首页 | 资质荣誉 | 人才招聘 | ENGLISH
FN25-12D、FN25-12DR系列户内交流高压负荷开关及熔断器组合电器
从属类别:高压系列   
◆ 主要用途Use
FN25-12D真空负荷开关和FN25-12DR组合电器三要用于12kV三相交流50Hz环网或终端供电的市区配电站和工业用电设备中,作负荷控制和短路保护用,由于组合电器对变压器等电器设备的保护使用比断路器更可靠,特别适用于环网、双辐射供电单元和箱式变电站。
It s used in the ring network、city distribution and industrial equipment of 12kV and three-phase AC 50Hz to control load and short-cicuit.Because the switch with fuse protects transformer etc.more reliably than circuit breaker.it is especially suitable for ring network、double radial distribution and package substation.
◆ 技术参数 Technical parameter
序号
Number
项目
Name
单位
Unit
FN25—12D/
T630-20
FN25—1 2D/
T100-31.5
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 额定绝缘水平
Rated insulating level
1min工频耐受电压
1min power frequency withstand voltage
kV 灭弧室断口30:对地及相间42:隔离断口48
Arc room break30.to ground and interphase42.isolating break48
雷电冲击耐压(峰值)
Lighting impulse resisting voltage(peak)
对地及相间75、隔离断85
To ground.interphase 75、isolation break 85
5 4S热稳定电流
4S heat-stabling current
kA 20
6 额定动稳定电流(峰值)
Rated machine stabling current(peak)
50
7 额定闭环开断电流
Rated closed switch-off current
630   50
8 额定有功负载开断电流
Rated power load switch off current
A 630
9 额定电缆充电开断电流
Rated cable charging switch off current
10
10 额定转移电流
Rated transfer current
2000
11 开断空载变压器容量
Switch-0ff no-load transformer capacity
kva 1250   1.5
12 额定短路开断电流
Rated shert-circuit switch-off current
1.8 31.5
13 额定短路关合电流(峰值)
Rated shert-circuit controlly current(peak)
kA 50 80(预期值)
Prospesctive value
14 接地开关额定热稳定电流(2s)
Earth switch rated heat-stabling current(2S)

20
15 接地开关额定动稳定电流(峰值)
Earth switch rated machine stabling current(peak)
50
16 分合闸操作电源额定电压
on-and-off operating power rated voltage
V DC220,110 AC220,110
17 机械寿命(负倚开关/接地开关)
Mechanical life(load switch/earth switch)
次(Times) 10000/2000

 

◆ 外形图 Appearance diagram

 

 

 

 

◆ 外形图 Appearance diagram