Product Introduction

GSR-12 environmentally friendly intelligent gas insulated ring network switchgear is a green intelligent ring network switch introduced by our company with advanced environmentally friendly intelligent design concepts from Germany. equipment. This series of products uses dry gas as the insulating medium, sealing the primary main circuit of the switch cabinet in a gas box that uses advanced robot welding technology and undergoes strict helium mass spectrometry leak detection. It uses a mature and reliable vacuum arc extinguisher as the vacuum circuit breaker and The main breaking component of the load switch adopts a uniquely designed three-position isolating switch to ensure safe and reliable operation and maintenance of the distribution network.

The launch of the GSR series of environmentally friendly intelligent fully enclosed switchgear products truly fully meets the needs of customers such as State Grid and China Southern Power Grid Corporation for environmentally friendly ring main units and will lead the way. The future development trend of environmentally friendly ring main unit products.

Technical Parameters

Project		Unit	Data
Rated voltage		kV	12
Rated power frequency withstand voltage ( Phase to phase, phase to ground)		kV	42
Rated power frequency withstand voltage (fracture)		kV	48
Rated lightning impulse withstand voltage (phase to phase, phase to ground)		kV	75
Rated lightning impulse withstand voltage (fracture)		kV	85
Rated busbar current		A	630,1250
Circuit breaker parameters	Rated current	A	630,1250
	Rated short-time withstand current	kA/S	20,25/4
	Rated short-circuit opening Breaking current	kA	50,63
	Rated peak withstand current	kA	20, 25
	Rated short-circuit closing current	kA	50,63
Three-station isolation Switch parameters	Rated current	kA	630,1250,
	Rated short-time withstand current	kA/S	20,25/4
	Rated peak withstand current	kA	50,63
Load switch	Rated current	A	630
	Rated short-time resistance Current	kA/S	20/4
	Rated peak withstand current	kA	50
Mechanical life	Circuit breaker	times	10000
	load Switch	times	10000
	Isolating switch	times	5000
	Grounding switch	times	5000
Rated operating sequence of circuit breaker			O-0.3s-CO-180s-CO
Annual leakage rate		%/year	0.1
Drying air pressure (℃)		Mpa	0.02
Minimum functional normal air pressure (gauge pressure at 20℃ )		Mpa	0
Withstand pressure level		Mpa	≥0.09
Outline dimensions (widthdepthheight)		mm	4208502000
Cabinet protection Level			IP4X/2X

Product size

State Grid Standardized Dimensions	Width	Depth	Height	Height of instrument box	Cabinet combination
Busbar cabinet	460mm	770mm	1640mm	350mm	Side expansion/top expansion
Load switch cabinet	460mm	770mm	1640mm	350mm	Side expansion/top expansion
Circuit breaker cabinet	460mm	770mm	1640mm	350mm	Side expansion/top expansion
PT Cabinet	600mm	770mm	1640mm	350mm	Side expansion/top expansion
Metering cabinet	810mm	770mm	1640mm	350mm	Side expansion/top expansion
*Note: The above plans can be used to produce a total box. The total box size adopts the single plan size the number of total boxes. The maximum total box is 3 units**

Features

1

Intelligent design - basic equipment of intelligent distribution network, maintenance-free fixed circuit breakers and load switch cabinet solutions, providing solutions for the upgrading and transformation of distribution network

2

Vacuum arc extinguishing, environmentally friendly and compact structure - using dry air protection, no SF6 greenhouse gas, safe and environmentally friendly. Slight positive pressure design prevents external moisture from entering the inside of the air box.

3

Modular design - small size, compact structure, safe and reliable busbar splicing, and convenient operation and maintenance. Standardized and modular cabinet design, high production efficiency.

4

Flexible and rich solutions - The combination of solutions is flexible and changeable to meet various power distribution plans of users.

Product usage environment

Ambient temperature:

Maximum temperature +50℃

Minimum temperature -40℃

Indoor ambient humidity:

Daily average relative humidity below 95%

Monthly average relative humidity below 90%

The altitude of the installation site is 5000m and below

Note: If the operating conditions are different from the above or applied to more Harsh environments, such as high altitude, low temperature, severe pollution, etc., need to be negotiated between the user and the manufacturer when ordering.