神华科技
神華科技
신화과기
Northwest Coal
2015年
5期
60-61,76
,共3页
刀闸%辅助接点%位置不对应%隐患%预控措施
刀閘%輔助接點%位置不對應%隱患%預控措施
도갑%보조접점%위치불대응%은환%예공조시
Disconnecting Link%Auxiliary Contact%Non-correspondence Location%Hidden Danger%Pre-con-trol Countermeasures
小接点关联大保护，刀闸辅助接点经常出现接触不良、粘连、转换不良、抖动等现象。变电站投入运行6a以来，220kV室外刀闸倒闸操作中，辅助接点频繁出现问题，这给设备的倒闸操作及系统的稳定运行带来影响。现根据两个案例分析刀闸辅助接点转换不良问题对系统的影响。
小接點關聯大保護，刀閘輔助接點經常齣現接觸不良、粘連、轉換不良、抖動等現象。變電站投入運行6a以來，220kV室外刀閘倒閘操作中，輔助接點頻繁齣現問題，這給設備的倒閘操作及繫統的穩定運行帶來影響。現根據兩箇案例分析刀閘輔助接點轉換不良問題對繫統的影響。
소접점관련대보호，도갑보조접점경상출현접촉불량、점련、전환불량、두동등현상。변전참투입운행6a이래，220kV실외도갑도갑조작중，보조접점빈번출현문제，저급설비적도갑조작급계통적은정운행대래영향。현근거량개안례분석도갑보조접점전환불량문제대계통적영향。
Small junction correlates large protection, disconnecting auxiliary contact appears loose contact, sticky, poor transform and shaking frequently. In outdoor disconnecting switching operation of 220kV, auxilia?ry contact appears problem repeatedly since the transformer substation was put into operation six years ago, which takes great influence on switching operation of equipment and stable operation of system. Now, analyz?ing the influence on system that caused by poor transform problems of disconnecting auxiliary contact accord?ing to two cases.
