XGN口-12 Inflatable Ring High Voltage Switchgear

Jinneng electric XGN口-12 Inflatable Ring High Voltage Switchgear is a new generation of inflatable ring main unit switchgear which is a composite device encapsulated in a solid metal frame that houses different electrical devices. There are switchgears, the cabinet, circuit breakers, connection cables and other main circuits are sealed inside the gas box filled with insulating gas, the external are main busbar, cable connections, etc.

 

 

①.Gas insulation

②.Rated voltage(kV)

③.G for fixed type,K for expandable,and D for cable branch box configuration

④.Standard module code

⑤.Expansion mode:

    LT-left top expansion,RT-right top expansion LS-left side expansion,RS-side expansion

    LTRT-left and right top expansion, LTRS-left top expansion right expansion,RTLS-right top left expansion

 

 

Item			Unit	Load Switch	Combined electric unit	Breaker unit
Rated voltage			kV		12/24
Rated frequency			Hz		50/60
Reted current of main busbar			A		630,1250
Rated curret			A	630	125	630,1250
Rated short-circuit breaking current			kA		31.5	20,25/30
Rated short circuit making current (peak)			kA	50	80	50,63
Rated short-time withstand current		Main loop 4s ground loop 4s	kA	20		20,25
		Ground connection circuit 4s		17.4		17.4,21.7
Rated peak withstand current		Main loop ground loop	kA	50		50,63
		Ground connection circuit		43.5		43.5/54.6
Rated transfer current			A	1750(12kV)/1400(24kv)
Ability to break and close				E3 level		E2 level
Rated insulation level	power frequency withstand voltage	Phase-to-ground/phase-to-phase	kV	42(12kV)/65(24kV)
		Vacuum gap/isolation gap		48(12kV)/79(24kV)
	Lightning impulse withstand voltage (peak)	Phase-to-ground/phase-to-phase		75(12kV)/125(24kV)
		Vacuum gap/isolation gap		85(12kV)/145(24kV)
Auxiliary circuit 1min power frequency withstand voltage			kV	2
Rated single/back-to-back capacitor bank breaking current			A			400
Rated capacitor banks closing inrush current			kA			20(50Hz)
Mechanical life		Load switch, combination switch	Times	5000/3000	5000/3000
		Circuit breaker, isolation switch				10000/3000
SF₆ gas rated pressure (20°C relative value)		Design Level and Rated Filling Level	Mpa	0.04
		Minimum functional level		0.02
		Pressure release device operating pressure		0.14
Protection class		Sealed gas compartment		IP67
		Switchgear housing		IP4X
Sealing performance				Annual leakage rate≤0.01%

Note:above parameters are typical value,our company reserves the right of final interpretation.pls contact us

 

 

● Fully Insulated: All live parts are completely insulated for enhanced safety.

● Fully Sealed: Hermetically sealed design to prevent environmental contamination.

● Gas-Insulated: Uses SF₆ or other insulating gases for arc quenching and insulation.

● Ring Main Unit (RMU): Designed for looped power distribution networks.

● High-Voltage: Suitable for medium to high-voltage applications (e.g., 12–40.5 kV).

 

 

Use Conditions of Gas Insulated Ring Main Unit (GIS RMU):

1.Temperature: -25°C to +40°C.

2. Altitude: ≤ 1000m

3. Humidity and Pollution: Avoid high humidity and heavily polluted environments.

4. Seismic and Wind Loads: good ventilation and no serious vibration and shock.

5. Electrical Parameters: Check to make sure comply with specific voltage, current, and short-circuit current ratings.

6. Safety and Maintenance: comply with safety standards, easy for operation, and safety for maintenance.

7. Installation Requirements: Adequate space for installation and inspection, and ventilation and heat dissipation should be considered.

8.The Ring Main Unit high voltage switchgear should be maintained and inspected regularly to ensure it's under normal operation.

 

 

Full sealed and full insulated XGN-12 Insulated Ring Main Unit high voltage switchgear is widely use in following situations:

1.Urban Distribution Networks: GIS is preferred for its small footprint, flexible installation, and high operational reliability

2.Industrial Parks: Industrial parks require stable and reliable power supply, and GIS meets the need for high safety and stability of electrical equipment in these areas.

3.Transportation Hubs: Metro stations, railway stations, airports, and other transportation hubs demand continuous and reliable power supply

4.Wind and Solar Power Stations: In wind and solar power stations, GIS is used to collect and distribute power generated by the turbines or photovoltaic arrays. Its robustness against environmental conditions makes it suitable for outdoor and harsh environments.

5.Military Bases and Government Facilities: In these security-sensitive areas, the high security and sealing of GIS can protect the power system from adverse weather and potential threats.

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