Above its starting torque of up to 5 times the rated torque, short time overload torque up to more than 4 times the rated torque of the motor to reports, the change rate is high speed motor applications, load speed is very high (generally does not permit its no-load operation). By using the external resistor in series with the series winding (or parallel), or the series winding connected in parallel to achieve speed change. AC induction motor into AC induction motor and the motor commutator. Induction motor is divided into single-phase asynchronous motors, AC and DC motors and repulsion motor. Motor speed (rotor speed) is less than the rotating magnetic field, and thus called for the asynchronous motor. It induction motor is basically the same. s = (ns-n) / ns. s for the slip, the Swiss mechanical and electrical motors offer _ liter (certified) _ liter motor is provided by the Swiss electrical and mechanical ventilation and air conditioning plant. L Rui HVAC Electrical Equipment Factory (www.dzsrxfkt.com) is an industry leader in Shandong Dezhou, fans, ventilation equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In liters Swiss electromechanical leadership with the staff warmly welcome all inquiries negotiations to create liter Swiss electromechanical better future.