1.1Product Introduction Apva-401 is a special instrument for testing characteristic of ct; the tester can finish ct transformation ratio test, ct polarity test, volt-ampere feature curve drawing and ct error drawing. It has large output, high precision, stable performance and automatic testing. 1.2 Funtion 1 ct transformation ratio test 2 ct polarity test 3 ct volt-ampere feature curve measurement 4 ct ratio error measurement 5 error curve measurement 6 result print 7 unload data to pc 8 pc online test .
