Importance of motor power selection for sliding door opener

更新: 2021/01/23
摘要:

Many people don’t know the importance of the motor powe […]

Many people don’t know the importance of the motor power of the sliding door opener. The important reason is that if the motor power is selected too small, a "small horse-drawn cart" phenomenon will occur, which will cause the motor to be overloaded for a long time, and its insulation will be damaged due to heat. , Even the motor was burned. If the motor power is selected too large. There will be a "big horse-drawn cart" phenomenon, the output mechanical power can not be fully utilized, the power factor and efficiency are not high, not only detrimental to the user and the grid, but also cause waste of electrical energy. Whether it is too small or too large, it will cause dangerous accidents.
  
Finally, we talk about a calculation method of how to correctly select the motor power of the sliding door opener, which must be calculated or compared by the following P=F*V/1000 (P=calculated power KW, F=required pulling force N, working machine linear speed M/ S) For constant load continuous working mode, the required motor power P1 (kw) can be calculated as follows: P=P/n1n2 where n1 is the efficiency of the production machinery; n2 is the efficiency of the motor, that is, the transmission efficiency.
  
The power P1 calculated according to the above formula is not necessarily the same as the product power; therefore, the rated power of the selected motor should be equal to or slightly greater than the calculated power; in addition, the most commonly used method is the analogy method to select the power of the motor, the so-called analogy The method is to compare with the power of the motors used in similar production machinery.

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