HXGN  – 12 box type fixed AC metal-enclosed ring network switchgear (hereinafter referred to as “ring network cabinet/switchgear”) is suitable for power distribution systems in areas such as industrial and mining enterprises, residential areas, high-rise buildings, schools, and parks. It is used as an indoor AC three-phase 12kV, 50Hz ring network power supply unit and terminal power distribution equipment. It can disconnect or close the rated load current and transformer no-load current and can disconnect or close the overhead line, cable line, or capacitive current at a certain distance. The load switch fuse combination cabinet can disconnect the rated short-circuit current at one time. In the power system, as the protection of distribution equipment and the distribution and control of electric energy, it has a perfect “five prevention” locking function. Product Advantage 1. The characteristics and advantages of the sulfur hexafluoride SF6 ring main unit are worth considering when looking for a reliable and efficient solution for power distribution. This type of equipment is known for its high level of insulation, which ensures the safety and reliability of the electrical system. 2. Additionally, the sulfur hexafluoride SF6 ring main unit is compact in size, making it easy to install and maintain in various settings. Its modular design allows for flexibility and scalability, enabling users to customize the unit according to their specific needs. 3. Furthermore, the sulfur hexafluoride SF6  ring main unit is environmentally friendly, as it is designed to minimize greenhouse gas emissions and reduce the overall carbon footprint of the electrical system. 4. Overall, this type of SF6  ring main unit equipment offers a cost-effective and sustainable solution for power distribution, making it a popular choice among industries and utilities. Technical Parameters

No.	Item		Unit	Parameters
1	Rated voltage		kV	7.2 / 12
2	Rated Current of Main Bus		A	630
3	Rated Current	Incoming Cabinet	A	630
		Outgoing Cabinet (Combined Electrical Cabinet)	A	125 (Biggest)
4	Rated Short-Time Withstand Current		kA	20
5	Rated Peak Withstand Current		kA	31.5
6	Rated Short-Time Making Current (Peak Value)		kA	50
7	Rated Active Load Breaking Current		A	630
8	Rated Closed-Loop Breaking Current		A	630
9	Rated Cable Charging Current		A	10
10	Rated Short-Time Withstand Current of Earthing Switch		kA	20
11	Rated Peak Withstand Current of Earthing Switch		kA	50
12	Rated Short-Time Making Current Making Peak Value of Earthing Switch.		kA	50
13	Rated Breaking Current of Cable Point		A	3150
14	1min Power Frequency Withstand Voltage	Phase-Phase Vacuum Fracture	kV	42
		Isolation Fracture		48
15	Lightning Impulse Withstand Voltage	Phase-Phase Vacuum Fracture	kV	75
		Isolation Fracture		85
16	Mechanical Life Span	Vacuum Load Switch	Times	10000
		Isolation knife Earth Knife		2000
17	Load Switch	Average Closing Speed	m/s	0.6±0.2
		Average Opening Speed		1.1±0.2
		3-Phase Asynchrony		≤2
18	Fuse for the Combined Appliance	Maximum Rated Current	A	125
		Rated Short-Circuit Breaking Current	kA	31.5
19	Protection Level			IP3X

Usage: Environmental Condition 1. The altitude shall not exceed 1000 meters, and the altitude under special use conditions shall not exceed 2000 meters 2. Ambient Temp: Upper limit +40˚C, The average value measured within 24h shall not exceed 35˚C, and the lowest ambient air temp -15˚C 3. Relative humidity: The Ave. value of relative humidity measured within 24h shall not exceed 95% The average value of water vapor pressure measured within 24h shall not exceed 2.2kpa The average monthly relative temperature shall not exceed 90% The average monthly water vapor pressure shall not exceed 1.8kpa 4. The surrounding air is not appreciably polluted by dust, smoke, corrosive and/or flammable gases, vapors, or salt mist. 5. When the equipment is installed, the inclination from the vertical plane should not exceed 5˚C. 6. The equipment should be installed in a place free from severe pulling and impact. 7. Note: Users can negotiate with our company for special requirements. Outline and Dimension Model No.&Definition