FKN12-12D series 12KV air load break switch by motor 630A|Indoor LBS|MV Load Break Switch (LBS)|Products|JGGY Electrical.com

FKN12-12D series 12KV air load break switch by motor 630A

FKN12-12D Compressed Air load break switch and FKRN12-12D combination with Fuse. They are applicable in 3 phases power distribution system of 12KV, serving to control and protect power equipment such as transformer, cable and overhead line. In particular, they are suitable for terminal transformer substation and box-type substation in grid.

Category: Switchgear & Medium Voltage LBS

Brand: JGGY Electric

Model: FKN12 FKRN12

Power: 12KV/ 630A

FOB Port: Ningbo/Shanghai

Terms of Pyament: Western Union,T/T,Paypal

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Product Description

Indoor HV air load break switch is a 3-phase AC 50Hz 12kV indoor switch equipment.

♦ Installation way: front-mounted, side mounted, flip mounted;

♦ Operating mechanism: spring operating mechanism, manual type and electrical type available (motor);

♦ Operation type: right operation and left operation;

♦ Application: indoor 12kv switchgear.

The Normal Use of The Environment:

The normal conditions of use load switch and switchgear is suitable for the following, if the actual use of the environment condition is different from the normal conditions of use, shall be borne by the user and manufacture of both parties through consultation.
The ambient temperature: 40 ℃, lower limit:: -25 ℃;
Altitude: not more than 1000M;
Relative humidity: daily average value is greater than 95%, on average less than 90%;
Saturated vapor pressure: daily average value not more than 2.2×10-3Mpa, monthly average value not more than 1.8×10-3Mpa;
Installation location: no fire, explosion, pollution, chemical corrosion and frequent violent vibration of the place;
Earthquake intensity: no more than 8;

Main Technical Parameters

NO	Item			Unit	FN12-12D/6 30-20	FN12-12RD/1 25-31.5
1	Rated voltage			kV	12	12
2	Rated frequency			Hz	50	50
3	Rated current			A	630	125
4	1min power frequency withstand voltage (Phase to earth, between poles, open contacts)		Phase-to-earth, phase-to-phase	kV	42	42
4			Isolating fracture	kV	48	48
5	Rated lightning impulse withstand voltage (Phase to earth, between poles, open contacts)		Phase-to-earth, phase-to-phase	kV	75	75
5			Isolating fracture	kV	85	85
6	Rated short time withstand current (thermal stability current)		Load break switch	kA	20
6			Earth switch	kA	20
7	Rated short circuit duration ( thermal stability time)		Load break switch	s	4
7	Rated short circuit duration ( thermal stability time)		Earth switch	s	2
8	Rated short circuit making current (peak)			kA	50
9	Rated breaking current	Active load breaking current		A	630
		Loop breaking current			630
		5% active load breaking current			31.5
		Cable charging current			10
		No-load transformer capacity		kVA	1250
10	Rated short circuit breaking current (limit current fuse)			kA		31.5
11	Rated transfer current			A		1200
12	Mechanical life			times	2000	2000
13	Striker output energy			J		1±0.5