Induction motor to generator

[Guruji]

motor generator

Hi to All,
Great thread
I would like to share my test with a 24 v dc speed controller motor
and would appreciate if it can be used to run another motor / gen with caps


cheers
totoalas




DC MAGVERTER 240611.avi - YouTube

Hi Totoalas nice vid. I am trying on a washing machine motor to turn it in a generator but still nothing is coming out of it. I hooked two capacitors in series 330uf 400v each and changed the pulley for faster turn but invain.
I will keep trying.
Thanks

[Tishatang]

Hi Guruji

I read you sparked the armature with 12 volts. I think it would be better to hit one of the field coils with 12 volts while it is running? The armature will not produce a magnetic field compared to a field coil. Actually, the armature in an induction motor has no coils if memory serves me right?

Some motors hold residual magnetism in the iron and don't need this step.

This is only a guess on my part based on reading I have done years ago making a motor into a generator. Also, if you use a 3 phase motor, you may not need to use the capacitors? But then you would have 3 phase AC instead of single phase.

Hope this helps,
Chris

[totoalas]

Hi Totoalas nice vid. I am trying on a washing machine motor to turn it in a generator but still nothing is coming out of it. I hooked two capacitors in series 330uf 400v each and changed the pulley for faster turn but invain.
I will keep trying.
Thanks

hi guruji im also planning to use the washing machine motor which is abundant and cheap one to test..... my idea is to machine the rotor to insert neo magnets the size of a dime or one which can fit easily on the rotor
maybe this will solve the output voltage issue

cheers
totoalas

[Guruji]

Hi Guruji

I read you sparked the armature with 12 volts. I think it would be better to hit one of the field coils with 12 volts while it is running? The armature will not produce a magnetic field compared to a field coil. Actually, the armature in an induction motor has no coils if memory serves me right?

Some motors hold residual magnetism in the iron and don't need this step.

This is only a guess on my part based on reading I have done years ago making a motor into a generator. Also, if you use a 3 phase motor, you may not need to use the capacitors? But then you would have 3 phase AC instead of single phase.

Hope this helps,
Chris

Hi Tishatang would be a good idea to spark the armature while it's running I try this. With the formula of caps I'm only using 166uf but I should use parallel too to see.
Maybe this motor is not good for generator should try another.

[Tishatang]

@Guruji
Yes, you should try another motor. I am going to guess this is a 3 speed motor. The 8 leads is confusing. Because what you have is three separate windings for washing, a winding for starting under load, and a reversing set.

Four leads would be a common with the other ends for the 3 speeds. One pair for starting and one pair for reversing.

None of the windings will be as large as a one speed motor, say out of a dryer.

However, assuming the motor is good: You could wire the coils in series instead of going to the common. This will give you higher voltage for a given rpm. Maybe you could get 120 volts only turning 500 rpm as a guess? Also, the driving motor could use a smaller pulley for more torque.

Do not use the starting winding as it is not designed for continuous use.

tishatang

[Guruji]

@Guruji
Yes, you should try another motor. I am going to guess this is a 3 speed motor. The 8 leads is confusing. Because what you have is three separate windings for washing, a winding for starting under load, and a reversing set.

Four leads would be a common with the other ends for the 3 speeds. One pair for starting and one pair for reversing.

None of the windings will be as large as a one speed motor, say out of a dryer.

However, assuming the motor is good: You could wire the coils in series instead of going to the common. This will give you higher voltage for a given rpm. Maybe you could get 120 volts only turning 500 rpm as a guess? Also, the driving motor could use a smaller pulley for more torque.

Do not use the starting winding as it is not designed for continuous use.

tishatang

Thanks tishatang yes I think this has alot of windings. Start; washing; reverse and high speed for dryer.
I am on another right now but could tried in series all windings on the other too maybe after this motor I try again on the other.