ZW32-12, zw32 vacuum circuit breaker, zw8 vacuum circuit breaker, out door high voltage vacuum circuit breaker
General Description
ZW32-12 Series outdoor high voltage vacuum circuit breaker is used in three phases power system of AC50Hz, voltage 10-12KV, to switch on/off loading current, it has function of protecting overloading and short circuit, meeting the requirement of control and measurement, realizing remote control and monitor and so on, it applies to protect and control distribution on system of substation, industrial enterprises, and frequent switching in rural network.
| Item | Description | Unit | Data |
| 1 | Rated voltage | KV | 12 |
| 2 | Rated insulation level | 1min withstand voltage(Dry) | KV | 42 |
| 1min withstand voltage(Wet) | 34 |
| Lightning impulse withstand voltage(peak) | 75 |
| 3 | Rated current | A | 630 400 200 |
| 4 | Rated break current on shorting | KA | 20 16 12.5 |
| 5 | Rated operating sequence | | OC-0.3s-CO-180S-CO |
| 6 | Open circuit times of rated short dropout current | Times | 30 |
| 7 | Rated short circuit making current | KA | 50 |
| 8 | Rated peak withstand current |
| 9 | Rated shorting withstand current | KA | 20 |
| 10 | Rated duration of short-circuit | S | 4 |
| 11 | Opening time(shunt trip) | Max operating voltage | ms | 15～50 |
| Rated operating voltage |
| Min. operating voltage | 30～60 |
| 12 | Closing time | ms | 25～50 |
| 13 | Total breaking time | ≤100 |
| 14 | Arcing time | ≤20 |
| 15 | Mechanical life | Times | 10,000 |
| 16 | Rated input power of energy storge motor | W | 40 |
| 17 | Rated operating voltage and secondary circuit rated voltage | V | DC220 110 24 |
| AC220 110 24 |
| 18 | Energy storage tome Under rated voltage | S | ≤10 |
| 19 | Over-current release | Rated current | A | 5 |
| The accuracy grade of tripping current | % | ±10 |
Main Technical Parameters
Outline & Installation Size
