The method of adjusting the speed of rotation or increasing the number of revolutions of an electronic motor depends on its type, as well as on the area of use of this motor. In turn, this method can consist of either changing the power setting or changing the load applied to the motor shaft.
Instructions
Step 1
Adjust the collector motor. At the same time, to increase its rotation speed, you can increase the supply voltage or reduce the load on the shaft. However, please note that the engine power should not be more than that for which it is directly designed. Also note that many collector motors, especially those with series excitation or when running without any load, will accelerate to an unacceptable high speed without reducing the supply voltage. In turn, both can threaten you with engine failure.
Step 2
Use the method of bypassing the motor field winding. It is necessary to increase the speed, and it is not allowed to resort to it in every case - this can threaten with severe overheating of the engine itself.
Step 3
Adjust the electronically controlled motor. In this case, it is necessary to use feedback, this type of engine is often very close in properties to a collector one - except that it does not allow reverse polarity reversal. If your existing electric motor has such properties, then you should try to increase its speed.
Step 4
Adjust the speed of the asynchronous electronic motor, which is powered directly from the mains. To do this, you need to change the supply voltage. However, keep in mind that this method is extremely ineffective: the dependence of rotation on voltage will be non-linear, and the coefficient of efficiency can also change greatly. For motors of a synchronous type, this method is completely unsuitable. That is why it is better to use a three-phase inverter, which will allow you to adjust the speed of not only asynchronous, but also synchronous electric motors by changing the frequency. Select a device of this type with the condition that it can provide both a decrease and a voltage when the frequency decreases, in order to reduce the inductive resistance of the windings themselves. For this, there are inverters designed specifically for single-phase motors and having magnetic shunts, as well as for two-phase capacitor motors.
