126kV Outdoor Self-Evolving High Voltage SF6 Circuit Breaker (LW36)

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Basic Info.

Model NO.	LW36-126
Poles Number	3
Type	Circuit Breaker
Function	Conventional Circuit Breaker
Certification	ISO9001-2000, CE, CCC
Rated Short Circuit Current Duration	4s
Control Circuit Voltage	DC 110V or 220V
Mechanical Life Time	6000 times
Rated Operating Sequence	O-0.3s-CO-180s-CO
Weight	1500Kg
Trademark	VACEM
Origin	Wenzhou, China

1.General description

This product is used to control and protect circuit in 126kV and AC 50Hz power system. It could also be used to connect circuit breaker.

2.Product feature

a. Excellent breaking performance of arc-extinguish chamber;

b. Reliable spring operating mechanism;

c. Safe and reliable operation;

d. Less maintenance;

e. High insulation level;

f. Good shock resistance and anticorrosion capacity.

3.Main technical parameter

Item	Unit	Data
Altitude	m	1000,2000,3000
Ambient temperature	ºC	-30~+40
Rated voltage	kV	72.5 126 256
Rated current	A	2500 3150
Rated frequency	Hz	50
Rated short-circuit breaking current	kA	31.5 40
Rated short circuit making current	kA	80 100
Rated short time withstand current	kA	31.5 40
Rated peak withstand current	kA	80 100
Rated power frequency withstand voltage	kV	To earth:230 fracture:230+73*(reverse pressurization)
Rated lightning impulse withstand voltage	kV	To earth:550 fracture:550+103*(reverse pressurization)
Rated short circuit current duration	s	4
Rated out-of-step breaking current	A	8 10
Line fault breaking current		90% 75% 60%
Rated cable charged making current	A	31.5
Rated operating sequence		O-0.3s-CO-180s-CO
SF6 gas pressure(20ºC gauge pressure)	Mpa	0.6
Mechanical life time	time	6000
Control circuit voltage	V	DC 110 or 220
Creepage distance	mm/kV	25 31
Weight	kg	1500