Name: ZW32-1224 Outdoor Ac Vacuum Circuit Breaker
No.: G-004
Addtime: 2017-06-28
Views : 4
Product Structure：
ZW32-12 series outdoor pole-mounted vacuum circuit breaker is a kind of outdoor three-phase AC power distribution equipment at 12kV and 50Hz, mainly used for closing the load current and opening overcurrent and short circuit current in the power system. It can be used as a section switch in the distribution line, branch line and ring main and as a incoming switch in rural grid, industrial and mining enterprises, residential areas, construction sites, etc.
Model Description:
Service Conditions：
Altitude: ≤1000m; if applied in special conditions, it is designed to 2000m to 4000m to meet the requirements of different altitudes.
Ambient temperature: -40℃~+40℃;
Wind speed≤35m/s;
It is placed in the places without violent vibration
Technical Data：
| 序号 | Item | Unit | Data |
| 1 | Rated Voltage | KV | 12 |
| 2 | Rated frequency | HZ | 50 |
| 3 | Rated Current | A | 630 |
| 4 | Rated short-circuit breaking current | KA | 20 |
| 5 | Rated Peak withstand current | KA | 50 |
| 6 | Rated shory-time withstand current | KA | 20 |
| 7 | Rated short-circuit making current (peak) | KA | 50 |
| 8 | Mechnical Duration | times | 1000 |
| 9 | Breaking times of rated short-circuit breaking current | times | 30 |
| 10 | power frequency withstand voltage(1min): (wet)(dry) same, earth/fracture | KV | 42/48 |
| 11 | Lightning impulse withstand voltage (peak value) same, earth/fracture | KV | 75/85 |
| 12 | secondary circuit 1min power frequency withstand voltage | KV | 2 |
