Shaanxi Longxiang Electrical Co., Ltd. is one of the most reliable manufacturers and suppliers of zw32-12 outdoor high voltage vacuum circuit breaker in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Welcome to buy premium zw32-12 outdoor high voltage vacuum circuit breaker made in China here from our factory.
General Description
ZW32-12 outdoor high voltage vacuum circuit breaker is three-phase AC,50(60) Hz outdoor power distribution equipment with the rated voltage of 12kV. It is mainly used to break and close the load current and short circuit current in the electric power system.
It fits to be used to protect and control the circuit in substation, mining and industrial enterprises. It also can be used in the frequently operation places such as the rural power network. The product is accordance with GB1984-2003 standard.
Product Features
The circuit breaker has the characteristics of small volume, light weight,
anti-condensation, free maintenance and so on. It can adapt to the harsh weather conditions and dirty environment.
The ZW32-12 VCB isolating switch combination consists of vacuum circuit breaker body and isolating switch.
Use of Enviromental Conditions
1.Ambient temperature: -30℃ to +40℃;
2.The height above sea level: ≤1000m; (besides the special requirements);
3.Relative humidity: the average humidity of a day should be no more than 95%; the average humidity of a month should be no more than 90%;
4.Saturated vapor pressure: the average pressure of a day should be no more than 2.2kPa,the average pressure of a month should be no more than 1.8kPa.
5.Earthquake intensity: not exceed 8 degrees.
6.Wind pressure: no more than 700pa (it is equivalent to wind speed of 34 m/s).
7.The air filthy should be within III degree.
8.It should be used in the places without fire, explosion, serious filth, chemical erosion and violent vibration.
Main Technical Specification
|
S.N. |
Name |
Unit |
Data |
|
|
1 |
Rated voltage |
kV |
12 |
|
|
2 |
Rated frequency |
Hz |
50/60 |
|
|
3 |
Rated current |
A |
630 |
|
|
4 |
Rated short circuit breaking current |
kA |
20 |
|
|
5 |
Rated short circuit making current |
kA |
50 |
|
|
6 |
Rated peak withstand current |
kA |
50 |
|
|
7 |
Rated short time withstand current |
kA |
20 |
|
|
8 |
Rated short–circuit duration |
s |
4 |
|
|
9 |
Rated power frequency withstand voltage |
Dry |
kV |
42/1min |
|
Wet |
kV |
34/1min |
||
|
10 |
Rated lightning impulse withstand voltage |
Between phases. phase to ground |
kV |
75 |
|
Between gaps |
kV |
85 |
||
|
11 |
Rated operating sequence |
O–0.3s–CO–180s–CO |
||
|
12 |
Breaking operations of short circuit current |
cycle |
ClassE2(50cycles) |
|
|
13 |
Mechanical endurance |
cycle |
(classM1 ) 10000 |
|
|
14 |
Operating mechanism type |
Specialized mechanism(by manual,electrical) |
||
|
15 |
Clearance between open contacts |
mm |
9 ± 1 |
|
|
16 |
Contact stroke of contacts |
mm |
2 ± 0.5 |
|
|
17 |
Simultaneity of CO operations of three poles |
ms |
≤2 |
|
|
18 |
Contact bouncing duration at closing operation |
ms |
≤2 |
|
|
19 |
Closing time |
ms |
30~60 |
|
|
20 |
Opening time |
ms |
20~40 |
|
|
21 |
Average closing speed |
m/s |
0.4~0.8 |
|
|
22 |
Average opening speed |
m/s |
1.0~1.4 |
|
|
23 |
Main circuit resistance of each pole |
μ Ω |
≤80 |
|
|
24 |
DC component |
50%(Max.) |
||
ZW32-12 Circuit Breaker Ordering Information Required
1. Circuit breaker model, name, ordering quantity;
2. Rated voltage, rated current, rated short-circuit breaking current, distance between phases and also distance between upper and lower wiring outlet;
3. Rated voltage of energy charging motor and control voltage of mechanism;
4. Optional components solution
5. The name and quantity of spare parts;
6. If the user has other special requirements (such as high altitude, extreme temperature and humidity etc.), it should be specified before ordering;
Overall Outline Drawing
Application Scenarios
10kV overhead urban & rural distribution network
Company Qualifications
Shaanxi Longxiang Electrical Co.,Ltd. holds dozens of national patents, including invention patents, utility model patents and design patents.
FAQ
Q: Can the installation type be customized?
A: Yes, the installation type can be customized to Fixed or Withdrawable
Q: What is the minimum order quantity?
A: MOQ is 1 set.
Q:What are key spare parts for VCB?
A: Vacuum interrupter, spring operating mechanism, solid-sealed pole, closing/tripping coil, charging motor, auxiliary switch, tulip contact, insulating pull rod, earthing switch, secondary terminal block etc.
Q: Do you support OEM & ODM customization?
A: Yes. Customization for enclosure color, parameters, nameplate, secondary drawing, IP class are available. English manuals, test reports and certificates can be supplied.
Q: What are the available payment terms?
A: T/T and L/C are acceptable , TT will be more appreciated. 30% T/T in advance and 70% balance before shipment.
Q: Do you have relevant test certificates?
A: We can provide type test reports, also the third-party inspection before delivery if required.
