Application
ZW32-12 upper column vacuum circuit breaker is outdoor power distribution equipment with 12kV rated voltage and 50Hz three phases AC.It is mainly used to switch on and off load current,overload current and breaking current in power system.It is used for protection and control in power distribution systems of substation and industrial and mining enterprises.It also applies to rural power grids and frequently operated sites.
Characters
1. The product is fully enclosed and has good sealing performance.It has a good moisture-proof and anti-condensation performance,and is suitable for use in hot and humid area.
2. The circuit breaker can be equipped with two or three phases CT,this can output two-phase or three-phase current to intelligent controller for information analysis.
3. Switch on and off of circuit breaker can be operated manually or electrically or remotely.
4. The operating mechanism is sealed inside the switch box.This structure can effectively avoid the corrosion of the mechanism caused by the switch’s long term exposure in outdoor environment.
5. The operation mechanism is novel,simple,reliable,small in size,and the mechanical life can reach more than 10000 times.
6. Switching on and off performance are stable and reliable,with no threat of combustion and explosion,safe and maintenance-free,small size,light weight,long service life.
Main technical parameters
ZW32-12 upper column vacuum circuit breaker is outdoor power distribution equipment with 12kV rated voltage and 50Hz three phases AC.It is mainly used to switch on and off load current,overload current and breaking current in power system.It is used for protection and control in power distribution systems of substation and industrial and mining enterprises.It also applies to rural power grids and frequently operated sites.
Characters
1. The product is fully enclosed and has good sealing performance.It has a good moisture-proof and anti-condensation performance,and is suitable for use in hot and humid area.
2. The circuit breaker can be equipped with two or three phases CT,this can output two-phase or three-phase current to intelligent controller for information analysis.
3. Switch on and off of circuit breaker can be operated manually or electrically or remotely.
4. The operating mechanism is sealed inside the switch box.This structure can effectively avoid the corrosion of the mechanism caused by the switch’s long term exposure in outdoor environment.
5. The operation mechanism is novel,simple,reliable,small in size,and the mechanical life can reach more than 10000 times.
6. Switching on and off performance are stable and reliable,with no threat of combustion and explosion,safe and maintenance-free,small size,light weight,long service life.
Main technical parameters
| Name | Unit | Rated value |
| Rated voltage | kV | 12 |
| Rated current | A | 630 |
| Rated short circuit breaking current | kA | 20 |
| Rated peak value of withstand current | kA | 50 |
| Rated short circuit withstand current | kA/S | 20/4 |
| Rated short circuit closing current | kA | 50 |
| Mechanical life | Time | 10000 |
| Power frequency withstand voltage (1 min) (wet) interphase,on ground/fracture |
kV | 30 42/49 |
| Peak value of lightning impulse withstand voltage interphase,on ground/fracture |
kV | 75/85 |
| Secondary circuit (1 min) power frequency withstand voltage | V | 2000 |
