XGN15-12 Air Insulated Ring Main Unit

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The XGN15-12 ring main unit is a kind of compact and extensible metal-enclosed switchgear which uses SF6 circuit breaker as the main switch and air for insulation. It is characterized by simple structure, convenient installation, flexible operation, and reliable interlocking. It can be used in the power systems with the rated frequency of 50Hz or 60 Hz and the rated voltage of 12kV AC.

This ring main unit is widely used at the end of industrial and residential cable ring network power supply system in the airport, subway, hospital, stadium, shopping mall, industrial and mining enterprises, and many other places.

Technical Parameters

Item		Load switch	Load switch fuse
Rated voltage KV		12
Rated current A		630	125
Busbar rated current A		630
Transfer current breaking capacity A		1700
Rated short circuit making current KA		50	Depends on the fuse
Rated short-circuit breaking current KA		50	Depends on the fuse
Rated thermal current (3s) KA		20
Rated dynamic stability current KA		50
Mechanical life times	Load switch	5000
	Earthing switch	2000
Rated filling pressure MPa		0.04
Ambient temperature		-10°～ 40°
Altitude		≤1000m
Dimensions (W×H×D)		375×1850×940 500×1850×940 (Metering cabinet)

Related Names
Consumer Unit | Electrical Power Distribution Box | SF6 Insulation Switchgear

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