Short Description:
ZW7 -40.5/35kV series outdoor high-voltage vacuum circuit breakers (hereinafter referred to as"circuit breakers") are used in three-phase power systems with AC 50Hz and rated voltage of 40.5KV, asthe split, combined load current, overload current and short-circuit current.
Product overview:
ZW7 -40.5/35kV series outdoor high-voltage vacuum circuit breakers (hereinafter referred to as"circuit breakers") are used in three-phase power systems with AC 50Hz and rated voltage of 40.5KV, asthe split, combined load current, overload current and short-circuit current.
Model and meaning:

Normal use conditions:
Ambient air temperature: upper limit +409C, lower limit -30°C (general area), -40C (alpine area)Altitude: ≤1000m (if the altitude increases, the rated insulation level will increase accordingly);Wind pressure: no more than 700Pa (equivalent to wind speed of 34m/s);Earthquake intensity: no more than 8 degrees;Dirty level: IV;
Maximum daily temperature difference: no more than 25°C
Main mechanical parameters:
