Features: 1) Intelligent equipment 2) Tests CT /PT voltage and current 3) Voltage-current characters ... efficient.Complete-function: to test the volt-ampere characteristics of CT/PT, ratio, polarity, error curve of 5% ,10%, ... 220V Output 0~2000VOutput current for volt-ampere 0-15 AOutput current for ratioInput 220V Output 0~600 AAccuracy ... prepared, the optional accessories are no need. CT PT Analyzer