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Compressed air load switch
FK(R)N12-12 压气式负荷开关

概述 /Overview

FKN12-12 户内高压压气式负荷开关 ( 以下简称 FKN12-12 负荷开关 ) 是额定电压为
12kV，额定频率 50Hz 的三相高压开关设备，用于分合负荷电流，闭环电流，空载变压器
和电流充电电流，关合短路电流。配装接地开关的负荷开关，可以承受短路电流。
FKRN12-12 户内高压负荷开关熔断器组合电器 ( 以上简称 FKRN12-12 组合电器 )，是
FKN12-12 负荷开关与 SKLAJ-12(XRNTC1-10) 高压限流熔断器组合在一起的户内开关设
备。它可以可靠开断直至短路电流的任何电流；负荷开关开断电流，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，同时熔断器通过其撞击器使负荷开关分
闸。
FKN12-12 indoor high pressure gas pressure load switch (hereinafter referred to as
FKN12-12 load switch) is a three-phase high voltage switchgear with rated voltage of
12kV and rated frequency of 50Hz, used to divide load current, closed loop current,
no-load transformer and current. Charging current, closing the short circuit current. A
load switch equipped with a grounding switch can withstand short-circuit current.
FKRN12-12 indoor high voltage load switch fuse combination electric appliance
(FKRN12-12 combination electric appliance for short) is an indoor switch device which
combines FKN12-12 load switch and SKLAJ-12 (XRNTC1-10) high voltage current
limiting fuse. . It can reliably break any current until the short-circuit current; the load
switch breaks the current, the fuse breaks the short-circuit current, and combines any
current between the working current and the full short-circuit current, and the fuse
makes the load switch through its striker. Open.

型号含义 /Model meaning
F K N 12 -12 D / T 630 - 20 F K R N 12 -12 D / T 125 - 31.5
额定短时耐受电流
额定短时耐受电流 Rated short-time withstand current
Rated short-time withstand current 额定电流 (A)/Rated current
额定电流 (A)/Rated current 弹簧机构 /Spring mechanism
弹簧机构 /Spring mechanism 接地开关 /Grounding switch
接地开关 /Grounding switch 额定电压 (kV)/Rated voltage
额定电压 (kV)/Rated voltage 设计序号 /Design Number
设计序号 /Design Number 户内 /Indoor
户内 /Indoor 熔断器保护 /Fuse protection
空气介质 /Air medium 空气介质 /Air medium
负荷开关 /Load switch 负荷开关 /Load switch
说明：弹簧机构分为手动操作弹簧机构，电动操作弹簧机构。
Description: The spring mechanism is divided into a manual operation spring mechanism and an electric operation spring mechanism.

使用环境 /Use environment

● 空气温度：-25℃ ~+40℃；
● 海拨高度：不超过 1000m；
● 相对湿度：日平均值不大于 95%，月平均值不大于 90%。
● 地震强度：不超过 8 级；
● 安装场所：无火灾、爆炸危险，化学腐蚀及剧烈振动的场所；
● 污秽等级：Ⅱ。
● air temperature: -25℃~ +40℃ ;
● altitude: no more than 1000m;
● relative humidity: daily average of not more than 95%, the monthly average of not more than 90%.
● earthquake intensity: no more than 8;
● installation site: no fire, explosion hazard, chemical corrosion and severe vibration of the place;
● pollution level: Ⅱ .

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