Abstract
A disassembly analysis and treatment of abnormal oil level fault of current transformer expander is introduced in this article. After returning to the factory for a comprehensive electrical test and investigation, it was found that the reason was the wrong wiring of the zero screen lead. Recommendations for quality control and preventive measures and operation and maintenance procedures for this type of electrical equipment are given in this paper, providing a basis for further research.
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More From: IOP Conference Series: Earth and Environmental Science
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