testing various Current Transformers (CTs) and Potential Transformers (PTs) in accordance with international standards including IEC61869-2, IEC61869-3, and IEEE/ANSI C57.13. With a single click of the patented multifunctional rotary mouse, the analyzer automatically completes complex testing sequences within seconds.
| Parameter | Specification Details |
|---|---|
| Test Standards | IEC61869-2, IEC61869-3, IEEE/ANSI C57.13 |
| Max Knee Voltage | 40kV |
| Output Voltage | 0 ~ 180V (RMS) |
| Output Current | 0 ~ 12A (RMS), 36A (Peak) |
| CT Ratio Range | 1 ~ 30000 (Accuracy: ±0.05%) |
| PT Ratio Range | 1 ~ 10000 (Accuracy: ±0.05%) |
| Phase Measurement | Accuracy: ±2min, Resolution: 0.01min |
| Burden Range | 0 ~ 300VA (Accuracy: 0.1% ±0.1VA) |
The tester calculates ratio and phase angle errors by measuring turns ratio (Np/Ns) and excitation loss (Iex). The equivalence principle diagram below illustrates how Iex amplitude and phase position affect overall accuracy.
Figure: CT's equivalence principle diagram
The device is calibrated in third-party laboratories accredited under ISO/IEC 17025, ensuring global traceability and accuracy standards.
Our production facilities utilize advanced instrumentation including Agilent high-precision meters, EMH standard meters, and insulation test systems. We follow standardized processes certified by ISO 9001:2015, ISO 14001:2015, and OHSAS 18001:2007.


