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Fan Motor To Ensure The Operation Of The Good
- Aug 16, 2017 -

The main reasons for the motor does not turn: winding circuit, lack of oil axis, capacitance and so on. From the maintenance of the practice of the fan point of view, the latter two kinds of failures. For not turning the fan, my maintenance step is to measure the plug, turn the motor, the amount of capacitance, and then deal with. The first step, measuring the fan running and speeding the winding. First turn the fan timer, when you hear a click, the timer is normal. If there is no click, it indicates that the timer is damaged. If there is no resistance value, it may be that the motor windings are burned open. On the string of thermal fuses of the motor, it may be open to the thermal fuse, but also open the motor to take a look, if only open, short-term heat fuse can return to normal. The gear switch is completely damaged, but the possibility is not great. The second step, check whether the axle, open the fan guard, turn the motor shaft by hand,Fan motor if the turn does not move, indicating that the motor axle serious. Remove the motor, first remove the front and rear axle and motor shaft oil, rust, and then in front and rear bush on the linoleum plus sewing machine oil, most of the fans can be troubleshooting. The third step, measuring the starting capacitor, if the motor shaft rotation is flexible, it is necessary to measure the motor fan start capacitor. First, with a multimeter R × 100Ω file, measure the motor start capacitor at both ends, the entire fan motor running, starting and speed winding winding resistance, that is, black and ** lead resistance. Active fan maintenance on the motor active fan, I was based on the actual situation, one step in place. Rather than as described above, step by step to carry out maintenance. If the user says that the fan first turns slowly and then gradually becomes faster. According to experience, the motor is generally slightly axle. The reason is that the initial lack of fan lubricants. Directly open the fan motor, in front and rear bushings on the linoleum plus enough sewing machine oil, the general can be repaired. Remote control fan, power on the removal of the fault Now the remote control fan control components are basically SCR. From the principle we can see that the thyristor is essentially equivalent to the switch thyristor breakdown equivalent to the switch on. Turn on the power of the fan, of course, turn. Such as a remote control of the use of remote control when the basic function of the remote control, but the fan is not removed after the power off the hands of the Fan motor has a clear sense of shock, and the fan buzzing, especially at night to see the fan fan Also slowly turning.

Because the fan is mostly single-phase, and direct use of single-phase power can not produce a sufficient start magnetic field, can not maintain good operation

So this motor generally have two windings, is the main winding and auxiliary winding, the main winding directly into the circuit, auxiliary winding through the capacitor after the string into the circuit. So that the auxiliary winding has an angle difference and the capacitor is the role of phase shift, so that the phase of a deviation, which is equivalent to get 2-phase power, and the phase is different,Fan motor you can start the rotor, and then the main winding to maintain the magnetic field Let the He ran, auxiliary winding to continue to promote, so that it does not stop because of external forces. To ensure the operation of the good

The size of the start capacitor is only the size of the starting speed of the fan can be changed. Do not believe you can search for the effect of the capacitor. Once the fan is activated, that is,Fan motor the capacitor once the discharge is completed only after the capacitor to cut off the role of DC. Will not be involved in the operation of the fan. Because the capacitor only charge and discharge function.

If you want to determine the fan capacitor failure, you can teach you a simple way. Open the fan switch if the fan does not turn, hand clockwise rotation of the fan if you can successfully start, then prove that the start capacitor has been breakdown.