LW8-40.5 Outdoor High Voltage SF6 Circuit BreakerDetailed product description：

The LW8-40.5 flash sulfur circuit breaker is an outdoor high-voltage switchgear suitable for three-phase AC 50Hz, 35kV power systems. It plays a control and protection role and can be used to switch rated current and fault current. It can also be used for frequent operation, capacitor level, and as a connecting circuit breaker. This circuit breaker is equipped with a CT14 type spring operated mechanism.

Technical parameters of LW8-40.5 outdoor high-voltage SF6 circuit breaker

serial number	Name		unit	Data
one	rated voltage		kV	forty point five
two	maximum voltage		kV	forty point five
three	Rated Absolute Edge level	Lightning impulse withstand voltage (full wave peak value)	kV	200 */215 (fracture) Note: Standardized 185 kV
		Power frequency withstand voltage (1 minute)	kV	95/118 (fracture surface)
four	rated current		A	1600/2000		1600/2000/2500/3150
five	mechanical life		time	five thousand
six	Rated pressure of SF6 (gauge pressure at 20 ℃)		MPa	zero point four zero		zero point five zero
seven	Locking pressure (gauge pressure at 20 ℃)		MPa	zero point three		zero point four zero
eight	Maximum operating environment temperature		℃	-40		-30
nine	Rated short-circuit breaking current		kA	twenty	twenty-five	twenty-five	thirty-one point five
ten	Rated short-circuit closing current (peak)		kA	fifty	sixty-three	sixty-three	eighty
eleven	Rated short-time withstand current (thermal stability current)		kA	twenty	twenty-five	twenty-five	thirty-one point five
twelve	Rated peak withstand current (dynamic stability current)		kA	fifty	sixty-three	sixty-three	eighty
thirteen	Rated out of step breaking current		kA	five	six point three	six point three	eight
fourteen	Accumulated breaking times under rated short-circuit breaking current		time	twenty
fifteen	Rated short-circuit duration		S	four
sixteen	Closing time (at rated operating voltage)		S	≤0.1
seventeen	Opening time (at rated operating voltage)		S	≤0.06
eighteen	Rated operating sequence			Min-03s - Combination and Separation -180s - combined and separated
nineteen	Rated opening and closing current of a single capacitor bank		A	four hundred
twenty	Annual gas leakage rate		%/Year	≤1
twenty-one	Moisture content of sulfur hexafluoride gas (at 20 ℃)		uL/L	≤150
twenty-two	Rated operating voltage for CT14 type spring operated mechanism			AC/DC:380/220V/110V
	Voltage of closing coil and opening coil		V	Communication: 220 380 DC: 48 110 220
	Energy storage motor voltage		V	Communication: 220 DC: 220/110
twenty-three	Weight of sulfur hexafluoride gas		Kg	eight
twenty-four	Weight of circuit breaker (including operating mechanism)		kg	one thousand and four hundred

Rated voltage 126kV	Rated current 3150A
Rated short-circuit breaking current 40kA	Rated short-circuit breaking current, breaking times 12 times
Mechanical lifespan (times) 3000 times	SF6 annual leakage rate ≤ 1%
SF6 gas weight 10kg	Net weight 1800kg

LW8-40.5 Outdoor High Voltage SF6 Circuit Breaker