Discussion on the method of measuring the loop resistance of high voltage circuit breaker by double-ended grounding technology

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Su, Yi^1 ; Lu, Yufeng^1 ; Xie, Zhibiao^1 ; Wang, Feifeng^1

Electric Power Research Institute of Guangxi Power Grid Co., Ltd, 6th Mingzhu Road, Nanning, GuangXi, China^1

关键词: Field operation;    High voltage circuit breaker;    On-site measurement;    Structural characteristics;    Technical indicator;    Test method;    Test scheme;    Work efficiency;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/4/042011/pdf
DOI  :  10.1088/1755-1315/295/4/042011

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Loop resistance is an important technical indicator reflecting the performance and operating status of high-voltage circuit breakers. The traditional test method requires at least one side of the grounding switches of the circuit breaker be opened, and the field operation needs to wait for the dispatch approval, so the work efficiency is extremely low. According to the actual requirements of on-site measurement of high-voltage circuit breakers, a test method and test scheme have been proposed in this paper for measuring loop resistance by using the double-ended grounding technology. At the same time, according to the structural characteristics of high-voltage circuit breaker, the test deviation between the method and the traditional test method is analyzed and compared. Finally, it is concluded that the test method for measuring the loop resistance through using the double-ended grounding technology can fully meet the actual needs of the project.