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概述Summary
ZFN21-12D/T630-20、ZFN21-12DR/T125-31.5型高压真空负荷开关及熔断器组合电器用于三相交流12kv、50Hz的配电系统中。有结构紧凑、体积小、重量轻、寿命长、具有关合开断能力强、安全可靠等优点，与熔断器配合使用（简称组合电器），可替代造价较高的断路器，且操作和维护简单方便。 It is used in three phase power distribution of AC 50Hz rated voltage 12kv,with the features of advanced design、simple operation、impact structure、smart appearace,light reliability.Equipped with the fuse,it can take the place of the high-cost circuit breaker and easy to operate and maintain.
结构特点、性能及外形安装尺寸（见图） Structure Performances Appearance Dimension(please see the picture)
ZFN21-12型负荷开关及组合电器主要由框架、隔离开关（或熔断器充当隔离开关）、真空开关管、接地开关、操作机构等组成。 本产品结构紧凑、体积小、寿命长、关合开断能力强、操作维护简便。真空开关配有电操作机构和储能弹簧，可实现快速合分操作。隔离开关、真空开关、接地开关之间互相联锁，以防止误操作。 It is made up of framework,isolating switch(fuse used isolating switch)、vacuum switch link、earth switch、operating mechanism etc. I has the features of impact structure small volume long life-time strong on-and-off ability and simple operation and maintain.It can realize fast-and-off operation by motor operating actuator and energy-storing spring.There are intrelocks between isolating switch、vacuum switch and earth switch to avoid misoperating.
订货时须说明产品的型号、名称、规格、数量、操动机构电压。 When ordering,make sure modle、name、 specification、quantity and operating mechanism voltage |
