GSR6-12/24/40.5/T(1250-3150A) Eco-friendly Gas-insulated Metal-enclosed Switchgear (C-GIS) - Product

Product Overview

GSR6-12/24/40.5 series environmentally friendly gas-insulated metal-enclosed switchgear (C-GIS) which uses dry air or N2 as the insulation medium is developed by our company. It is a new generation of MV equipment assemblies integrating vacuum arc extinguishing technology, APG solid insulation technology, gas insulation technology and interface insulation technology. Products can be widely used in various important power distribution and transformation systems in the national economy, such as transmission and substation networks, urban power supply networks, large industrial and mining enterprises, petrochemical industry, metallurgy, urban rail transit and other fields.

The product has a modular design, and the solution can be flexibly combined according to different requirements. The products are provided with a sealed pressure system, all the HV live parts of the main circuit are sealed in the stainless-steel gas tank, which is not affected by the environment. The products have the characteristics of intelligence, reliable operation, small size and maintenance-free.

Product Features

Quality assurance

Adopt internationally advanced concepts, world-class production, testing methods, laser welding, laser cutting, helium leak detection and other equipment.

Green and high efficiency

The primary component of the product adopts a fully sealed design, which is completely sealed in a sealed gas tank welded by stainless steel plates and filled with a certain pressure of dry air (D-air) or N2 insulating medium. The protection level reaches IP67, completely avoiding the impact of the external environment and climate on the switchgear. It can operate reliably in harsh environments such as basements, plateaus, frozen soil, coastal areas and humidity, achieving maintenance-free operation.

Safe and reliable

The product can be operated manually or electrically. The operating mechanism is mature and reliable and it has completed mechanical and electrical interlocking, which can effectively prevent personal injury and equipment damage caused by mis operation.

Compact design

The product design has a compact structure. Compared with the traditional air insulated switchgear, the volume is significantly reduced and the floor area is reduced by 30%-70%, which improves space utilization and effectively reduces the overall project cost.

Technical parameters

No.	Description		Unit	Parameter
1	Rated voltage		kV	12	24	40.5
2	Rated frequency		Hz	50
3	Rated current		A	1250/2500/3150/4000		1250/2500
4	Rated Insulation level	Rated power frequency withstand voltage(phase to phase, phase to ground)	kV	42	65	95
		Rated power frequency withstand voltage(Isolated open contacts)		48	79	118
		Rated lightning impulse withstand voltage(phase to phase, phase to ground)		75	125	185
		Rated lightning impulse withstand voltage(isolated open contacts		85	145	215
		Rated power frequency withstand voltage of auxiliary circuit rated		2	2	2
5	Rated short-time withstand current		kA	25/31.5/40
6	Rated short-circuit duration		s	3
7	Rated peak withstand current		kA	63/80/100
8	Rated short-circuit breaking current		kA	25/31.5/40
9	Rated short-circuit making current(peak)		kA	63/80/100
10	Rated cable charging breaking current		A	25	31.5
11	Rated operation cycle			O-0.3s-CO-3min-CO
12	Insulation gas			Dry air or N₂
13	Mechanical life	Circuit breaker	times	10000
		Three-position disconnector		5000
14	Dry air or N₂ Rated pressure(abs,20℃)	Rated gas filling pressure(abs,20℃)	MPa	0.14
		Minimum gas filling pressure(abs,20℃)		0.12
15	Protection grade	Sealed tank		IP67
		Switchgear body		IP4X
16	Dry air annual relative leakage rate(year)		%	≤00.1
17	Rated power supply voltage of auxiliary circuit		V	DC48/110/220 AC220

Switchgear dimension

Rated voltage	Rated current	Cabinet	Width(mm)	Depth(mm)	Height(mm)
12-24kV	1250A	Input/output	600	1500	2400
		PT	1000	1500	2400
		M	600/1000	1500	2400
	2500/3150/4000A	Input/output/PT	1000	1850	2400
40.5KV	1250A	Input/output	900	2200	2400
	1250A	PT	1000	2200	2400
	2500A	Input/output/PT	1000	2200	2400