Sf6 Load Breaker Switch in Ring Main Unit

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: SF6
• Installation: Insert
• Structure: ACB
• Model NO.: FLN36
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker
• Certification: ISO9001-2000
• Transport Package: Wooden Case
• Trademark: Farady
• Origin: Zhejiang
• HS Code: 8536500000
• Production Capacity: 2000pecies/Year

Product Description

++++General
FLBS an indoor high-voltage SF6 load switch, an switchgear with the rated voltage of 12kV/24kV, adopted with SF6 gas as an arc-extinguishing and insulation medium, including the three contactors for switching-on and switching-off and to-ground, and is characteristic in its small volume, its convenient installation and operation and its the great adaptability with surroundings. FLBS of an indoor high-voltage SF6 load switch and FLBS of SF6 load switch plus fuse combination can function to protect and control the electric equipments for power supply and transformer substations especially being suitable for ring net cabinet, cable branch cabinet and distribution switching substation.
FLBS of an indoor high-voltage SF6 load switch and FLBS load switch plus fuse combination are complied with the standards of GB3804-1990, IEC60256-1,1997, GB16926, IEC60420 etc..
++++Service environment

1. Air temperature

Maximum temperature: +40ºC; Minimum temperature:-35ºC

1. Humidity

Monthly average humidity 95%; Daily average humidity 90% .

1. Altitude above sea level

Maximum installation altitude: 2500m

1. Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
2. No frequent violent shake

++++ Main technical specifications

No	Item		Unit	Parameter
1	Rated voltage		kV	12	24
2	Rated frequency		Hz	50/60
3	Rated current		A	630/800
4	1min Power frequency withstand voltage	wet	kV	38	50
		dry	kV	48	60
5	Lightning impulse withstand voltage		kV	75	125/150
6	Rated short circuit breaking current (peak)		kA	80	63
7	Rated active load and close circuit breaking current		A	63	50
8	Rated transferring current		A	1700	1200
9	Rated short circuit making current (peak)		kA	80	63
10	Rated cable(line) charging breaking current		A	50 and 10
11	Cable charge breaking current in earthing fault		A	20	20
12	Rated withstand current (peak)		kA	80	63
13	Short time withstand current (2s)		kA	31.5	25
14	Mechanism life		times	5000	2000

Note: For short circuit breaking and peak current is based on Fuse plus combination.