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 electrical elements connected include circuit breaker disconnector and earthing switch current transformer voltage transformer lightning arrester bus etc.

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在额定控制电源电压低于35%时，欠电压脱扣器应防止断路器合闸。

At rated control supply voltage less than 35% under-voltage should prevent breaker from closing.

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敬告：欠电压脱扣器必须先通电，断路器才能再扣及合闸。否则将损坏断路器！

Caution: under-voltage release must be electricity, circuit breaker can be closed, otherwise will damage circuit breaker!

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