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Mingde Electrical (Shanghai) Co., Ltd.

Circuit Breaker, Breaker, Vacuum Circuit Breaker manufacturer / supplier in China, offering Zw32 12kv Outdoor Vacuum Circuit Breaker, 17.5kv -2500A Vmd Indoor Three Phase Vcb in Switchgear, Contact Box Md/150 and so on.

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Supplier Homepage Product Circuit Breaker Zw32 12kv Outdoor Vacuum Circuit Breaker

Zw32 12kv Outdoor Vacuum Circuit Breaker

Purchase Qty.:
(Pieces)
1-99 100+
FOB Unit Price: US $2,000 US $1,260
Purchase Qty. (Pieces) FOB Unit Price
1-99 US $2,000
100+ US $1,260
Get Latest Price
Production Capacity: 22000PCS/Year Circuit Breaker
Transport Package: Wooden Case Packing (900*900*1000mm)
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: ZW32
  • Operation: Manual and Electric Type Circuit Breaker
  • Arc-extinguishing Medium: Vacuum
  • Structure: Vcb Circuit Breaker
  • Type: Circuit Breaker
  • Certification: ISO9001-2000, Ohsas 180001
  • Rated Current: 630/1250A Circuit Breaker
  • Rated Short Circuit Breaker Current: 20/25 Ka Circuit Breaker
  • Rated Short-Time Withstand Current: 20/4 Ka/S Circuit Breaker
  • Specification: OHSAS/ OHSMS 18001, ISO9001
  • HS Code: 8535210000
  • Breaking Capacity: Middle& High Voltage Circuit Breaker
  • Speed: Normal Type Circuit Breaker
  • Installation: Fixed and Handcart Type Circuit Breaker
  • Poles Number: 3
  • Function: Overcurrent Protection
  • Rated Voltage: 12/24 Kv Circuit Breaker
  • Rated Frequency: 50 Hz Circuit Breaker
  • Rated Peak Withstand Current: 50/63 Ka Circuit Breaker
  • Trademark: Mingde Circuit Breaker
  • Origin: Cixi, Ningbo Circuit Breaker
Product Description
ZW32 12KV outdoor vacuum circuit breaker
Product Overview

 

1. Summary

ZW32-24 type outdoor high voltage vacuum circuit breaker is three-phase AC,50(60)Hz outdoor power distribution equipment with the rated voltage of 24kv,Used to open and close the load current,over load current,and short circuit current in the electric power system. Also used to protect and control the circuit in substation,mining and industrial enterprises, and frequently used in the operation places such as rural power network. 

2. Using environmental condition 

A. The altitude above sea level does not over 2,000 meters; 
B. Surrounding air temperature: -40 ºC ~+40 ºC ; 
C. The wind speed is not bigger than 34m/s; 
D. The air filthy should be with in III degree
E. Installing places: Not flammable, the explosion hazard, chemistry corrode place; 
F. Does not have the regular fierce vibration

 

3. Technical parameter

 

Table 1  Circuit Breaker's Main Technical Data
   
Data
NO
Item
Unit
12kv
24kv
1
Rated voltage
kV
12
24
2
Rated frequency
Hz
50
50
3
Rated current
A
630/1250
630/1250
4
Rated short circuit breaking current 
kA
20/25
20/25
5
Rated peak withstand current 
kA
50/63
50/63
6
Rated short time withstand current/ lasting time
kA/s
20/4 ,25/4
20/4 ,25/4
7
Rated short circuit closing current(peak) 
kA
50/63
50/63
8
Rated operating sequence
 
O-0.3s-CO-180s-CO
9
Mechanical life
 
10000
10000
10
Rated short circuit breaking current breaking times
 
50
20
11
1min power frequency withstand current(wet)
kV
34/36
50/64
(dry)
kV
42/49
65/79
12
Lightning impulse withstand voltage(peak)
kV
75/85
125/145
13
Secondary circuit power frequency withstand voltage (1min)
V
2000
2000
 

Table2 Circuit Breaker's Main Mechanical Data
 
NO
Item
Unit
Data
12kv
24kv
1
Clearance between contacts
mm
9±1
12±1
2
Contact's overtravel
mm
2.5±0.5
3.5±1
3
Open speed
m/s
1.4±0.2
1.4±0.2
4
Closing speed
m/s
0.7±0.2
0.7±0.2
5
Contact closing jumping time 
ms
≤2
≤2
6
Pole center distance
mm
340±1.5
380±1.5
7
Three pole open/close non-simultaneity 
ms
≤2
≤2
8
Each pole conducting circuit resistance 
μΩ
≤70
≤70
9
Closing time
ms
25-60
25-60
10
Open time
ms
20-60
20-60
11
Motor's rated power 
w
40
40


4. Outline Dimension Drawing

Zw32 12kv Outdoor Vacuum Circuit Breaker

 Certification

Zw32 12kv Outdoor Vacuum Circuit Breaker
Factory Show 

Zw32 12kv Outdoor Vacuum Circuit Breaker

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