China Fast Respond Pole Mounted High Voltage AC Vacuum Load Switch, Find details about China Switchgear Operation Mechanism, Magnetic Actuator from Fast Respond Pole Mounted High Voltage AC Vacuum Load Switch
Description | Unit | Using Environment | |
Ambient air temperature | Max temperature | ºC | +50 |
Min temperature | -20 | ||
Max daily temperature difference | K | 30 | |
Altitude | m | ≤3000 | |
Solar radiation intensity | W/cm2 | 0.1 | |
Pollution class | IV | ||
Icing-thickness | mm | 10 | |
Humidity | Average value of daily relative humidity | % | ≤100 |
Average value of monthly relative humidity | ≤95 | ||
Earthquake tolerance ability | degree | ≤8 |
Rated voltage | kV | 12 |
Rated current | A | 630 |
CT parameter | meet customer's requirement | |
Rated frequency | Hz | 50 |
Rated short time (1 min) power frequency withstand voltage(to ground/fracture) | kV | 42/48 |
Rated lightning impulse withstand voltage(to ground/fracture) | kV | 75/85 |
Rated short circuit making current(peak value) | kA | 50 |
Rated short time withstand current(4s) | kA | 20 |
Rated peak value withstand current | kA | 50 |
Rated short circuit current break times | Time | 30 |
Operation mechanism | spring | |
Mechanical life of vacuum circuit breaker | Time | 10000 |
Shell protection degree | IP67 | |
Yearly leakage rate | % | <0.01 |