Name: ISO9001 Approved ZW7-40.5 Outdoor High Voltage Vacuum Circuit Breaker
Brand: Ghorit
Availability: InStock

Product Details

Product Name: 50hz 40.5kv 3poles high voltage ZW7 vacuum circuit breaker for outdoor

Type: Capacitor

Product Description

ZW7-40.5 series outdoor high voltage vacuum circuit breaker is three hase AC 50Hz, rated voltage is 40.5kV outdoor high-voltage electrical equipment , attached the spring operator or electromagnetic actuator can be well controlled electric opening and closing can also be Manual storage, manually open and close. Design performance meet GB1984-89 <AC high voltage circuit breakers>; national standards, and meet the IEC-56 <highvoltageAC circuit breakers> ; International Electro-technical Commission standards. ZW7-40.5 series vacuum circuit breaker is mainly used for outdoor 35kV power transmission system control and protection also applies to urban and rural power distribution networks and industrial and mining enterprises in the normal operation and short circuit protection purposes. The overall structure of the insulator pillar product type; built vacuum interrupter type on the vase, porcelain vase for the next pillar vase. For frequent operation place. And hasgood sealing, anti-aging, high pressure, no burning, no explosion, long life, convenient installation and maintenance features.

Mainly Technical parameters

Item			Units	Value
Rated voltage			KV	40.5
Rated insulation level	1min power frequency withstand voltage	Dry		95
		Wet		80
	Lighting impulse withstand voltage(peak)			185
Rated current			A	1250,1600,2000
Rated short-circuit breaking current			KA	20,25,31.5
Rated operating sequence				O-0.3s-CO-180s-CO
Rated short-circuit breaking current breaking times			times	20
Rated short- circuit closed current (peak)			KA	50,63,80
Rated peak withstand current
Rated short-time withstand current				20,25,31.5
Rated short-circuit duration			s	4
Average opening speed			ms	1.5±0.3
Average closing speed				0.6±0.3
Contact closing bounce duration			ms	≤ 5
Three phase closing and opening synchronism				≤ 2
Closing time				≤ 90
Opening time				≤ 60
Mechanism life			times	10000
Rated operating voltage and auxiliary loop rated voltage			V	DC110/220
				AC110/220
Phase loop DC resistance (without current transformer)			µ Ω	≤ 100
Permitted accumulate wear-thickness of dynamic and static contact			mm	3
Weight			kg	800

The use of environmental conditions

a) Altitude: 1000m

b) Ambient temperature: not higher than +40°C, not less than -40°C

c) Maximum weed speed is 10km/h, minimum weed speed for the rated level(132/230kv) is 3.2km/h

d) Earthquake intensity: less than eight

e) Minimum nominal creepage distance: 31mm/kv

Air pollution: Class IV