13.5 GIS中快速暂态过电压 VFTO产生的机理 GIS中隔离开关（Disconnector Switch）和断路器 （Circuit Breaker）在操作中触头运动速度慢（大约1cm/s 数量级），断口在SF 6 气体中会发生多次的预、重击穿。
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load-disconnector switch 负荷隔离开关
switch-disconnector 隔离开关 ; 负荷开关 ; 开关切断器
Disconnector with grounding switch 接地开关断路器
enclosed load switch switch-disconnector 负荷开关
switch disconnector 负荷开关
The electrical elements connected include circuit breaker disconnector and earthing switch current transformer voltage transformer lightning arrester bus etc.
连接的电气元件有断路器、隔离开关与接地开关、电流互感器、电压互感器、避雷器、母线等。
The static contact of earthing switch is fixed on the conductive pipe of disconnector. The dynastic contact is installed on the end of earthing knife in the base.
接地开关静触头固定在隔离开关的导电管上，动触头安装在底座上的接地闸刀钢管的端部。
The device which has high real-time character improves the reliability of the switch-disconnector protection.
该装置提高了矿用开关保护的实时性和可靠性。
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