If the air conditioner is broken, can you use the capacitor of the fan to run the motor and modify t

Of course, you can, but you must have a professional person to help you change the make-up table, otherwise the capacitor power will not reach the level, and the motor will be burned.

The single-phase asynchronous motor uses capacitance to shift the phase to generate a rotating magnetic field, under the action of the rotating magnetic field, the rotor induces a current and interacts with the rotating magnetic field to produce a rotating torque, if the capacitance is out of capacity and a short circuit can not produce a rotating magnetic field.

If the air conditioner is broken, use the capacitor on the table to run the motor to improve the electric fan, I think this should not be possible, and this should be something you can't improve yourself, so you should not try it lightly.

The air conditioner is broken, and I want to use the operating capacitance of the desk fan. It is not possible to modify an air conditioner, because the capacitance inside the fan is relatively small, and the capacitor on the compressor cannot be replaced.

Hello, you can modify it like this, use the air conditioning fan blades to change it to a table fan, but pay attention to the capacitor matching. And pay attention to the correct wiring.

You can't understand this sentence to anyone.

The parts inside can be used. It's just that changing it requires you to buy a lot of things.

The air conditioner is broken, and I think it should not be possible to use the capacitor on the stage to run the motor to modify the e-commerce, but the effect of this feeling is also not good, so I think this should not be reconciled with this modification.

If it is a skilled master, of course, it can be modified into a row fan, which is actually very convenient.

The air conditioner is broken, and it is not possible to modify the table fan with a capacitor to run the motor. Because its capacitance cannot be used with retrofit table fans.

If the air conditioner is broken, use the capacitor of the fan to run, and the motor can be changed to a spring.

Single-phase asynchronous motor adopts the method of capacitance phase shift to generate a rotating magnetic field, under the action of the rotating magnetic field, the rotor induces a current and interacts with the rotating magnetic field to produce a rotating torque, if the capacitance is out of capacity and short circuit can not produce a rotating magnetic field.

1. When the capacitor has no capacity, sometimes the motor does not rotate.

Second, there is a bit of capacity, and it is more difficult to start.

The capacitor is connected to the secondary winding, and its purpose is that when the current is passed into the main coil, the current flows into the capacitor and then into the secondary coil, so that the main and auxiliary coils produce an electrical angle of 90 degrees apart, and after entering the coil, a rotating magnetic field can be generated, and the motor can be rotated. If there is no electric angle of this difference, the motor cannot be rotated, and if the capacitance capacity is reduced, the current flowing through the sub-coil is very small, and the motor cannot be rotated.

Rotate the blades by hand to see if it is flexible, 1. If it feels very heavy when it turns, it is generally too much dust stuck in the motor bearing, disassemble the motor to clean it up, and then add some butter.

2. If it turns very flexibly, it may be that there is a problem with the circuit, check the coil of the fan motor, the general resistance measurement is normal within a few hundred ohms, if there is a situation of several thousand ohms, the coil is basically broken, and the general main line coil is connected in series with a high-temperature fuse, check whether it is fused, if it is fused, it will be replaced with a new one, or it will not work, and it can only be replaced with a new one, and the motor is not as cheap as buying a new one.

Without capacitance, there is no rotating magnetic field, and adding capacitance is equivalent to playing the role of phase shifting. No capacitance just can't start if a force is applied. For example, if you flip it by hand, the fan can be operated. You can try it out in practice.

Without capacitance, it is impossible to change the phase of the power supply and to generate a rotating magnetic field.

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It can be replaced, if it is for starting, then the starting speed is slower when it is turned on, if it is used for running, the speed will not be high, and the capacity determines the current size.

Absolutely, the wind speed does not affect it.

No. The starting capacitor is to assist the motor to start when the motor starts, and it does not work when the motor is started; The operating capacitor is to assist the motor to run after the auxiliary motor is started, that is, it is still functional. The capacitance of an electric fan is generally the starting capacitor.

It has nothing to do with speed. So change to a large capacitor, and the electric fan will not run faster.

The capacitor will definitely speed up when it is changed, but it cannot be increased arbitrarily, and it should be selected according to the mark on the nameplate. Otherwise, it will heat up the motor or even burn out the motor.

It will be fast, the larger the capacity of the capacitor, the greater the current flowing, and the faster the rotational speed will be, but it will burn out due to too fast rotation.

