Language: 熔断器 high voltage fuse fusibles de alta tensión Предохранитель высоковольтный الجهد العالي فيوز
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Indoor AC H.V .Load Switch With Fuse And Without Fuse

It s used in the ring network,city distribution and industrial equipment of l2kV 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

Indoor AC H.V .Load Break Switch

◆Use
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. 

Technology Parameter

Number Name Unit FN25—12D/
T630-20
FN25—1 2D/
T100-31.5
1 Rated voltage KV 12
2 Rated frequency Hz 50
3 Rated current A 630 100
4 Rated insulating level 1min power frequency withstand voltage kV Arc room break30.to ground and interphase42.isolating break48
Lighting impulse resisting voltage(peak) To ground.interphase 75、isolation break 85
5 4S heat-stabling current kA 20  
6 Rated machine stabling current(peak) 50  
7 Rated closed switch-off current   630   50
8 Rated power load switch off current A 630
9 Rated cable charging switch off current 10
10 Rated transfer current   2000
11 Switch-0ff no-load transformer capacity kva 1250   1.5
12 Rated shert-circuit switch-off current     1.8 31.5
13 Rated shert-circuit controlly current(peak) kA 50 80(预期值)
Prospesctive value
14 Earth switch rated heat-stabling current(2S)

 

20
15 Earth switch rated machine stabling current(peak) 50
16 on-and-off operating power rated voltage V DC220,110 AC220,110
17 Mechanical life(load switch/earth switch) 次(Times) 10000/2000

 ◆ Appearance diagram

◆ Appearance diagram