Overview
ZW7-40.5 model outdoor AC vacuum breaker is control and protective equipment of power net, which is applied to AC 50Hz three-phase power system, to be used for breaking and making load current, overload current and short current.
Operating Conditions
1. Altitude: ≤ 4000 meters
2. The environment temperature: upper limit +40℃, lower limit -30℃(the lower limit is -40℃ in server cold zone)
3. Wind speed: < 34m/s
4.Temperature difference: less than 25℃
5. Pollution grade: IV class
6. Certain place without fire, explosion danger, chemical corrosion or violent vibration.
Technical Data
| Item | Unit | Parameter | ||||
| Rated voltage | kV | 40.5 | ||||
| Rated current | A | 1600 | ||||
| Rated short-circuit breaking current | kA | 20 | 25 | 31.5 | ||
| Rated short making current(peak value) | 5031.5 | 63 | 80 | |||
| Rated short-time withstand current | 20 | 25 | 31.5 | |||
| Rated peak-value withstand current | 50 | 63 | 80 | |||
| Rated operating sequence | O-0.3s-CO-180s-CO | |||||
| Rated short-circuit sustained time | s | 4 | ||||
| Rated insulation level | 1min power frequency withstand voltage | dry test | kV | 95 | ||
| wet test | 80 | |||||
| Rated lightning impulse withstand voltage (peak) | 185 | |||||
| Rated short-circuit current breaking times | Times | 12 | ||||
| Mechanical life | 10000 | |||||
| Rated operational voltage and auxiliary circuits rated voltage | V | AC/DC220 | ||||
Overall and mounting dimensions(mm)
