24kV Indoor High Voltage Load Break Switch 12/24kV

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Product Detailed

FN12-24 Series Indoor High Volgate Break Switch
1 ISO9001:2000
2 24KV 50HZ
3 Safty,Perfect,Loss energy loss

Indoor High Voltage Load Break Switch 24kV

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

Item		Unit	Parameter
Rated Voltage		[kV]	24
Power Frequency Withstand voltage 50Hz/1min	To earth and between phases	[kV]	70
	Across isolation (contacts open)		80
Impulse Withstand Voltage	To earth and between phases	[kV]	170
	Across isolation (contacts open)		190
Impulse withstand voltage to earth and between phases		Up[kV]	125
Rated current		In[A]	400-630
Breaking capacity of active circuits (cos ø 0.7) and ring circuits at 0.3 Vn		Isc[kA]	400-630
Breaking capacity of no-load transformers		Isc[kA]	25
Breaking capacity of no-load lines / cables		Isc[kA]	25
Earth fault breaking capacity		Isc[kA]	200
Cable and line-charging breaking current under earth fault condition		Isc[kA]	50
Transfer current		In[A]	800
Short time withstand current - 1 sec.		Ik[kA]	12,5-25
Short time withstand current - 3 sec.		Ik[kA]	12,5-20
Making capacity		[kA]	31,5-62,5

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