PCT200Ai is the current transformer test set can finish various tests of different transformers. Compared with PCT200i,its accuracy is higher.This CT analyzer can test the 0.2s class CT.Only this CT analyzer – the high-accuracy current transformer test set has passed the tests held by Wuhan High Voltage Research Institute.The max permissible error of ratio measurement is ±0.05% and max phase measurement is ±2min.


  • Can test M/P/TP type CTand PT
  • Ratio check up to 30000:1 and 45000:5
  • Knee point check up to 45,000 V
  • Standards: IEC 60044-1,  IEC 60044-6, IEC 61869-2, ANSI/IEEE C 57.13
  • Result saved directly in Excel format
  • Report can be transferred to flash disk via USB port.
  • Weight : 14kg  


Voltage output 0-120V
Current output 0~5Arms(15Apeak)
Ratio check  
Range 30,000:1 – 45,000:5
Accuracy 0.05%
Knee point check max. 45,000V
Burden measurement  
Range 0.001-1000 ohm
Accuracy ±0.1%±1mΩ Gur
Winding resistance test  
Range 0.001-1000 ohm
Accuracy ±0.1%±1mΩ Gur

Phase displacement check


Accuracy 2 min Gur
Resolution 0.01 min
Other test functions  
Accuracy limiting factor Yes
Instrument security factor Yes
Remanence flux Yes
Secondary time constant Yes
Unsaturated inductance Yes
Saturated inductance Yes
Symmetrical short circuit factor Yes
Accuracy limiting voltage Yes
Transient dimensioning factor Yes
Peak instantaneous error Yes
Composite error Yes
Dimensions 470×200×245mm (W×H×L)
Weight 14kg