ZW20-12F Outdoor High Voltage Vacuum Circuit Breaker
Short 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 arc 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.
Product details
Overview
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 arc 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 flld inside does not leak and is not afeete by the external environment; Its spring operating mechanism is miniaturized and Reliability and stability optimization,using direct chain main drive and multi-stage tipping 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 outdoo post vacuum circuit breaker is a maintenance-free product, which is a post break The best product in road equipment.
Compared with ZW20-12F. ZW20-12F also adds overcurren protection and mechanism spring energy storage indication and is equipped wih aviation socket for secondary electrical cnnection, which is convenient to combine with itelligent controlle. fine The electrical and mechanical properties make ZW20-12F outdoor post vacum circuit breaker widely used. It is mainly used to switch on and off the load current 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 controler and has excelet rcloser function,which can meet the automatic distribution Chemical system requirements.
Ambient condition
1. Altitude:≤ 2000m
2. Ambient temperature:-40°C~+40°C
3. The wind speed does not exceed 34m/s (equivalent to 7oopa on the cylindrical surface)
4. Maximum Temperature Drop: no more than 25°C
5. There will be have dew under the condition of high temperature low down hastily.
Technical parameter
Name | Unit | Data |
Rated voltage | KV | 12 |
Rated power frequency | Hz | 50 |
Rated current | KA | 630/1000 |
Rated short-circuit breaking current | KA | 20/25 |
Rated withstand current(peak) | KA | 50/63 |
Rated short-time withstand current(4s) | KA | 20/25 |
Rated short-circuit making current(peak) | KA | 50/63 |
Mechanical life | Secondary | 10000 |
Rated short-circuit breaking time | Secondary | 30 |
Power frequency withstand voltage (1min) :( wet) (dry) white, right\fracture | KV | 42/48 |
Lighting impulse withstand voltage (peak) and white, right \ fracture | KV | 75/85 |
Secondary circuit 1min power frequency withstand voltage | KV | 2 |
Weight | kg | 180 |
SF6 rated gage pressure | Mpa | 0 |
