Study of the Electronic Current Transformer's Additional Error Testing
Chunyan Yang, Dengyun Li, Haoliang Hu, Hui Peng, Yao Li, Tao Xu · 2017
The measurement accuracy of the electronic current transformer are susceptible to environmental factors and interference of external magnetic field.Based on analyzing the effect of temperature, primary wiring and harmonic factor on the measurement accuracy of current transformer of rogowski coil and full optical fiber current transformer, this paper formulated corresponding protocol and tested the additional error of two kinds of electronic current transformers.After comparison and analysis of experimental data, this paper got the error characteristics of temperature, primary wiring and harmonics.