The product is mainly used for the protection and control of power distribution systems in substations and industrial and mining enterprises Can be used in rural power grids and frequently operated places It can cooperate with the controller to achieve measurement protection control and communication functions Meet the requirements of distribution automation systems Equipped with a knife switch with obvious disconnection points for easy and safe maintenance
Main electrical parameters of column mounted circuit breaker
Project | Unit | Parameter |
Switch model | ZW32-12 | |
Rated voltage | kV | 24 |
1min power frequency withstand voltage | kV | 42 (phase to phase ground) 48 (isolation fracture) |
Lightning impulse voltage (full wave) | kV | 75 (phase to phase ground) 85 (isolation fracture) |
Rated current | A | 630 |
Short time withstand current for 4 seconds (effective value) | kA | 20 25 |
Rated peak withstand current | kA | 50 63 |
SF6 gas leakage rate | %/year | / |
Institutional type | Spring mechanism permanent magnet mechanism | |
Overall dimensions (width * height * depth) | mm | 1120*703*750 |
