ZHOU DENG-HONG, LI YUAN, XIN JIAN-WEI. High Voltage Capacitor Bank Unbalanced Current Protection of HP12/36 DC Filter at Baoji Converter Station. [J]. Power capacitor & reactive power compensation, 2010, 31(1): 19-22.
ZHOU DENG-HONG, LI YUAN, XIN JIAN-WEI. High Voltage Capacitor Bank Unbalanced Current Protection of HP12/36 DC Filter at Baoji Converter Station. [J]. Power capacitor & reactive power compensation, 2010, 31(1): 19-22. DOI: 10.14044/j.1674-1757.pcrpc.2010.01.007.
High Voltage Capacitor Bank Unbalanced Current Protection of HP12/36 DC Filter at Baoji Converter Station
The DC capacitor will not cause over-voltage due to fuse action
the protection of DC filter capacitor is different from the internal fault protection of AC filter capacitor and shunt capacitor.This article compares these two kinds of protection methods through detailed calculations of the bridge differential unbalanced current protection and differential unbalanced current protection in order to achieve more effective protection of DC capacitor bank.In case of the same total harmonic current
bridge differential unbalanced current is slightly higher than differential unbalanced current protection with slightly higher accuracy and lower costs.
关键词
直流滤波器桥差电流不平衡保护差电流不平衡保护
Keywords
DC filterbridge differential unbalanced current protectiondifferential unbalanced current protection