Principles and characteristics of high-efficiency and energy-saving motors

High-efficiency and energy-saving motors refer to general-purpose and standardized motors with high power. Its power value can reach the second level of GB18613-2012 standard. So what are the principles and characteristics of high-efficiency and energy-saving motors? Next, the editor will introduce it in detail!

The principle is as follows:

High-efficiency and energy-saving motors use new motor designs, new processes and new materials to increase their output power by reducing the loss of electromagnetic energy, thermal energy and mechanical energy. Compared with standard motors, the energy saving effect of using high-efficiency motors is very significant. Under normal circumstances, the power can be increased by an average of 4%.

Features are as follows:

1. Save energy and reduce long-term operating costs. It is very suitable for use in textiles, fans, water pumps, and compressors. And relying on the feature of energy saving, the purchase cost of the motor can be recovered in one year.

2. Directly start or use frequency converter to adjust speed, which can replace asynchronous motor.

3. The earth permanent magnet high-efficiency energy-saving motor itself can save more than 15% of electric energy than ordinary motors.

4. The motor power factor is close to 1, which can improve the quality factor of the power grid without adding a power factor compensator.

5. The motor current is small, which saves power transmission and distribution capacity and extends the overall operating life of the system.

6. Energy-saving budget: Taking a 55-kilowatt motor as an example, a high-efficiency motor saves 15% more energy than an ordinary motor. The electricity cost is calculated at 0.5 yuan per kilowatt hour. The cost of replacing the motor can be recovered by saving electricity within one year of using an energy-saving motor.