High Quality Fln36 Sf6 12kv Lbs Indoor Load Break Switch High Voltage for Rmu Ring Main Unit

Product Description

Product Description FLN36/48- 12D/T630-25 indoor AC high voltage SF6 load switch and FLRN36/48- 12D/T1250-31.5 indoor AC high voltage SF6 load switch fuse combination apparatus is suitable for three-phase 50Hz ring network or terminal power supply and industrial electrical equipment, for protecting the line of 10kV Electric Power Load Control System.The load switch can be divided into load current, closed loop current, no-load transformer and cable charging current;The combined apparatus is capable of breaking any current which is reach to rated short circuit, and is suitable for the electrical equipment of the ring network unit, the box type substation and so on.The utility model is especially suitable for places such as the distribution of the urban residential areas, the small two substations, the opening and closing stations, the industrial and mining enterprises, large shopping malls, airports, subways, hospitals, stadiums, etc.
Product Parameters

Item		Unit	Data
			FLN48-12D/T630-25	FLRN48-12D/T1250-31.5
rated voltage		kv	12
Rated frequency		Hz	50
Rated current		A	630	1250
Rated active load breaking current		A	630
Rated closed loop dropout current		A	630
Rated transfer current		A		1700
Lightning impulse withstand voltage(peak)		kV	phase to earth, between phase 75, fracture 85
1 min power frequency withstand voltage		kV	phase to earth, between phase 42, fracture 48
Rated short-time withstand current(2s)		kA	25
Rated peak withstand current			63
Rated short-circuit closing current(peak)			63	80(expected)
Fuse type				S LAJ-12
Output energy of impactor		J		1+0.5
Mechanical life	Load switch	times	5000
	Earth switch		2000

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