Error Test of Current Transformers with Low-voltage Deduced Method
Zhao Yi-tao · Electrical Measurement & Instrumentation · 2004
It is described in this paper, the error of current transformers could be tested by using deduced method, a current transformer could be tested as a v oltage transformer with the same error. At first, error and admittance could be tested at 200% to 1000% rated voltage(current), then error could be obtained aft er the calculation and the admittance tested at 1% to 120% rated voltage(current ). The generalization and application of this new method would bring a great eff ect to the calibration of locale current transformers.