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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: Ghorit
  • Model Number: ZW7-40.5
  • Type: Vacuum, Vacuum Circuit Breaker
  • Poles Number: 3
  • Product Name: 35kv Outdoor Circuit Breaker With CT and PT ZW7-40.5
  • Rated Voltage: 33KV ,36KV, 40.5KV
  • Rated Short-Circuit Breaking Current: 20A,25A.31.5A
  • Rated Current: 1250A,1600A,2000A
  • Frequency: 50HZ
  • Alitude: Not exceed 1000m
  • Ambient Temperature: not higher than +40 ℃ , not less than -15 ℃
  • Certificate: ISO9001
  • Mechanism Life: 1000 times

Packaging & Delivery

Packaging Details Plastic bag first, then wooden case
Delivery Time 25-30days after get the 30% deposit

Product Name: Manufacturer of ZW7 40.5kv 33kv 35kv 40.5kv outdoor high voltage vacuum circuit breaker,vcb

Type: Circuit Breaker

 

 

 

Manufacturer of ZW7 40.5kv 33kv 35kv 40.5kv outdoor high voltage vacuum circuit breaker,vcb

ZW7-40.5 series outdoor high voltage vacuum circuit breaker is three phase 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<<high-voltage AC circuit breakers>>; International Electro-technical Commission standards. ZW7-40.5 Type 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 has good sealing, anti-aging, high pressure, no burning, no explosion, long life, convenient installation and maintenance features.
 
Mainly Technical parameters 
 NO.
Item
Unit
data
 1
Rated voltage
kV
40.5
Rated insulation level
1min power frequency withstand voltage
dry
kV
95
wet
80
Lightning impulse withstand voltage (peak)
185
 3
Rated current
A
1250,1600,2000
 4
Rated short-circuit breaking current
kA
20,25,31.5
 5
Rated operating sequence
 
O-0.3s-CO-180s-CO 
 6
Rated short-circuit breaking current breaking times
times
20
 7
Rated short- circuit closed current (peak)
kA
50,63,80
 8
Rated peak withstand current
kA
50,63,80
Rated short-time withstand current
kA
20,25,31.5
 10
Rated short-circuit duration
s
4
 11
Average opening speed
ms
1.5±0.3
12 
Average closing speed
ms
0.6±0.3
 13
Contact closing bounce duration
ms
≤5
14 
Three phase closing and opening synchronism
ms
≤2
 15
Opening time
ms
≤90
 16
Closing time
ms
≤60
17 
Mechanism life
times
10000
18 
Rated operating voltage and auxiliary loop rated voltage
V
DC 110/220
AC 110/220
19 
  Phase loop DC resistance (without current transformer)
µΩ
≤100
20 
Permitted accumulate wear-thickness of dynamic and static contact 
mm
3
 21
Weight
kg
900

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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