概述 Overview

FN25-12D/T630-20型户内交流高压负荷开关三相交流50Hz,额定电压12KV的户内装置。适用于工矿企业配电及变电站等场合，作为电气设施的保护和控制，用于分合负荷电流，闭环电流，空载变压器和电缆充电电流。FZRN25-12DmD-31.5型户内交流高压真空负荷开关熔断器组合电器是三相交流50Hz，额定电压12KV的户内装置，适用于工矿企业配电所及变电站等场事。作负荷控制和短路保护之用。配装的接地开关，可以承受短路电流，操动机构可手动和电动，便宜于实现电力系统的三遥控要求。FZN25-12D、FZRN25-12D型负荷开关和组合电器适用于三相环网或终端供电的配电站和工业用电设备中，作负荷控制和短路保护由于组合电器对变压器等电器设备的保护作用比断路器更可靠、更经济、特别适用于环网，双幅射供电单元和箱式变电站。
FZN25-12D/T630-20 type indoor AC high voltage load switch is three-phase AC 50Hz,rated voltage of 12KV indoor unit.
Suitable for distribution and substations for industrial and mining enterprises and other occasions,act as electrical protection and control facitities for the division and the load current,closed loop current,no-load transformer and cable charging current.
FZRN25-12D/TD-31.5 type of indoor AC high voltage vacuum load switch fuse combination is a three-phase AC 50Hz, 
rated voltage of 12KV indoor devices for industrial and mining enterprises,distribution substations etc for load control and 
short circuit protection purposes.Equipped with the grounding switch it can withstand short-circuit current,the actuator can be manual and electric,convenient for the three remote power system requirements.
FZN25-12D.FZRN25- 12D load switch  and switchgear is suitable for three-phase power supply terminal ring or teminal power supply,electricity distribution stations and industrial equipment for load control and short circuit protection.Due to the combination equipment,it ismore reliable,more economical for the protection to the transformer or other electrical equipment than the circuit breaker,it is specially suitable for looped network,double radiated power supply unit and substation.