Generally new high efficiency motors, efficient motor compared with ordinary motor, the loss fell by an average of about 20% efficient motor manufacturer, and ultra-efficient than conventional electric motor is a motor losses fell by an average of more than 30%. Because the loss of super-efficient motors have further decreased compared with high-efficiency motors, so the long-term continuous operation, high load rate of the occasion, the energy saving effect is more obvious. To achieve from General Motors to improve the efficiency of ultra-efficient motors, in addition to increasing the amount of silicon and copper as well as other measures to reduce the size of the fan, but also must take steps in the application, the motor manufacturing process and to optimize the design of new materials, etc., in order to control costs and satisfy the restrictions motor frame size. Inverter motor drive must be used in conjunction. Now widely used internationally frequency control, frequency control because there are the following advantages: 1, high efficiency, energy saving significant; 2, can smooth stepless speed within 5 ~ 100Hz range; 3, low frequency starting torque load small impact; 4, starting current, without additional start-up equipment; 5, small size, light weight, the same mounting dimensions and Y series; 6, built-in hood efficient axial fan motors, at various speeds, both good cooling effect; 7, the application of energy-saving projects that benefit a wide range of high-efficiency motors, can be used at 50Hz or less constant torque operation at 50Hz or more can be used for constant power operation; 8, compared with electromagnetic speed motor energy consumption, speed range wide, the structure is simple, reliable, and easy maintenance. Energy efficient motors _ Dresdner Cheung (certified) _ efficient motor is provided by Zhengzhou Dresdner Motor Manufacturing Co. Cheung. Zhengzhou Dresdner Cheung Motor Manufacturing Co. (www.deshengxiangmotor.com) (www.deshengxaingmotor.com) is Zhengzhou, asynchronous motor leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. Cheung at Dresdner leadership with the staff warmly welcome all inquiries negotiations to create a better future for Dresdner Cheung.