机构中的辅助开关与机构主输出轴相连，在分合闸位置时发出相应的分合信号。

The auxiliary switches in mechanism connect with main output axle and give the relative signals in the open and close positions.

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在断路器的合闸位置，分闸弹簧和合闸弹簧处于储能状态，此时开关可执行分-合-分操作。

In the closed position of the circuit-breaker, the opening and closing spring are in charged state. This means the circuit-breaker is in a position to perform O-C-O switching sequences.

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如果接地开关处于合闸状态，手车向工作位置的操作必须被机械联锁锁定。

With the earthing switch closed, insertion of the withdrawable part towards the service position must be blocked after only two clockwise turns of the crank.

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