ZW37H-40.5 Outdoor AC High Voltage Vacuum Circuit BreakerDetailed product description：

ZW37h-40.5 outdoor AC high-voltage vacuum circuit breaker is an outdoor high-voltage switchgear with a rated voltage of 40.5KV and three-phase AC 50HZ. Mainly used for breaking and closing load current, overload current, and short-circuit current in power systems
Suitable for protection and control of substations, industrial and mining enterprises, as well as regional and rural power grid automation distribution networks.
Through comprehensive type testing at Beijing Electric Power Research Institute, it meets the following standards:
GB/T1984 High Voltage AC Circuit Breakers
GB/T11022 Common Technical Requirements for High Voltage Switchgear and Control Equipment
D1402 Technical Conditions for Ordering AC Voltage Circuit Breakers

characteristic
Miniature vacuum arc extinguishing chamber: maximum reliability, long working life, encapsulated in epoxy resin;
Epoxy resin encapsulation: meets environmental requirements, has been widely validated for outdoor performance, ozone and ultraviolet resistance, is sturdy, lightweight, not easily brittle, and easy to transport;
Reasonable design structure:
Epoxy resin sleeve pillar porcelain bottle, with epoxy APG casting vacuum arc chamber on the upper part and pillar porcelain bottle on the lower part, with insulation rod inside. The three-phase pillar porcelain bottles are installed together on a mechanism box, and the dynamic end of the arc extinguishing chamber is connected to the output shaft of the mechanism through the insulation rod;
Safe and reliable, easy to debug and maintain;
The insulation rod at the vacuum arc extinguishing end is connected to the output shaft of the mechanism for direct movement, which is safe, reliable, and easy to debug and maintain. It has an automated power distribution interface: it can flexibly move and is equipped with remote auxiliary contacts to meet the requirements of power distribution automation;
High parameters and high performance: The rated current reaches 2000A, and the rated short-circuit breaking current is 31.5KA.

ZW37H-40.5 Outdoor AC High Voltage Vacuum Circuit Breaker Main Technical Parameters

project		unit	parameter
rated voltage		kv	forty point five
rated current		a	630,1250,1600,2000
Rated short-circuit breaking current		ka	twenty	twenty-five	thirty-one point five
Rated short-circuit closing current (peak)		ka	fifty	sixty-three	eighty
Rated short-time withstand current		ka	twenty	twenty-five	thirty-one point five
Rated peak withstand current		ka	fifty	sixty-three	eighty
Rated short-circuit duration time		two	four
Rated insulation level	1-minute power frequency withstand voltage	kv	ninety-five
	Lightning impulse withstand voltage (peak value)		one hundred and eighty-five
Rated operating sequence			o-0.3s-co-180s-co
Rated short-circuit current breaking times		time	twenty
mechanical life		time	ten thousand
Rated operating voltage		v	220(dc,ac)

Note: When the product is used at an altitude exceeding 1000M, the insulation level shall be adjusted according to the corresponding correction factor.

Appearance and installation dimensions