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BackHome > Products > High voltage switchgear

High voltage switchgearHXGN17-12(F) cubicle (fixed type) alternating-current metal-enclosed ring main unit

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HXGN17-12 (F) cubicle (fixed type) alternating-current metal-enclosed ring main unit (hereinafter referred to as ring main unit) is a new generation of HV product designed and developed independently by our company by adopting overseas advanced technologies combined with the power requirements of our country. It is applicable for three-phase distribution systems of 50Hz and rated voltage 10kV, used for electric energy receiving and distribution in factories and mine, residential districts, high-rise buildings, schools, parks and so on, also can be applied to ring network power supply and terminal power supply.
All internal components are national advanced products with excellent performances complying with relevant standards, are featured with small size, light weight, simple operation, small operation force, safe operation, convenient maintenance, reliable quality, less floor space, installation against wall is available, free of fire or explosion hazard, etc. Through data analysis and expert appraisal, the technical parameters of our products have reached international advanced level among the similar products.

● Ambient temperature: -40℃~+45℃;
● Relative humidity: daily mean not over 95%, monthly mean not over 90%;
● Altitude: not exceed 4000m;
● The installation site should be free of fire, explosive danger, serious pollution, chemical corrosion or severe vibration.

Item	Unit	Load switch
Item	Unit	ZFN21 vacuum	ZFN11-12 vacuum	FN11-10 pressure-operated
Rated voltage Max working voltage Rated frequency Rated current Rated short-time withstand current Rated short-time withstand current of ground circuit Rated peak withstand current Rated peak withstand current of ground circuit	KV KV Hz A KA/s KA/s KA KA	10 12 50 630 20/4 20/4 50 50	10 12 50 630 20/3 20/3 50 50	10 12 50 400、630、800 20/3 20/3 50 50
Rated no-load transformer breaking current Main circuit, ground circuit and rated short-circuit making current Rated short-circuit breaking current of fuse Electric life at rated current Mechanical life	KA KA KA Times Times	6000kVA transformer 50 31.5 1000 1000		1250kVA transformer 50 31.5 100 200
1min power frequency withstand voltage (effective value) To-ground/phase across the isolating distance	KV	42/48
Power frequency withstand voltage isolating distance (effective value)	KV	53
Lightning impulse withstand voltage (peak) To-ground and phase-to-phase/across the isolating distance	KV	75/85
1min power frequency withstand voltage of secondary circuit	KV	2
Rated switching current	A	3150		1300

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