1. Description

CXGN/FL( R ) switchgear is a new generation of CKFL-S type SF6load switch which is installed with epoxy resin enclosure inside and uses SF6 for insulation. It can work in the voltage range maximum up to 24kV. Its family includes CXGN/FL SF6load switch switchgear and CXGN/FLR SF6load switch-fuse combination switchgear.

 

2. Working Condition

2.1 Ambient air temperature: -35℃～+45℃

2.2 Ambient humidity:

----relative average daily humidity: ≤95%

----relative average daily water vapor pressure: ≤2.2kPa

----relative average monthly humidity: ≤90%

----relative average monthly water vapor pressure: ≤1.8kPa

2.3Altitude: ≤1000m

2.4 Earthquake intensity: ≤magnitude 8

2.5 Applicable in the places without violent vibration and shock, without chemical corrosive gas, without combustible gas, without vapors or salt spray.

(Exceeding above working condition is available as customized product)

 

3.Technical Data

 

Description			Unit	Load switch unit	Switch-fuse combination unit
Rated voltage			kV	12	12
Rated Frequency			Hz	50	50
Rated Insulation	1min Power frequency withstand voltage(effective value) 1min	phase-to-phase phase-to-earth	kV	42	42
		open contact	kV	48	48
	Lighting impulse withstand voltage(full wave)	phase-to-phase phase-to-earth	kV	75	75
		open contact	kV	85	85
Rated current			A	630	630
Maximum rated current of fuse			A		125
Rated short-circuit breaking current			kA		31.5(fuse)
Rated transfer current			A		1700
Duration for rated short-time			S	4
Rated short-circuit withstand current			kA	20
Rated peak withstand current			kA	50
Rated short-circuit making current			kA	50	80

 

4. Standard

----IEC60265-1998

----IEC60420-1990

----GB3906-2006

----GB3804-2004

----GB16926-1997

----GB/T11022-1999

----GB/T11023-1989

----GB/T1984, GB1985