Analysis and Treatment on Abnormal Secondary Voltage of Capacitor Voltage Transformer
Hu Weitao1, Yue Xiaoming2, Zhu Xiaohui3, Yan Jiawen3
1. State Grid Hebei Maintenance Branch, Shijiazhuang 050070; 2. State Grid Hebei Electric Power Research Institute, Shijiazhuang 050000; 3. State Grid Hebei Training Center, Shijiazhuang 050091
Abstract:Capacitor voltage transformers are important equipments in power network operation, which mainly consists of capacitive divider and electromagnetic unit. Because its structure in simple and many functions, they are widely used in the power system. Through test of CVT and disassembly inspection, it is proved that the main cause of lots of faults for the capacitive voltage transformer is the selection of raw material and manufacturing process. The paper mainly focuses on the working principle of the capacitor voltage transformers, analyzes the common faults of the capacitive voltage transformer secondary voltage. Finally, the suggestions for operation, maintenance and production of capacitor vohage transformers have been proposed.
胡伟涛, 岳啸鸣, 祝晓辉, 闫佳文. 电容式电压互感器二次电压异常的检测方法及处理[J]. 电气技术, 2015, 16(8): 99-102.
Hu Weitao, Yue Xiaoming, Zhu Xiaohui, Yan Jiawen. Analysis and Treatment on Abnormal Secondary Voltage of Capacitor Voltage Transformer. Electrical Engineering, 2015, 16(8): 99-102.