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XGN118-12 Green RMU

XGN118-12 green gas-insulated RMU is an environment-friendly product independently developed by Huade High-tech. It is applicable to the power system with rated voltage of 12kV and three-phase AC of 50Hz . It can receive and distribute network power, and implement measurement, monitoring, communication, control and protection for normal operation of the system. The product is a new generation of medium voltage switchgear integrating vacuum interrupter technology, APG solid sealing technology and gas insulation technology, complying with standards like IEC62271, GB11022, GB3906 and DL/T404. Passing all type test and national new product technical appraisal, the product is widely applied to secondary distribution stations, urban power supply networks, large-scale industrial and mining enterprises, petrochemical, metallurgy, commercial areas and other places.

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Product Details

Product Details：
Key Features:
ㆍ Eco-Friendly Design: Adopts dry air as an insulating medium, eliminating the reliance on SF6 gas and reducing toxic emissions, ensuring minimal environmental impact.
ㆍ Compact and Modular: Features a miniaturized design with a compact structure, small size, and a minimal footprint, maximizing space efficiency.
ㆍ Versatile Modular Design: Incorporates a modular design enabling the random combination of different modules such as load switch unit, circuit breaker unit, metering unit, and bus PT unit.
ㆍ Flexible Configuration: Various standard unit modules combine to form a three-phase common tank fixed type ring network switch equipment. Different modules can be combined to design extensible units, offering diversified power distribution schemes.
ㆍ Robust Construction: High voltage components are securely sealed within a stainless steel tank, ensuring waterproof and dustproof performance unaffected by environmental factors or altitude. Guarantees safety and maintenance-free operation.
ㆍ Reliable Operation: Features reliable mechanical and electrical interlocking mechanisms, effectively preventing mis-operation and ensuring convenient and dependable operation.

Technical Parameters

No.	Item		Unit	Technical Parameters
				LBS Panel		CB Panel
1	Rated voltage		kV	12
2	Rated current		A	630		630
3	Rated frequency		Hz	50, 60
4	Rated short-circuit breaking current		kA	/		20,25
5	Rated short circuit making current			52,65
6	Rated short-time withstand current (effective value)		kA	20, 25
7	Rated short-circuit duration		s	4
8	Rated peak withstand current		kA	52,65
9	Closed-loop breaking current		A	630		-
10	Circuit breaker /Load switch Level			E3 level	E2
11	Annual leakage rate		%	≤0.1
12	Rated short-time power-frequency withstand voltage (effective value)	Phase to phase, phase to ground	kV	42
		Across the isolating distance	kV	48
	Rated lightning impulse withstand voltage (peak value)	Phase to phase, phase to ground	kV	75
		Across the isolating distance	kV	85
13	Partial discharge		PC	≤20
14	Insulation gas			Clean air
15	Rated gas-filling pressure (20°C, rel.)		Mpa	0.02
16	Operating mechanism			Manual and electric (spring)
17	Circuit breaker /load switch mechanism life		Time	10000
18	Disconnector /Earthing switch mechanism life		Time	3000
19	Protection level			Enclosure:IP4X/IP54
20	Loss of service continuity category			LSC2
21	Internal arc fault IAC		AFLR	25kA/1s