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Forum Index : Windmills : Does re-phasing reduce required tourqe input?

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Offgridguy
Newbie

Joined: 29/03/2022
Location: United States
Posts: 5
Posted: 11:08am 04 Apr 2022
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As the subject asks .. My intuitive thought is no it does not reduce the required input to rotate as power out is proportional to power in minus losses in across the board efficiencies. However on occasion intuitive thought be damned crap happens from lack of knowledge.
I'm building a water wheel.... I know I know this is windmill.... I've got that end covered However the characteristics of re-phasing are new to me. I understand the idea of decoging for start up ... Does decoging also reduce generation ripple for better efficiency?
Inquiring mind .
I searched couldn't really find a straight answer. Thanks yall
 
Grogster

Admin Group

Joined: 31/12/2012
Location: New Zealand
Posts: 9462
Posted: 11:24am 04 Apr 2022
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Your other threads have been locked.
Please try to only post ONE thread.
If you had an issue in only posting one(that resulted in three), please respond here, and I can raise that with the admin.

Other then that, welcome to the forums.
Smoke makes things work. When the smoke gets out, it stops!
 
Offgridguy
Newbie

Joined: 29/03/2022
Location: United States
Posts: 5
Posted: 07:18pm 04 Apr 2022
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I used a special character from my key installed emoji without realizing it caused an error the first two times. Apologies.
 
Grogster

Admin Group

Joined: 31/12/2012
Location: New Zealand
Posts: 9462
Posted: 11:43pm 04 Apr 2022
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No apology needed, and sorry if I sounded upset or something - not the case, but we do get a few new users who post the same thread in multiple forums, so I just wanted to make sure you were not one of those.

Welcome, and I hope you get the answers you are looking for.
Smoke makes things work. When the smoke gets out, it stops!
 
Offgridguy
Newbie

Joined: 29/03/2022
Location: United States
Posts: 5
Posted: 01:11am 05 Apr 2022
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Totally get it. I hunted for a delete post feature.. no such luck. Lol . In tinkering with my setup today I found I am able to get 36 volts no load without any phase reconfiguration of the windings yet.
 
pollenface

Regular Member

Joined: 01/09/2020
Location: Australia
Posts: 47
Posted: 08:19am 27 Nov 2022
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Sorry compleste newbie here,

By rephasing do you mean running on 2 phases instead of 3? I tested this with my wind turbine using an electric motor to spin it up. The torque required to turn the generator was slightly less and the power output was comparable to the 3 phase result which surprised me.
Off grid man caver
 
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