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Series indoor AC H.V. load switch with fuse and without fuse
CategoriesHigh Series   
#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.
# Technical 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(圓豚峙)
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) 肝(Times) 100002000

 

# Appearance diagram

 

 

 

 

# Appearance diagram