No, the rotational speed is determined by the winding and the connection. If your capacitor doesn't break, you don't need to change it.

1. Change a large capacitor to the electric fan, and the speed of the electric fan will not be accelerated. The reason is that the role of the starting capacitor is to provide torque to the fan motor, the capacitor is normal, and the fan rotates strongly.

2. The speed of the fan motor is determined by the motor itself, which is determined in the design of the motor, and has nothing to do with the size of the capacitor (except for the phenomenon of capacitor failure).

3. The size of the fan starting capacitor is matched with the motor, and cannot be increased or decreased at will, otherwise it will affect the life of the motor.

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No. The starting capacitor is larger, the motor speed increases, but the temperature will also rise to too high, there is an overheating circuit in the motor, if there is a short circuit in the coil winding, the heat will increase in a short time, shorten the service life of the motor.

If you feel that the motor speed is slower than before, the possible fault is that the motor is short of oil, you can try to apply some oil to the bearings at both ends of the motor.

It is recommended to change the capacitor with the same capacitance, because the starting capacitor capacity has been reasonably tested and designed by the manufacturer, and it is the most suitable starting capacitor. However, after the electric fan is used for a long time, the starting capacitor will be reduced, resulting in the motor being unable to drive the load, it is recommended to choose a capacitor that is 10% 20% larger than the manufacturer's design, and the effect will be better.

Starting capacitor. Capacitive induction motors have two windings, namely the starting winding and the running winding. The two windings differ by 90 degrees spatially. A capacitor with a large capacity is connected in series on the starting winding, and when the running winding and the starting winding pass through a single-phase alternating current, the current in the starting winding is 90 degrees ahead of the current of the running winding in time due to the action of the capacitor, and reaches the maximum value first.

Two identical pulsed magnetic fields are formed in time and space, so that a rotating magnetic field is generated in the air gap between the stator and the rotor, and under the action of the rotating magnetic field, an induced current is generated in the rotor of the motor, and the current interacts with the rotating magnetic field to produce electromagnetic field torque, which makes the motor rotate.

No, the motor will overheat. The starting capacitor capacity is fixed, if you feel that the motor speed is slow, you need to lubricate the electric fan at this time. It is still necessary to determine whether there are some external reasons.

For example, if the plug is not plugged in properly, the fan switch is not fully turned on, and the general fan should also pay attention to whether it is turned off regularly, if these are not problems, it may be the cause of the electric fan itself.

Replacing small capacitors with large capacitors will have adverse effects, mainly because the temperature rise of the motor is too high, which shortens the service life of the motor. The capacitance of household ceiling fans is generally used according to the power of the motor. When replacing the capacitor, it is advisable to increase the capacitance by 10% to 20%.

If the capacity is small, the starting torque will be small, the running speed will be slow, and the capacitor can be replaced if the capacity is not much different.

It is best to change the capacitance with the same capacitance, the starting capacitor capacity is designed by the manufacturer, it is the most suitable starting capacitor, do not easily increase the capacity for the life of the motor, if you feel that the motor speed is slow, it should be a lack of oil, disassemble and add some oil to the bearings at both ends of the motor, and the capacity of the starting capacitor will be changed to a larger motor faster, but the heating will increase at the same time.

First check whether the motor bearing is stuck or too tight, normal access to the power supply, if not, please turn the rotor, if it will slowly turn to become faster, it means that the capacitor is broken. If you don't turn to feel whether the motor has a slight vibration, if there is no vibration, the motor is burned, and if there is vibration, it can be said that the motor bearing is stuck.

Remove the capacitor, short circuit discharge, and then measure with a pointer multimeter r*10k gear, after a period of time the pointer is stable, the pointer should point at the infinity position, if not, the capacitance leakage, if the pointer does not move when the measurement is started, the capacitance is open or invalid.

Common faults of electric fans:

1. The fan shaft part should ensure that there is lubricating oil, otherwise the fan blade cannot be dragged by the motive on it. If you are at home, you can choose to turn off the power and then turn the fan blades, if the rotation is stiff, there is basically no lubricating oil.

2. Wear and tear caused by long-term use. If a fan is used for a long time, the motor will wear out, and the shaft sleeve of the motor will easily burn out after wearing.

