ROOQ Electric Group Co.,Ltd. is a technology-oriented enterprise specializing in R&D, production, sales and services of power transformers, HV/LV switch cabinets and related products. Our factory can offer the complete range of power distribution transformer.
Fully sealed oil-immersed distribution transformer
Product Description
ZW32-12 series outdoor high-voltage vacuum circuit breakers (hereinafter referred to as"circuit breakers") are outdoor distribution switchgear with rated
voltage of 12kV and three-phase AC of 50Hz. Circuit breaker is mainly used for opening and closing Load current, overload current and short-circuit current
in power lines have overload and short-circuit protection functions, meet the requirements of control and measurement, and can also realize remote control and monitoring functions, which are widely used in It is used for control and operatiorin distribution systems of substations and industrial and mining enterprises, and is especially suitable for places requiring frequent operation.
Circuit breakers meet technical standards such as GB1984-2003, DL/T 402-2007 and IEC60056.
Main structural features
ZW32-12 outdoor high-voltage vacuum circuit breaker is mainly composed of integrated sealed pole,current transformer,operationg mechanism and box body.
This type of circuit breaker is miniaturized,and its shell is made of high-quality steel box.Current trasformers can be selected according to users' needs.
ZW32-12 outdoor high-voltage vacuum circuit breaker and matching intelligent control combination.On-off operation of switch can be realized locally,and it can also be operated by remote control through communication interface.Other information of the circuit breaker can also be transmitted to the control center,and the communication channel can be cable,optical fiber.GPRS/CDMA,GSM,etc.
Quality Inspection
The important nodes in the manufacturing process of the product will undergo professional and strict quality inspection. After the final production is completed, the company's transformer intelligent testing center will conduct a comprehensive inspection of the product to ensure that all products are qualified.
Fields of application
Power stations,compact transformer station, normal industrial factories , mines , hospitals, buildings, airports, tunnels, chemical plants, nuclear power plants etc.
Service Environment
Ambient air temperature:-30°C ~ +60°C;
Altitude:≤3000m;
The wind speed shall not exceed 34m/s;
Vibration of ground motion from the outside of switching equipment and control equipment can be ignored;
Pollution grade:Grade 4;
Storage temperature:-40°C ~ +85°C.
Mechanical parameters
| Rated voltage |
12KV |
Over-current trip rated current |
5A |
| Rated current |
630/1250A |
Mechanical life |
10000times |
| rated frequency |
50HZ or 60HZ |
Cumulative thickness of allowable wear of dynamic and static contacts |
3mm |
| Rated short circuit breaking current |
20/25KA |
Rated current of overcurrent release |
5A |
| Rated short-circuit closing current(peak value) |
50/63KA |
current ratio of current transformer |
200/5
400/5
600/5 |
| Rated short-term withstand current |
20/25KA |
Contact spacing |
9±1mm |
| Rated peak withstand current |
50/63KA |
Contact overtravel |
2.5±0.5mm |
| Rated short-circuit breaking current breaking times |
30times |
Average opening speed |
1.0±0.2m/s |
| Rated short circuit duration |
4s |
Average closing speed |
0.6±0.2m/s |
| Rated operating voltage and rated voltage of auxiliary circuit |
DC/AC110V,
AC/DC220V |
Opening time |
≤50ms |
| Rated operating sequence |
point-0.3-cimbined points-180s-combined points |
Closing time |
≤100ms |
| Closing bounce time |
≤2ms |
Different periods of three-pole closing and opening |
≤2ms |
| Rated insulation level |
1 min power frequency withstand voltage |
Dry type |
42/48 |
DC resistance of each phase loop |
≤80μΩ |
| Wet type |
34 |
| Secondary circuit to ground |
2 |
| Lightning impulse withstand voltage (peak value) |
75/85 |
Founded in 2008, registered capital of 108 million CNY, ROOQ electric group.;ltd is a high-tech enterprise specializing in the design, manufacture, sales and service of products such as power transformers, complete sets of electrical appliances, high and low voltage components, and smart city control systems.
Since its establishment, ROOQ has always adhered to product quality first, as the guide of "customer demands". It has successively served for T2 Wenzhou Airport, Ski Resort, Zhejiang National Defense Force, Hangzhou-Wenzhou Railway, Cangnan gymnasium, Country Garden Community, First People's Hospital of Songxi, Tema Road Lighting of Ghana, Presidential Palace of Burundi, Ministry of Energy of Rwanda, National Hospital of Mozambique, Refinery of CNPC in Thailand, State Television of Uzbekistan, Gold mine of Kyrgyzstan, National Data Center of Kazakhstan etc. With years of innovation and professional manufacturing experience, we have more than 20 independent intellectual property rights, and strong advantages in special product customization and EPC power engineering general contracting now. Stable quality assurance and timely delivery capabilities have won widespread trust from users around the world.
Audited Supplier 
ROOQ Electric Group Co.,Ltd. is a technology-oriented enterprise specializing in R&D, production, sales and services of power transformers, HV/LV switch cabinets and related products. Our factory can offer the complete range of power distribution transformer.
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