HXGN-12 series Enviromentally Gas Insulated Ring Main Unit (RMU)

HXGN口-12 Environmental Gas Insulated RMU is a complete set of distribution equipment for 12kV, three-phase, AC 50Hz, single busbar and single busbar sectionalized system. The product has a structure of a simple construction, flexible operation, reliable interlocking, easy installation etc.. for a variety of different applications, different users can provide satisfactory technical solutions. Sensing technology, the introduction of information technology, coupled with advanced technical performance, simple and flexible configuration options to meet the changing demand of the market, and apply to the requirements of grid intelligence.
The environmental gas insulated RMU for industrial and civil cable ring network and distribution network terminal project. As the acceptance and distribution of electrical energy, especially for urban residential area distribution, small secondary substation, switching station, cable branch box, box substation, industrial and mining enterprises, shopping malls, airports, subways, wind power generation, hospitals, stadiums, railways, tunnels and other places.

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HXGN-12 series Enviromentally Gas Insulated Ring Main Unit (RMU)

Electrical Products

Specifications
Technical Parameters
Dimensions

Specifications of HXGN口-12 RMU switchgear

HXGN口 -12 environmental gas insulated switchgear is also a type of ring main unit switchgear, meeting the relevant national standards, power industry standards, international standards etc. Its switch and the main electrical components for the integrated module, the conductive parts between the solid insulation package, the use of shielded cable connector to the outside, the functional unit busbar shielded bus insulation. Therefore, the use of safety greatly improved, and the operating mechanism using spring mechanism. The mechanical life of this MV GIS switchgear is more than 10,000 times. All of its operating data and equipment status can be remote monitoring and monitoring, can unattended operation. Actually, it’s a superior performance power distribution device.
The cabinet can use the following units to form a cost-effective power supply unit:
Vacuum Circuit Breaker Unit (630A, 20-25kA)
Vacuum load switch unit (630A, 20-25kA)

Product characteristics

1. Environmental protection

2. Wide range of applications

3. Maintenance-free

4. High security

5. Ease of operation

6. Clearly visible real isolated fracture

Technical Parameters of circuit breaker switchgear

No.	Item			Unit	Data
1	Rated voltage			KV	12
2	Rated frequency			HZ	50
3	Rated insulation level	1min power frequency withstand voltage	To earth, phase	KV	42
			Isolating fracture		48
		Lightning impulse withstand voltage (peak)	To earth, phase	KV	75
			Isolating fracture		85
		1 min power frequency withstand voltoge for auxiliary/ control circuit (To earth)		KV	2
4	Rated current			A	630
5	Rated short-time withstand current(effective value)	Main circuit/earth switch		KA	25/4s
		Earth connecting circuit		KA	21.7/4s
6	Rated peak withstand current	Main circuit/earth switch		KA	63
		Earth connecting circuit		KA	54.5
7	Rated short-circuit breaking current and frequency			KA/time	25/30
8	Rated short-circut making current (peak)			KA	63
9	Rated cable charging breaking current			A	25
10	Rated operation sequence of circuit breaker				O-0.3s-CO-180s-CO
11	Mechanical life	Circuit breaker/ disconnecting switch		times	1000/3000
12	Potection degree	Sealed box			IP67
		Switchgear housing			IP4X
13	Gas pressure	Gas lowest functional level (20℃, gage pressure)		Mpa	0.02
		Gas lowest functional level (20℃, gage pressure)		Mpa	0
14	Sealing performance	Annual leakage rate		%/Year	≤0.05