substation vacuum circuit breaker

substation vacuum circuit breaker with spring mechanism designed for distribution systems

General:

IEC standard medium voltage substation vacuum circuit breaker with spring mechanism designed for distribution systmes up to 40.5kV, 2500A.

Service Environment

a) Air temperature: Maximum temperature: +40℃; Minimum temperature:-30℃

b) IP54 protection degree

c) Altitude above sea level: Maximum installation altitude: 2000m

d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.

e) Long service life

Technical Data

Item	Unit	Data
Rated operating voltage	kV	40.5
Rated 1min power frequency withstand voltage	kV	Dry			95
		Wet			80
Lightning impulse withstand voltage (peak)	kV	185
Rated current	A	1250	1600			2000
Rated short-circuit breaking current	kA	20	25			31.5
Rated short-circuit closed current (peak)	kA	50		63			80
Rated peak withstand current	kA	50		63			80
Rated short-time withstand current	kA	20		25			31.5
Rated short-circuit duration	s	4
Rated short-circuit breaking current breaking times	times	20
Rated short-circuit closing current	A	400
Rated operating sequence		O-0.3s-CO-180s-CO
Rated operating voltage		AC/DC 110/220V
Average opening speed	ms	1.5±0.3
Average closing speed	ms	0.6±0.3
Opening time	ms	≤90
Closing time	ms	≤60
Mechanism life	Times	10000
Weight	kg	800

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