概述Summary

FN12-12D/630-50型户内交流高压负荷开关（以下简称FN12-12D负荷开关）是额定电压为12kv，额定频率为50Hz的三相高压开关设备， 用于分合负荷开关，可以承受短路电流。 FN12-12（R）D/100-31.5型交流高压负荷开关一熔断器组合电器（以下简称FN12-12（R）D组合电器）是FN12-12D负荷开关与S□LAJ-12（XRNT□-10）高压限流式熔断器组合在一起的户内高压开关设备。它可以开断直至短路电流的任何电流；负荷开关开断工作电流，熔断器开断短路电流，联合开断工作电流与全短路电流之间的任何电流，同时熔器通过其撞击使负荷开关分闸。 It is a three phase H.V.Switch equipment of 12kv.50Hz for breaking or closing load current.no-load transformer cablw charging current and closing short-circuit current. It is made up ofFN12-12D load switch and S□LAJ-12（XRNT□-10）H.V.current-liniting fuse box.It can break any current,load swith breaking working current and fuse box.It can break any current,load swith jointly breaking any current between short-circuit current.meantime.Fuse box make the switch off with the striker