Electronic Current Transformer Test Method Research

With the extensive use of electronic current transformer, check the original method cannot meet the requirements of electronic current transformer performance testing technology. In 500 kV Jincheng a variable electronic current transformer as the test object, the principle and design characteristics of electronic current transformer, proposes an effective test method, ratio and through field test of low power coils and Rogowski coils 2 coil error, phase error and polarity, verify the validity and accuracy of the method.