摘要
对WBZ-41型母差保护回路存在问题进行分析,通过2种方案比较,提出在931、932号刀闸机构处重新敷设二次电缆到母差保护屏,可避免引起母差保护拒动,提高了运行可靠性。
The paper makes analysis on existing problems in WBZ-41 bus differential protection circuit,through comparing two methods,it proposes a method of laying secondary cable to bus differential protection screen in 931# and 932# isolating switch,to avoid hidden trouble of inducing bus differential protection misoperation,thus greatly improves operating reliability.
出处
《青海电力》
2011年第1期47-49,共3页
Qinghai Electric Power
关键词
WBZ-41
母差保护
可靠性
直流消失
电压切换箱
母线方式开关
WBZ-41
bus differential protection
reliability
direct current disapperaring
voltage switchingbox
busbar mode switch
