Dry-type voltage regulation soft starting device and method for multiple high-voltage motors with different powers

The invention discloses a dry-type voltage-regulating soft starting device and method for multiple high-voltage motors with different powers, and belongs to the technical field of soft starters, the dry-type voltage-regulating soft starting device comprises a soft starter main body, a mounting plate is arranged on the back of the soft starter main body, a fixing groove matched with the soft starter main body is formed in the side face of the mounting plate, and a placement groove is formed in the mounting plate; a fixing assembly is arranged in the placing groove, a wire connecting column is arranged on the top of the soft starter body, and an arrangement assembly is arranged on the wire connecting column. The fixing assembly comprises a trapezoidal table movably arranged in the containing groove, moving plates are arranged on the two sides of the trapezoidal table, limiting blocks are fixedly connected to the side faces of the moving plates, limiting grooves matched with the limiting blocks are formed in the