ZW7-40.5 Outdoor High Voltage Vacuum Circuit Breaker

Overview

ZW7-40.5 series outdoor high-voltage vacuum circuit breakers (hereinafter referred to as "circuit breakers") are used in three-phase power systems with AC 5OHz and rated voltage of 40.5iV, for dividing and combining load current, overload current and short-circuit current.

Model meanin

Environmental conditions

1. Surrounding air temperature: upper limit +40°C, lower limit -30°C (general area), -40°C (alpine area);

2. Altitude: ≤1000m (if the altitude increases, the rated insulation level will be increased accordingly);

3. Wind pressure: no more than 70OPa (equivalent to wind speed of 34m/s);

4. Earthquake intensity: no more than Ludu;

5. Contamination level: Ⅳ level;

6. Daily temperature difference: no more than 25℃.

Technical parameters (see table)