WBZ-41型母差保护回路完善问题的探讨  

Integration Problem Discussion of WBZ-41 Bus Differential Protection Circuit

作　　者：韩盼合 

机构地区：[1]西宁供电公司修试所,青海西宁810003

出　　处：《青海电力》2011年第1期47-49,共3页Qinghai Electric Power

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.

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 

分 类 号：TM773[电气工程—电力系统及自动化]