Disconnector Sf6 Circuit Breaker

NegotiableUpdate on October 06

Model

Nature of the Manufacturer: Other

Product Category: Vacuum Circuit Breaker

Place of Origin: City, Province

Online Consult Contact Information

Overview

ZW7-40.5 outdoor high voltage vacuum circuit breaker is outdoor high voltage equipment with AC three-phase 50HZ and rated voltage 40.5kV.

Product Details

Product description

ZW7-40.5kV series outdoor H.V. VCB is an electrical appliance equipment with tri-phase AC 50Hz, rated voltage 40.5kV. It is attached to install spring operation mechanism or electromagnetism operation mechanism, can far control electrically operated opening and closing, also can manually store energy, manually opening and closing.

ZW7-40.5 vacuum circuit breaker is mainly used in outdoor 40.5kV power transformer system for control and protection, which is also suitable for normal operation and short circuit protection in the city, the township power distribution network and the industry and mining enterprise. The overall structure of this product is the porcelain insulator column type. The upper porcelain insulator is loaded with vacuum interrupter internal, while the lower porcelain insulator is the prop porcelain insulator, which is suitable for frequent operation place, and has many characteristics, such as good leak-proof quality, anti-aging, withstａnd high voltage, incombustible, non explosion, long service life, easy to install and maintain and so on.

Main technical parameter

No.	Item	Unit	Value
1	Rated voltage	kV	40.5
2	Rated current	A	2500
3	Rated frequency	Hz	50
4	1min power frequency withstａnd voltage(wet)(dry)phase to phase,phase to earth/fracture	kV	80 95/118
5	Lightning impulse withstａnd voltage(peak)phase to phase,phase to earth/fracture	kV	185/215
6	Rated short circuit breaking current	kA	31.5
7	Rated short circuit breaking times	Times	30
8	Rated peak withstａnd current(peak)	kA	80
9	Rated short-time withstａnd current/duration	kA/S	31.5/4
10	Rated short circuit making current(peak)	kA	80
11	Resistance of main circuit	μΩ	≤80
12	Mechanical life	Times	10000

Environmental conditions:

No.	Item		Unit	Value
1	Ambient temperature	Max. Temp.	ºC	+40
		Min. Temp.		-25
		The Max. Daily Temp. difference		25
2	Altitude		m	≤1000
3	Intensity of solar radiation (outdoor)		W/cm2	0.1
4	Pollution class			V
5	Radial thickness of ice		mm	10
6	Wind velocity/Wind pressure (outdoor)		m/s/Pa	34/700
7	Humidity	The average daily relative humidity	%	≤95
		The average monthly relative humidity		≤90