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Analysis on an overheat fault of electromagnetic unit of 220 kV capacitive voltage transformer
Author(s): 
Pages: 73-75,78
Year: Issue:  4
Journal: Hunan Electric Power

Keyword:  capacitive voltage transformer ( CVT)electromagnetic unitinfrared detection technologydiagnostic test;
Abstract: The structure principles of capacitive voltage transformer ( CVT ) are introcluced and the overheating phenomena caused by internal fault of electromagnetic unit are analyzed in the paper. Based on infrared detection technology, a method combined with the power failure diagnostic test is proposed to diagnose the fault accurately and reliably. Finally some proposals on field detection and faults diagnosis of CVT are presented.
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