The compound excited DC motor stator pole and field winding addition to, but also equipped with a rotor winding in series with series winding (which turns less). Same series winding direction of the magnetic flux generated in the magnetic flux of the primary winding motor applications, the starting torque is about 4 times the rated torque of the motor manufacturer, short-term overload torque is about 3.5 times the rated torque. Speed ??variation rate of 25% to 30% (related to the series winding). Speed ??can be adjusted by weakening the magnetic field strength. Asynchronous motor is an AC motor DC motor, frequency specific speed its load when the grid is not connected with the constant relationship. Changes also occur with the size of the load. Load torque, the lower the rotor speed. Induction motor comprises an induction motor, dual-fed asynchronous motor and AC motor commutator. Induction motor most widely used, in the case not to cause misunderstanding or confusion, generally called the induction motor is an asynchronous motor. Motor Specifications | l Rui Electric (certified) | motor supplied by the Swiss liter HVAC Electrical Equipment Factory. 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.