Detailed Product Description

Outdoor high-voltageVCB.

 

1. Application:

1) ZW7-40.5 series outdoor high-voltage vacuum circuit breaker is a kind of outdoor high voltage switch equipment with 50Hz three-phase alternating current and 40.5KV rated voltage.

2) The inserted spring operation system or electromagnetism operation system can remote control to break and close the brake by the electromotion or by hand, and storing power manually on the spot.

3) The deigned performance accord with GB1984-89, National Standard of the Alternating Current High-voltage Breaker and meet the Standard of international Electrician Committee for High-voltage Alternating Current Breaker.

4) ZW-40.5 series outdoor high-voltage vacuum breaker mainly apply to control and protect the outdoor 35KV transmission & transformion power system, protect the normal operation and short circuit in the city or village distribution power system and industry or mining enterprises.

5) The general configuration of this product is porcelain flask support: the upper porcelain flask is vacuum arc-extinguishing chamber;the lower one is support. It applies to use in frequent operation. This product has the advantages of good sealed performance, anti-aging, high-aging, high-voltage resistant, non-combustion, non-explosion, long age limit,convenience for installation and maintenance.

 

2. Technical parameter:

Item			Unit	Reference
Rated voltage			KV	40.5
Rated current			A	1600	2000
Rated short-circuit break current			KA	25	31.5
Rated short-circuit close curretn(peak value)				63	80
Rated little withstand(hot stabilization)current				25	31.5
Rated little withstand(hot stabilization)current				63	80
Rated short-circuit duration			S	4
Rated insulation level	1min industrial frequency withstand voltage	Dry	KV	95
		Wet		80
	Thunder impulse withstand voltage(Peak value)			185
Rated operation order                        Off-0.3S-on and off-180S-on and off
Rated short-circuit current break and close time			times	20
Complete break and close time(equip spring operation outfit)			ms	≤80
Mechanical life-span			times	10000
Rated operation voltage			V	220
Switching distance of the contact			mm	20 +3.0 -2.0
Contact exceed degree			mm	5±1
Bounce time			ms	≤5
Loop direct current resistance of each phase			μΩ	≤120
Circuit breaker dimensions(L×W×H)			mm	2335×2275×500
Circuit breaker machine weight			kg	1100

Dimension, mounting and more detailed product information, welcome to contact us.....