Application of High efficiency Energy saving Motor in Power Plant

High-efficiency and energy-saving motor adopts new materials, new process and optimized design to reduce the consumption of mechanical energy, electromagnetic energy and heat energy to improve the output efficiency.Compared with ordinary motors, high-efficiency and energy-saving motors can improve the efficiency by about 4%.Although this kind of new motor has been listed in China for a long time, but the national demand is relatively small, now our high efficiency motor utilization rate only below 20%, thus, strengthen people's understanding of efficient motor is crucial and necessary, efficient motor used in power plants can significantly reduce power consumption, improve electricity efficiency.

1. Overview of the high-efficiency and energy-efficient motor

1.1 Operation principle of high-efficiency and energy-saving motor

The total power consumption of the high efficiency and energy saving motor in the same time can be reduced by about 20% compared with that of the ordinary motors, and the electric energy saving is about 15%.Motor in operation mainly consume copper and iron, but efficient energy saving motor in the selection of manufacturing materials with new ferromagnetic material to replace ordinary core, at the same time choose special offline tools to improve the stator slot filling rate so that the copper wire section area increased, so that not only can effectively reduce the loss of iron and copper, but also make the motor manufacturing accuracy increased significantly, make the stray power consumption is greatly reduced.In addition, the manufacturing process and process of efficient energy-saving motor choose modern technology, which mainly choose high magnetic and low loss of high quality electrical silicon steel to make its rotor core and stator core, so high energy-saving motor in the operation process of small loss, high power factor, long use time and high stability, at the same time, new materials and process manufacturing also reduce the area and volume of efficient energy-saving motor.

1.2 Features of high-efficiency and energy-saving motor

For the application of high efficiency and energy saving motor, compared with ordinary motor has more advantages, first, its application in long-term power production can greatly reduce the cost and save most energy, can be applied to fan, water pump, compressor, high efficiency and energy saving motor can directly start and use frequency converter for speed adjustment, and the power factor between 0.85-1.0, can significantly improve the quality factor of power grid, do not need the relevant power factor compensator.At the same time, the current generated in the motor is relatively small, so it can significantly reduce the electricity consumption, significantly improve the service life, if the 55 kw efficient energy saving motor applied to electricity can save about 15% than ordinary motor, to 0.5 yuan per degree to calculate it can recover the consumption cost of replacement motor within a year.

1.3 Development status of high-efficiency and energy-saving motor

In China mainly promote high efficiency and energy-saving motors to small and medium-sized motor enterprises, in China's 1997 Kyoto Protocol for the current situation of the world are facing the huge pressure of energy conservation and emission reduction, for China, in

In 2011, China's national electricity consumption was 4,692.8 billion kilowatts. If the ordinary motor is replaced with a high-efficiency and energy-saving motor, it can save about 4%, that is, 105.1 billion kilowatts of electricity can be reduced by about 31 0,000 tons of SO2 and