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GIS(Gas Insulated Switchgear)

The SRM series Gas insulated switchgear was passed the type test from National High-low Voltage Electrical Apparatus Quality Supervision and Inspection Center (NEIC). The product widely use for 10kV, 24kV Power Systems. The SRM switchgear was designed for modular usage, it can make difference group, that can suitable for lots of requirements of compact area. SRM series switch is complete sealed system, all the electric parts and switch were sealed inside the stainless cabinet. The switch equipment will not affect by surround environment, which can make sure work safety and free maintains. And the end-user can choose the extension busbar to make it complete modular design. Meanwhile, we supply the automation and intelligentialize program, that can low down the work for workers.

parameters

Technical Features

			Protection degree
SF6 gas pressure	0.4bars under 20℃(relative pressure)		SF6 Gas tank	IP67
			Fuse external shell	IP67
Anual leakage rate	≤0.25‰/year		Switch cabinet shelter	IP3X
			Bus bar
Soaking testing	Unade water of 0.3bars pressure/24 hours		Bus bar inside cubicle 400mm2 Cu
Arc testing	With arc extinguisher 25kA/1s；	Earthing bus bar of the cubicle 150mm2 Cu
	Without arc extinguisher 16kA/1s		Bolt diameter:M10
		Thickness of stainless steel gas tank 3.0 mm

Technical Information

Technical Specification
		C Module	F Module	V Module		Cb Module
Item	Unit	Load Break Switch	Switch Fuse	Vacuum Switch	Isolate/ Earhing Switch	Vacuum Circuit Breaker	Isolate/ Earhing Switch
Rated Voltage	Kv	12/24	12/24	12/24	12/24	12/24	12/24
Power Frequency Withstand Voltage	Kv	42/50	42/50	42/50	42/50	42/50	42/50
Lightning Impulse Withstand Voltage	Kv	95/125	95/125	95/125	95/125	95/125	95/125
Rated Current	A	630/630	注1 Note1	630/630		1250/630
Rated Transfer Current	A		1750
Closed Loop	A	630/630
Off Load Cable Charging	A	135/135
5% Rated Active Load Drop-out Current	A	31.5/-
Earth Faut Breaking Current	A	200/150
When earth fault,drop-out	A	115/87	注2 Note2	20/16		25/20
Current of cable charging
Short Circuit Drop-out Current	Ka		注2 Note2	50/40	50/40	63/50	63/50
關合能力 Making Capacity	Ka	63/50
Short Time Current 3s	Ka	-/20		20/16	20/16	31.5/25	31.5/25
Mechanical Life	次	5000	3000	5000	2000	10000	5000

Note：1)varies With Rated Current Value Of Fuse

2)limited By High Voltage Fuse

Overall and installation dimensions

Product Center

Indoor high voltage load switch

14/5000 Indoor vacuum circuit breaker

Outdoor vacuum circuit breaker

Outdoor high voltage load switch

Outdoor high voltage disconnector

Outdoor drop fuse

High voltage current limiting fuse series

High voltage complete set

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GIS(Gas Insulated Switchgear)