380V-660V Autotransformer Reduced-Voltage Start Cabinet

For key equipment such as main ventilators and main drainage pumps in large-scale mines, the motor power is mostly between 90kw and 400kw. These devices are directly related to the safety of ventilation and drainage in underground mines, and the reliability and stability of the start-up equipment are of vital importance. This 380V-660V voltage autotransformer reduced-voltage starting cabinet can stably drive such high-power motors, providing a solid guarantee for the safe production of mines. ​ The main ventilator in the mine needs to operate continuously for 24 hours. If the current is too large when starting, it is easy to cause the collapse of the mine power grid and lead to the safety accident of ventilation interruption underground. This starting cabinet reduces the starting current to 42%-64% of that of direct starting through 65% and 80% voltage taps, effectively protecting the stability of the mine power grid and ensuring the normal operation of underground lighting, hoists and…