3. The fan does not rotate due to overheating. There is a motor in the fan device, and there will be an overheating circuit breaker in the motor, if there is a short circuit in the coil winding, the heat will increase in a short time, and the motor will "strike" in this case.

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If the speed of the electric fan is slow or does not rotate, most of them are motor or capacitor problems.

Is there a fault there when plugged in, do you turn the fan blades with your hand, and slowly turn them?

The first step is to check whether the motor bearing is stuck or too tight. Normal access to the power supply, if not, please turn the rotor, if it will slowly turn to become faster, it means that the capacitor is broken, if you do not turn to touch the motor if there is a slight vibration, no vibration is the motor burned, there is vibration can be said to be the motor bearing stuck.

The easiest way is to measure the capacitance with a capacitance meter or replace it with a capacitance capacitor, and if it does not rotate or the speed is low, you will suspect the motor, if the single-phase electric fan motor is not turned on, the instrument can not be 100% judged to be good or bad, so you have to ask a professional maintenance worker.

It is very simple, remove the capacitance, short the discharge and then measure with the pointer multimeter R*10K, after a period of time the pointer is stable, the pointer should point to the infinity position, if not, the capacitance leakage, if the pointer does not move when the measurement is started, the capacitance is open or invalid. There is also a way, remove the fan blades, remove the wiring at one end of the capacitor, and then turn on the power, turn the motor shaft by hand, and the motor can turn, indicating that the motor is good.

I could have picked the blades of the fan to see if it could spin up, but it was too dangerous.

You can disengage the capacitor and measure the capacity to see if it is much less than the nominal capacity.

Try a good capacitor and you'll know.

The slow speed of the electric fan may be caused by a short circuit between the windings or a decrease in capacitance, and the electric fan cannot start on its own when the capacitor fails.

In most cases, the capacitor is damaged, mainly due to breakdown, and it can be normal after replacement.

Since the withstand voltage of the capacitor used in the fan is more than 300V, the quality of the capacitor cannot be correctly judged by using a multimeter (the test voltage is only 9V).

The starting capacitor principle of the electric fan is: the motor rotates by the coil to generate a magnetic field to push out the rotor, and the fan uses a single-phase electric power supply, that is, the fire zero line, which is supplied to the main winding of the motor, and there is also a wire that is the starting winding, which is connected to a capacitor from the live wire, **The starting voltage of the different phases of the starting winding, the motor can start normally, if there is no capacitance, the fan can not start, but it can also be rotated by hand to assist the rotation, but the motor rotation force will be reduced. By the way, the three-phase motor is capacitor-free, as it is powered by three live wires of the same voltage and different phases.

To put it simply, it is a starting capacitor, which gives a phase-biased voltage when starting.

If the starting capacitor of the electric fan is broken, the capacity will decrease, and the electromotive force of the starting winding and the running winding will be uneven, and the speed will be slow.

It is the electric fan to be lubricated

It's possible.

Within a certain range, the capacitance value is proportional to the torque of the motor. Of course, going below the range will cause difficulty in starting, and going above the range will cause the speed to burn the motor too quickly or not start.

When the capacitance drops below 60% of the original value, it will not be able to start. Seven or eighty percent of the time can be started by turning the fan blades by hand, but the speed slows down. Ninety percent of the time, it generally doesn't have much impact.

In fact, many times the slow speed of the fan is due to bearing damage or lack of oil, that is, it can be started when the high gear is turned on, and it cannot be started when the low gear is opened. Some of the enameled wires burn out causing slowdown, but less commonly.

It can be rotated, but if the large capacity is broken, it will be difficult to start or cannot be started, causing the motor to burn out, and the small capacity is broken, and the motor will be weak (the output power is reduced), so it must be replaced with a good one and then used.

When the single-phase sinusoidal current passes through the stator winding, the motor will produce an alternating magnetic field, the strength and direction of this magnetic field change with time as a sinusoidal law, but it is fixed in the spatial orientation, so it is also called the alternating pulsating magnetic field.

This alternating fluctuating magnetic field can be decomposed into two rotating magnetic fields that are opposite to each other at the same speed and in the direction of rotation, and when the rotor is stationary, these two rotating magnetic fields produce two torques of equal magnitude and opposite directions in the rotor, so that the resultant torque is zero, so the motor cannot rotate.