摘要
介绍了一例500 kV CVT发生电压测量故障后的返厂检查和测试情况,并根据电容分压原理对出现的电压异常现象进行理论分析,认为CVT误差增大的主要原因是某电容元件击穿所致,要求制造厂加强设备生产质量管理。
This paper reports the check and test of a faulty 500 kV CVT, analyzes the abnormal phenomenon during voltage measuring based on voltage-dividing theory, then concludes that the breakdown of some capacity cells causes CVT inaccuracy, and the quality control of electrical equipment is necessary to be guaranteed by the manufacturers.
出处
《高压电器》
CAS
CSCD
北大核心
2008年第1期76-77,80,共3页
High Voltage Apparatus
关键词
CVT
电压异常
分析
元件质量
capacitor voltage transformers（CVT）
abnormal voltage
analyze
component quality
