Journal of Guangdong University of Technology ›› 2019, Vol. 36 ›› Issue (04): 65-69.doi: 10.12052/gdutxb.190025

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Design and Experimental Analysis of an Open-close Micro Current Transformer

Dong Wen-hua1, Li Chun-lai1, Lan Xiong2   

  1. 1. Department of Electronics and Information Engineering, Heyuan Polytechnic, Heyuan 517000, China;
    2. Guangdong Yada Electronics Co., Ltd., Heyuan 517000, China
  • Received:2019-02-22 Online:2019-06-18 Published:2019-06-18

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Abstract: An open-close micro current transformer is designed for the situation where power disconnection is not applicable and it can replace the conventional current transformer, realizing online installation. The open-close micro current transformer has a square core and a casing made of ferrite with a high permeability, flat cut and small air gap. According to the experimental analysis, it has the advantages of simple structure, convenient operation, high precision and good linearity. In the end, the measures to improve its precision are proposed.

Key words: online installation, current transformer, open-close, core structure, accuracy

CLC Number: 

  • TM452
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