Indoor High Voltage Load Break Switch 12/24kV

FN12-12 Series Indoor High Volgate Break Switch 1 ISO9001:2000 2 12KV 50HZ 3 Safty,Perfect,Loss energy loss

Indoor High Voltage Load Break Switch 12/24kV

   

    FN12-12D and FN12-12DRSwitchgear is a rated voltage of 12kV, rated frequency 50Hz three-phase high-voltage switchgear for the division and load current, Loop current, no load transformer and cable charging current, short circuit current of the Closing, fuse may short-circuit breaking current, with equipment grounding switch load switch that can withstand short-circuit current, mainly for three-phase power s../upply ring network city distribution and industrial power equipment for load control and short circuit protection.

Using condition

a.ambient temperature -25oC-+40oC

b.elevation≤1000m

c.humidity:daily average humidity≤95%,monthly≤90%

d.the earthquake does not exceed degree 8

e.no fire,explsion,chemical errosion..

f.pollution:level 2

Main technical parameters

Serial number	Project	Unit	FN12-12/630	FNR12-12/100-31.5
1	Rated voltage	kV	12
2	Rated frequency	Hz	50
3	Rated Current	A	630	1250
4	Lightning impulse withstand voltage	kV	On the ground and 75 isolation fracture85
5	1minFrequency withstand voltage	kV	42 on the ground and white, isolated fracture48
6	Rated thermal current	kA	20(4S)
7	Rated dynamic current	kA	50
8	Rated short circuit making current (peak)	kA	50	50
9	Rated short-circuit breaking current (projected)	kA		31.5
10	Rated transfer current	kA		1.5
11	Operating Agency	KVA	1250
12	Rated cable charging current	A	10
13	Mechanical life	Times	4000
14	Fuse switches gate trigger load time	S		<0.06
15	Ground thermal current switch	kA	20(4S)
16	Grounding switch dynamic current (peak)	ka	50
17	Control circuit supply voltage

Indoor High Voltage Load Break Switch 12/24kV