首页 | 资质荣誉 | 人才招聘 | ENGLISH
FN12-12系列交流高压负荷开关
从属类别:高压系列   
◆ 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,用于分合负荷电流,闭环电流,空载变压器和电缆充电电流,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。
FN-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口LAJ-12(XRT口-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,联合开关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 cablecharging current and closing shortcircuit current.The load switch with earth switch can bear short-circuit current.
It is made up of FN12-12D load switch and S口LAJ-12(XRNT口-10)H.V current-lilnitirlg fuse box.It can break any current,load switch breaking working current and fuse box breaking short-circuit current.joinfly breaking any current between short-circuit current,meantime.fuse box make the switch off of with the striker.

◆ 适用范围 Application
FN12-12D/负荷开关FN12-12(R)D组合电器主要用三相环网或终端供电的市区配电站和工业用电设备中,作负营控制和短路保护之用。由于组合电器对变压器等电器设备的保护作用比用断路器更可靠,特别适用于环网,比幅射代电单元和箱式变电站。
It is used in the ring network city distribution and industrial equipment of 12kV and three-phase AC 50Hz to cortrol loadand short-circuit.because the switch with fuse protecting transformer etc more reliably than circuit breaker.it is especialy suitablefor ring network clouble radial distribution and package substation.
◆ 产品采用标准 Standard
a、GB3804-90《3~63kV交流高压负荷开关》;
b、GBXXXX-XX《交流高压负荷开关熔断器组合电器》(等效IEC420-1990);
C、GB1995-89《交流高压隔离开关和接地开关》。
a、GB3804-90《3~63kV AC H.V load switch》.
b、GBXXXX-XX《AC H.V load switch with fuse box》(the same IEC420-1990).
C、GB1995-89《AC H.V isolate switch and earth switch》。
◆ 正常工作环境 Service condition

A、周围空气温度不高于+40℃,不低于-25℃。
B、海拔不起过1000m。
C、相对湿度:月平均值不大于90%,日平均值不大于95%;
D、周围空气应不受腐蚀性或可燃性气体及水蒸汽体等明显污染;
E、无经常性的剧烈运动;
F、耐污秽等级:II级。
如使用条件超过上述规定,由用户与制造厂协商确定。
A.The ambient air temperature:Max.:+40℃,Min.:-25℃.
B.The altitude≤1000m.
C.The relatire humidity of air.daffy average≤90%.monthly average≤95%.
D.The ambient air should not be obviously polluted by corrosivity or the flammability gas and geam.etc.
E、Without frequent shake.
F、Enviroment degree:grade II.
If requirements are not mentioned above,users can fix them with the manufacturer.

◆ 型号及含义 Type and meaning

 

◆ 技术参数和性能见下表 Technical parameter and performances(please see the table)
序号
Number
项目
Name
单位
Unit
FN12-12D/630 FN12-120D(R)D/100
1 额定电压
Rated voltage
KV 12
2 额定频率
Rated frequency
Hz 50
3 额定电流
Rated current
A 630 100
4 雷电冲击耐受电压
Lighting impulse resisting voltage
kV 对地及相间75、隔离断85
To ground,interphase 75 isolation break 85
5 1min 工频耐受电压
1 min power frequency withstand voltage
kV 对地及相间42、隔离断48
To ground,interphase 42 isolation break 48
6 额定热稳定电流
Rated heatstability current
kA 20(2S)
7 额定动稳定电流
Rated machinestability current
kA 50
8 额定关合电流(峰值)
Rated closing current(peak)
kA 50 50
9 额定短路开断电流(予期值)
Rated shortcircuit breaking current(prospective value)
kA   31.5
10 临界开断电流时最大I2*t
Max. critical breaking current I2*t
A2S   按熔断器特征曲线
fuse box characterisitic curve
11 最小开断电流
Min. breaking current
kA   按熔断器特征曲线
fuse box characterisitic curve
12 额定转移电流
Rated transfer current
kA   1.5
13 最大开断电流(参考值)
Max. breaking current (reference value)
kA 1.8
14 开断空载变压器容量
Breaking no-load transformer capacity
kva 1250
15 额定电缆充电电流
Rated cable charging current
A 10
16 额定有功负载电流开断次数
Rated power load current breaking times
次(Times) >100
17 额定有功负载电流开关分闸时间
Switchoff time of rated power load current switch on-and off
S   >0.06
18 接地开关热稳定电流
Earth switch heat-stability current
kA 20(2S) 20(2S)
19 接地开关热稳定电流(峰值)
Earth switch heat-stability current(peak)
kA 50 50
20 电动机操作电源电压
Motor operating power valtage
V 交直流100、200
Pay110、200 direct current

 

◆ 机械特征参数 Mechanical characteristic parameter
序号
Number
项目
Name
单位
Unit
FN12-12D/630 FN12-12D(R)D/100
1 动触头总行程
Machine contact qeneral travel
Mm 200 +8
-2
2 相问中间距离(机构贮能前)
Interphase distance(before mechansim store energy)
mm 210±3
3 动触头超行程
Dynamic contact ultra travel
mm 40±2
4
辅助触头开距
Auxiliary contact distance
mm 150
5 三相分、合闸同期性
Three-phase switch on-and-off synchroneity
ms <3
6 刚分速度
Switch-off speed
m/s >2.8 >2.8
7 刚合速度
Switch-off speed
m/s >3.8
8 金属活门对导电筒距离
Distance between metal valve and conducting pipe
mm >125
9 接地开关断口距离
Earth switch fracture distance
mm >150
10 主同路电阻
Main. loop resistance
μΩ <120 <300
11 最大操作力距
Max. opertaing moment
Nm <160

注:l、测量辅助触头开距,可测量静弧头对导电简喷口端面加后24mm;
2、测量FN12—12(R)D组合电器的主回路电阻时,熔断器用阻抗可忽略不计的导电棒代替。
Note: 1. When measuring auxiliary contact distance. Add 24mm static contact to the conducting pipe.
2. When measuring FN12-12(R)D main loop resistance, the fuse box can be replaced by the conducting bar ignoring its resistance.

 

◆ 结构示意和外形、安装尺寸图 Structure.appearance and installation diagram

 

◆结构示意和外形、安装尺寸图 Structure.appearance and installation diagram

 

◆结构示意和外形、安装尺寸图 Structure.appearance and installation diagram