Switchgear cubicle with cabinet body with top side cover fitted with ventilator has ventilator unit, which exhausts air from switchgear cubicle area into environment or heat exchanger

摘要

A cover surface is equipped with a ventilator unit, which exhausts air from a switchgear cubicle (10) area into the environment or into a heat exchanger. The ventilator unit is equipped with an axial blower (20) having a ventilator wheel. The diameter c of the ventilator wheel is calculated c is larger then or equal to 04a (a is one of sides of a cover (11) of the cubicle).