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Air insulated switchgear (Ring Main Units)

XGN15 SF6 Insulated Ring Main Units is either compact or extensible metal enclosed switchgear, which takes SF6 Load Break Switch as main switch and whole cell insulated by air, it is suitable for distribution automation, with characteristics of simple structure, easy operation, reliable interlock and easy installation. The switchgear can be supplied satisfied technical program direct at different service condition and different uses' requirement. Adopting of sensor technology and newest relay protection, with the addition of advanced technical characteristics and easy erection scheme, it is completely meet the requirements of ever-changing market. XGN15 SF6 Insulated Ring Main Units takes FL( R)N36 or FL( R)N48 SF6 Load Break Switch made by Xikai as main switch, also can be installed with VS1 VCB with international highest technical level, or VSG according the requirements of users. The operation of main switch is manual or motorized, to be coupled with FTU or RTC, can meet the requirements of remote control, distant signal, remote inspection.

parameters

Technical Information

Technical Specification
Item		Unit	Load Break Switch Unit		LBS-Fuse Combination Unit	Vacuum Circuit Breaker Unit
Rated Voltage		kV	12/24		12/24	12/24
Rated Power Frequency		Hz	50/60
Rated Current	Main Busbar	A	630
Rated Current	Branch Busbar		630		(depend on rated current of fuse)	630
Power Frequency	To Earth And Between Poles	kV		42/55
Withstand Voltage 50hz 1min	Across Isolating Distance	kV		48/70
Impulse Withstand Voltage1.2/50μs	To Earth And Between Poles	kV		75/125
	across Isolating Distance	kV		85/145
	Main Circle	kA	20/3s		-	25/2s
Short Time Withstand Current	Earthing Circle	kA	20/2s		-	25/2s
Rated Peak Withstand Current		kA	62.5/50		-	63/50
Rated Short-circuit Breaking Capacity		kA		67/50
rated Transfer Current		A	-		1700	-
Rated On Load Breaking Current		A	630		-	-
rated Close Loop Breaking Current		A	630		-	630
rated Cable Charging Current		A	10		-	15
Protection Level					IP3X
Mechanism Endurance	LBS	cycles	5000		5000	10000
	ES	cycles	2000		2000	2000

Overall and installation dimensions

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Air insulated switchgear (Ring Main Units)