Short Description:
ZW7-40.5 series outdoor high-voltage vacuum circuit breaker (hereinafter referred to as "circuit breaker") is used in three-phase power systems with AC 50Hz and rated voltage of 40.5kV, as a means of breaking and closing load current, overload current, and short-circuit current.
Overview of ZW7-40.5 series outdoor high-voltage vacuum circuit breaker:
ZW7-40.5 series outdoor high-voltage vacuum circuit breaker (hereinafter referred to as "circuit breaker") is used in three-phase power systems with AC 50Hz and rated voltage of 40.5kV, as a means of breaking and closing load current, overload current, and short-circuit current.
ZW7-40.5 series outdoor high-voltage vacuum circuit breaker normal daily use environment:
1. Surrounding air temperature: upper limit+40 ℃, lower limit -30 ℃ (general areas), -40 ℃ (high-altitude areas);
2. Altitude: ≤ 1000m (if the altitude increases, the rated insulation level will correspondingly increase);
3. Wind pressure: not exceeding 700Pa (equivalent to a wind speed of 34m/s);
4. Seismic intensity: not exceeding 8 degrees;
5. Pollution level: Level IV;
6. Daily temperature difference: not exceeding 25C.