| Customization: | Available |
|---|---|
| Type: | Power |
| Structure: | Fixed Board |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Zw20-12 outdoor column high voltage vacuum circuit breaker is an outdoor high voltage switchgear with rated voltage of 12kV and three-phase AC of 50h.
It is mainly used to turn on and off the load current, overload current and short-circuit current of power system. It is suitable for protection and control of substation, industrial and mining enterprises and urban and rural distribution network, especially for places with frequent operation and automatic distribution network of regional network.
This product is matched with the controller, which can meet the requirements of distribution automation system and complete the traditional recloser function reliably and effectively. It adopts a mature box sealing structure and is filled with SF6 gas.
It has good sealing performance, so that it is not affected by the external environment.
It is a maintenance free product. The spring operating mechanism adopts direct acting chain drive and multi-stage tripping system, with high action reliability. It is a good product of column circuit breaker.
|
Electric Parameter |
||
|
Model |
ZW20-12F |
|
|
Parameter |
Unit |
Value |
|
Rated voltage |
kV |
12 |
|
Rated frequency |
Hz |
50 |
|
Rated current |
A |
630,1000,1250 |
|
Rated short-circuit breaking current |
kA |
20,25 |
|
Rated peak withstand current (peak) |
kA |
50, 63 |
|
Rated short-time withstand current (4s) |
kA |
20,25 |
|
Rated short-circuit making current (peak value) |
kA |
50,63 |
|
Mechanical life |
times |
10000 |
|
Rated current breaking times |
times |
10000 |
|
Rated short-circuit breaking current breaking times |
times |
30 |
|
Main Mechanical Parameters |
||
|
Parameter |
Unit |
Value |
|
Power frequency withstand voltage (1min): phase-to-phase, ground/fracture |
kV |
42/48 |
|
Lightning impulse withstand voltage (peak value) phase-to-phase, ground/fracture |
kV |
75/85 |
|
Secondary circuit 1min power frequency withstand voltage |
kV |
2 |
|
Net weight |
kg |
≤140(with disconnector ≤170) |
|
Contact Spacing |
mm |
9±0.5 |
|
Victory Overtravel |
mm |
3±0.5 |
|
Opening speed |
m/s |
1.2+0.2 |
|
closing speed |
m/s |
0.6±0.2 |
|
Contact closing bounce time |
ms |
≤2 |
|
Phase center distance |
mm |
135±1.5 |
|
External live air insulation distance |
mm |
240±2 |
|
External creepage ratio |
cm/kV |
3.8 |
|
Three-phase opening is not periodic |
ms |
≤2 |
|
Conductive circuit resistance of each phase |
Q |
≤150(with disconnector ≤200) |
|
Closing time |
ms |
≤45 |
|
Opening time |
ms |
≤45 |
|
Isolation fracture distance |
mm |
≥190 |
|
The contact knife just-close position is skewed |
mm |
≤2 |
|
Manual opening and closing operating torque |
N.m |
≤150 |
|
Rated power of energy storage motor |
w |
> 40 |
|
Rated voltage of energy storage motor |
V |
AC220 |
|
Rated closing operating voltage |
V |
AC220 |
|
Maximum/minimum closing operating voltage |
V |
AC264/143 |
|
Rated opening operating voltage |
V |
AC220 |
|
Maximum/minimum opening operating voltage |
V |
AC264/143 |
|
Maximum/minimum motor voltage |
V |
AC242/187 |
|
SF6 gas rated pressure (gauge pressure) |
MPa |
"0" |
The altitude does not exceed 3000m;
Ambient air temperature: -40C ~+40C; daily temperature difference: daily temperature change 25°C;
The wind speed is not more than 35m/s;
No flammable, explosion hazard, strong chemical corrosive substances (such as various acids, alkalis or thick smoke, etc.) and violent vibration places.
An Outdoor High Voltage Switchgear with Rated Voltage of 12kv and Three-Phase Ac of 50h.
Mainly Used to Turn on and Off The Load Current, Overload Current and Short-Circuit Current of Power System
Suitable for Protection and Control of Substation, Industrial and Mining Enterprises and Urban and Rural Distribution Network, Especially for Places with Frequent Operation and Automatic Distribution Network of Regional Network
Complete The Traditional Recloser Function Reliably And Effectively
Adopts A Mature Box Sealing Structure and is Filled with Sf6 Gas
Q2:How do you control the quality ?
A2:Professional QC team comply with TQM insure you the quality. Each step is in compliance to the standards,At the same time ,we will take photos or shoot video for you.
){kind=link}