Shorted Output Test

See the entire project at http://calebeng.weebly.com
A quick test of what happens when the phases of the generator are shorted out. One way of braking a turbine in heavier wind is to short the phases. This is useful since a Savonius turbine does not have a mechanism for furling out of the wind.

Category:

Science & Technology

Tags:

• VAWT
• vertical
• axis
• wind
• turbine
• Savonius
• generator
• shorted
• output

[bearhamo]

Nice generator. I have noticed mine will slow down when shorted too with a 3pst switch. If I added a ground wire to my switch would it brake even better, or is that a bad idea or (c) none of the above.

Thank you.

[Caleb6543]

@bearhamo I'm not sure there is a bad way to do it. If it works, great. Just as long as you don't short out the battery. :-)

[slacker361]

how much force will be needed to turn when it is shorted out. I guess what i am asking is what kinda winds will still hold it in place

[Caleb6543]

It will turn in any wind, just very slowly. It's like dragging your hand through water; takes almost no effort to go slowly, but a lot of effort to go quickly. So it is not a "brake" per-se; more like friction.

[Keveeee2000]

Any type of permanent magnet motor will do this (not sure about all brushless ones). It's nice to be able to slow your motor down in the event of high winds.

I had a switch on my boat that I could disconnect the gen from the battery and then short the two together and stop it

[DominickBlack]

Vary good to know! Nice VAWT!!!