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高压隔离开关和高压油开关之间为什么要加装闭锁装置? | 2012-1-24 19:38:00
高压隔离开关和高压油开关之间为什么要加装闭锁装置?
高压隔离开关只能用来接通或切断空载电路,而严禁接通和切断负荷电流,因此它只能在油开关合闸前接通或在油开关分闸后切断,如果发生误操作将会对设备,人身和系统运行产生严重危害,所以要严防误操作。为了达到这一目的,往往在油开关与隔离开关之间加装闭锁装置(电动式或机构式),闭锁装置能使油开关在合闸位置时隔离开关拉不开,而隔离开关在断开位置时油开关合不上,这样就起到防止误操作的作用。
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