Pierre's 170W in 1600W out Looped Very impressive Build continued & moderated

[Jeg]

Hi Gotoluc,

Here is an end shot of the stator and rotor.

Great skills great job L192!
What is your wire gauge?

Jeg

ps. TK/Cherryman nice work guys, thanks fore these programming lessons. 

[r2fpl]

Possible relays Pierre

[listener191]

Great skills great job L192!
What is your wire gauge?

Jeg

ps. TK/Cherryman nice work guys, thanks fore these programming lessons. 

Hi Jeg,


I just checked and it 0.53mm which is 23AWG rated at about 5A continuous at a nominal temperature. The wire is is rated to 160 deg C, so it could be run beyond 5A.

I had plenty of this gauge and also 0.8mm which is closer to 20AWG.

The slot CSA would accommodate 0.8mm however it would be tight getting the wire pass the pole ends.

Regards

L192

[Jeg]

Hi Jeg,


I just checked and it 0.53mm which is 23AWG rated at about 5A continuous at a nominal temperature. The wire is is rated to 160 deg C, so it could be run beyond 5A.

I had plenty of this gauge and also 0.8mm which is closer to 20AWG.

The slot CSA would accommodate 0.8mm however it would be tight getting the wire pass the pole ends.

Regards

L192

Thanks a lot for the info. I am to order some wire as i have plenty of 0.4mm which seems to be very thin for this job.
In the meanwhile, after some searching, and after balancing between cost and power characteristics, i ended up with transistors bd911/912 (http://www.st.com/resource/en/datasheet/bd911.pdf) for low and high side switches, and tip120 for driving them through my arduino. Total cost not over 60euros. If i was sure that mosfets can do the job, i would go with them even if i need nearly 120Euros for the boards.

[listener191]

This shot gives  an idea of what you get out on the rotor for 3A pk input on six aligned coils. There was a 25 Watt load on the rotor coils (230V winding on original generator).
4.5A obtained by bring the rail above 35V for a short period double the peak output voltage from 120V to 240V.

Of course the opposite 6 coils (opposite polarity) were not present so I would expect less induction. If they were present this would bring the output up to around 480V peak, assuming just over 3A through each set of coils.

Regards

L192