Gas-Insulated, Fixed-Type, 12 kV, Sealed Ring Main Unit (RMU) Switchgear

XGN15-12 type unit type AC metal enclosed ring network switchgear (hereinafter referred to as ring network switchgear) is a new type of high voltage electrical product designed and developed by our company after introducing excellent foreign technology and in accordance with the requirements of domestic rural power and urban network transformation. Its operation mode is divided into manual and electric. All technical performance indicators are in line with IEC62271-200:2003 and GB3906 standards.

Product Overview

The XGN15-12 type unit-type AC metal-enclosed ring network switchgear (hereinafter referred to as ring network switchgear), also professionally defined as ring main unit switchgear, is a high-performance hv ring main unit and innovative gis rmu newly developed by our company. Designed by absorbing advanced foreign technologies, it fully satisfies the application demands of domestic rural power grids and urban power network reconstruction projects. The XGN15 12 type switchgear supports both manual and electric operation modes, and all its technical performance indicators fully comply with IEC62271-200:2003 and GB3906 standards.

This 11 kV ring main unit, as a reliable hv ring main unit and compact gis rmu, is ideal for receiving and distributing electric energy in AC 50Hz, 12kV power networks. The cabinet is assembled by riveting after CNC machining, ensuring a protection grade of IP3X. The XGN15-12 ring main unit switchgear is equipped with reliable mechanical interlocking and anti-misoperation devices to guarantee operational safety. In addition, the main switch inside the cabinet adopts an SF6 switch, delivering long service life and stable operational reliability.

Type and meaning

338

Main Technical Parameters of Vacuum Circuit Breaker

No.	Name	Unit	Value
1	Rated voltage	kV	12
2	Rated frequency	Hz	50
3	Rated current of main busbar/maximum rated current off use	A	630,125
4	Rated short-time withstand current of main circuit and ground circuit	kA/s	20/3
5	Rated peak withstand current of main circuit and ground circuit	kA	50
6	Rated short-circuit closing current of main circuit and ground circuit	kA	50
7	Breaking times of load switch at full capacity	times	100
8	Breaking current of fuse	kA	31.5,40
9	Rated breaking current of closed-loop	A	630
10	Rated transfer current	A	1600
11	Mechanical life	times	2000
12	1min power frequency withstand voltage(peak value) phase-to-phase, to ground/isolation fracture	kV	42,48
13	Lightning impulse with stand voltage(peak value) phase-to-phase, to ground/isolation fracture	kV	75,85
14	Secondary circuit 1min power frequency withstand voltage	kV	2
15	Protection level		IP3X

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