Generator - voltage to be identified

[matthys]

Hello everybody
I have a small generator (car wiper motor). I would like to use it to power a battery via a small wind turbine. However when I connect my generator to a drill I measure a voltage of maximum 2 volts. Is this normal? Not knowing what type of generator I have, I made a photo
Thank you for your answers.

[dirk pitt]

Well yes, it's normal.
it's an engine, not a generator.
if it is a 12V motor (wiper), I am not surprised that in generator, it provides not more than 2V.
so little chance that it works connected to your wind turbine.

[boubka]

Hello
at its nominal speed (I think more than 1000 rpm) in genes it must provide you with 12 v.
it is a continuous motor with permanent magnets so its reversibility must be total ...

[Other]

Hello
open it to see if there are two permanent magnets in the stator
If so, rewind it, wedge it in a vice and plant a drill in the axis and rotate it, plug a 12 volt light on the wires.
Normally there are 3 lines on these motors for low speed?

Andre

[dirk pitt]

Hello
at its nominal speed (I think more than 1000 rpm) in genes it must provide you with 12 v.
it is a continuous motor with permanent magnets so its reversibility must be total ...

yes sorry, I meant in operation with the wind turbine, ie at lower speed, the voltage will never reach 12V

[chatelot16]

atension the wiper motors are at 2 speed: it is necessary to measure the tension in 1 wire and the mass

between the 2 wires there is only the voltage difference between the 2 speeds

it is the low speed wire which gives the best performance of the engine: the high speed wire is connected to a coal which does not use the engine in an optimum way: it turns faster but the performance is not good