ZW20-12(F) Electrical Outdoor Boundary Vacuum Circuit Breaker 180kg With Porcelain Isolation Disconnector

ZW20-12(F) Electrical Outdoor Boundary Vacuum Circuit Breaker 180kg With Porcelain Isolation Disconnector

Product Description:

 
The ZW20-12(F) Outdoor Vacuum Circuit Breaker is a versatile and intelligent device that combines the functions of a vacuum breaker, vacuum load switch, recloser, and sectionalizer. It is designed for use in 10kV and 13kV distribution networks, specifically in city and rural power grids.
The main components of the ZW20-12(F) circuit breaker include a vacuum breaker, CH-40 controller, and an external voltage transformer. The vacuum breaker is responsible for interrupting and making electrical circuits, while the CH-40 controller provides intelligent protection and control functions. The external voltage transformer helps in accurate voltage measurement for control and monitoring purposes.
 
 
 
Characteristics of the controller:

1.With 485 / 232 communication interface, or through optical fiber, wireless remote monitoring; Acceleration function after reclosing;when the switch is heavy,automatic acceleration tripping in case of permanent fault;
2.Remoteswitch,Should accelerate tripping:
3.Three reclosin / manual closing to accelerate tripping, and closing reclosing: The user sends power after repairing the line, if he forgets to remove the grounding g delay time can be adjusted;
4.The jump closing circuit adopts anti-misoperation design and has anti-jump function;
5.Zero-sequence current can distinguish between in-zone and out-of-zone faults;
6.The remote control switch is designed to prevent misoperation.
 
 
 
Application:

 
1.Disconnecting Switch and Contact Switch: The ZW20-12(F) circuit breaker can be used as a disconnecting switch or contact switch in the ring network configuration of power distribution systems. It enables the opening and closing of circuits during maintenance or fault conditions.
2.Automatic Switch Device: It serves as an automatic switch device, allowing for the implementation of load switching in the ring network configuration. This feature enhances the flexibility and efficiency of power distribution.
3.Boundary Switch: In branch lines of the power supply, the ZW20-12(F) circuit breaker can function as a boundary switch or "watchdog." It helps in monitoring and protecting the branch line against faults and abnormal conditions.
4.Recloser and Sectionalizer: The circuit breaker can operate as a recloser and sectionalizer in overhead distribution networks. It automatically restores power after temporary faults and isolates faulty sections to minimize the impact of outages.
 
 
 
Environmental conditions:

1.Altitude:2000 meters
2.Ambient temperature:outdoors -30℃~+55℃
The highest annual average temperature is 20℃
Maximum daily average temperature is 30℃
3.Relative humidity:95%(25℃)
4.Seismic capacity:ground level acceleration 0.3g
Ground vertical acceleration 0.15g
While acting for three sine waves
Safety factor 1.67
5.Seismic intensity:7degrees
6. Maximum daily temperature difference:25℃
7.Installation location:outdoor, 10kv overhead line user responsibility demarcation point
8.Grounding method:Neutral point does not touch, the arc suppression coil grounding and low resistance grounding
 
 
 
Technical Parameters:

 

Double effect of using when GW9-10 series isolator swich can be used with the vacuum circuit breakers.