Basic Info.
Product Description
Production View
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.
Use Enviroment
1. Ambient air temperature: upper limit + 60 ºC, lower limit - 30 ºC.
2 Altitude: ≤ 3000m (if the altitude needs to be increased, the rated insulation level shall be increased accordingly):
3. Amplitude: the seismic intensity shall not exceed 8 degrees
4. The daily average value of air relative humidity shall not be greater than 95%, and the monthly average value shall not be greater than 90%;
5. Places without fire, explosion hazard, serious pollution, chemical corrosion and violent vibration.
Main Techenical Parameters
| number | Item | Unit | Data | number | Item | Unit | Data |
| 1 | Rated voltage | kV | 12 | 10 | Maximum / minimum opening operating voltage | V | AC242/187 |
| 2 | Rated frequency | Hz | 50 | 11 | Rated closing operating voltage | V | AC220 |
| 3 | Rated current | A | 630 | 12 | Maximum and minimum closing operating voltage | V | AC264/143 |
| 4 | Rated short-circuit breaking curent | kA | 25 | 13 | Rated opening operating voltage | V | AC220 |
| 5 | Peak value of rated closing current | kA | 50 | 14 | Maximum and minimum opening operating voltage | V | AC264/143 |
| 6 | peak value of rated dynamic stability current | kA | 50 | 15 | asynchronous closing | ms | ≤2 |
| 7 | 4sthermal stability current | kA | 25 | 16 | asynchronous opening | ms | ≤2 |
| 8 | Rated operating sequence | open-0.3s-close open-180s-close open | 17 | S F6 gas rated pressure (gauge pressure) | Mpa | 0.01 | |
| 9 | Rared energy storage motor voltage | V | Av220 | 18 | Rated short-circuit current breaking times | times | 30 |
| 19 | Mechanical life | times | 10000 |
Company Introduction
•FAQ
Q 1. what's the payment terms?
A. We accept LC, T/T, D/P,Western Union PayPal. If others, we can discuss.
Q 2. how's the delivery time ?
A. usually it will take about 30 days after order confirmed.
Q 3. tell me the standard of package?
A. For the small capacity, we will use carton, but for big capacity, we should use strong wooden case for protection.
Q 4.Could you offer Form A or C/O ?
A. No problem. We can prepare relative documents to origin affairs office or other office to apply for related certificates.
Q 5.Would you accept to use our logo ?
A.If good quantity, it absolute no problem to do OEM.
Q 6.We want to know month capacity.
A. It depends on which model.For example for relay type capacity , month capacity can reach near 5000pcs/month while big capacity near 2000pcs/month.
Q 7.Where is your market?
A. Our products are popular in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western European so on. Some of them are our regular customers and some of them are developing. We hope you can join us and make mutual benefit from our cooperation.
Q 8. what kind of certificates you have ?
A. Our company already achieve ISO9001, and for products, we have CE,ISO9001,SGS and so on.
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