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
ZW20-12F/T series outdoor high-voltage vacuum circuit breakers (hereinafter referred to as circuit breakers) are outdoor distribution equipment with rated voltage of 12kV and three-phase AC of 50Hz. It adopts vacuum are extinguishing and as an insulating medium, SF6 gas is an improved product of ZW20-12F post vacuum circuit breaker. The gas sealing, explosion-proof and insulation structure technology imported from Japan Toshiba VSP5 is adopted. The sealing performance of the inlet and outlet conduit has also been improved, and the overall sealing performance is excellent. The SF6 gas filled inside does not leak and is not affected by the external environment; Its spring operating mechanism is miniaturized and reliability and stability optimization, using direct chain main drive and multi-stage tripping system, the action reliability and stability are improved several times compared with the traditional spring operating mechanism in China; Axis and sleeve of main circuit the contact between them adopts the adduction and extension bracelet structure, and the contact resistance of the main circuit is small and the temperature rise is low. Therefore, ZW20-12F outdoor post vacuum circuit breaker is a maintenance-free product, which is a post break The best product in road equipment.
ZW20-12F also adds overcurrent protection and mechanism spring energy storage indication, and is equipped with aviation socket for secondary electrical connection, which is convenient to combine with intelligent controller. iine The electrical and mechanical properties make ZW20-12F outdoor post vacuum circuit breaker widely used. It is mainly used to switch on and off the load curent and short-circuit current of 10kV power system, and is suitable for transformer It is used for protection and control in distribution systems of power stations and industrial and mining enterprises, and is more suitable for places where power grids are frequently operated. This product is matched with the controller and has excellent recloserfunction, which can meet the automatic distribution Chemical system requirements.
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 |
630/1000A |
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 |
9mm |
| Rated peak withstand current |
50/63KA |
Contact stroke of contact |
2.5±0.5mm |
| Rated short-circuit breaking current breaking times |
30times |
Average opening speed |
1.2±0.2m/s |
| Rated short circuit duration |
4s |
Average closing speed |
0.6±0.2m/s |
| Rated operating voltage |
AC/DC220V |
1 min power frequency withstand voltage of secondary circuit |
2000V |
| Rated operating sequence |
point-0.3-cimbined points-180s-combined points |
Rated current cut-off times |
10000times |
| Closing bounce time |
≤2ms |
The sated pressure of SF6 gas |
0MPa |
| Rated insulation level |
1 min power frequency withstand voltage |
Dry type |
42/48 |
Weigh |
140kg |
| 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.
){kind=link}