The textile industry has always occupied an important position in my country's national economy. The output of cotton, yarn, cotton cloth, woolen fabrics, textiles, chemical fibers, clothing, etc. ranks among the top in the world. Due to the particularity of the textile industry, general equipment runs 24 hours a day all year round, consuming The power consumption is very high, and the power consumption of the textile industry accounts for about 70% of the power consumption of enterprises. Using earth permanent magnet motors to replace asynchronous motors will be a direct and effective way for enterprises to reduce power consumption.
Why choose a earth permanent magnet motor and what are its benefits?
1. The earth permanent magnet motor is started by frequency conversion, which is helpful to reduce the impact on the spinning frame when the motor is started, and greatly reduces the end breakage rate;
2. The speed of the original asynchronous motor is 1440rpm, while the earth permanent magnet motor has a synchronous speed of 1500rpm, which increases the spindle speed by 60rpm and increases the output by about 4%;
3. Since the earth permanent magnet motor uses RuFeB magnet material, due to its temperature resistance requirements, the temperature rise of the motor is generally designed to be relatively low. Therefore, the temperature of the motor is low during actual operation and the heat generation is reduced, resulting in a decrease in the environment in the textile workshop. Thereby greatly reducing air conditioning electricity consumption;
4. Since the earth permanent magnet motor does not draw reactive current from the power grid, the stator current of the permanent magnet motor is reduced under the same load, which enlarges the capacity of the working grid, improves grid utilization, and increases grid voltage.
The above four points mainly summarize the benefits of enterprises choosing permanent magnet motors. However, when actually selecting the motor power, attention should also be paid to the actual operating load. According to the actual operating power, the appropriate capacity should be selected, which is neither too large nor too small. If the power selection is too large, the motor efficiency cannot be fully utilized, investment costs and operating costs will be increased, and power will be wasted. Therefore, when selecting a motor, the operating load must be ensured within the rated power range in order to achieve the purpose of being economical, safe and reliable. can achieve the energy saving effect.
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