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xin xing 10 kv dao zha fu zhu kai guan de yan zhi
Author(s): 
Pages: 54-55
Year: Issue:  4
Journal: Electric Safety Technology

Abstract: 1 早期刀闸辅助开关存在的问题 在不少投运较早的变电站中,10 kV开关柜上的刀闸辅助开关普遍存在可靠性不高、结构复杂、使用多连杆方式、辅助接点不易接触到位等问题,并且不少辅助开关与刀闸之间的连杆直接阻挡了上端柜门的开启(上端柜门的开启是在开关运行情况下允许被打开的).投运时间较早的变电站10 kV高压室的环境恶劣,导致辅助开关老化、严重变形、使用寿命较短.早期刀闸辅助开关的触点为非真空设计,表面容易氧化,进而造成触点接触不良.
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