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Forum Index : Windmills : Earth Wire

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leftcliq
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Joined: 21/07/2012
Location: Australia
Posts: 51
Posted: 01:35pm 21 Sep 2014
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Hi Guys,
Great forum. I have a 7 phase F&P motor working ok, my question is: Do I need the earth connection on the motor? The rectified AC delivers Pos and Neg so is the earth required?

Regards,
Dale.

 
Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5078
Posted: 03:05pm 21 Sep 2014
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Hi Dale

How are you using the output of the F&P? Battery charging?

Glenn
The best time to plant a tree was twenty years ago, the second best time is right now.
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leftcliq
Regular Member

Joined: 21/07/2012
Location: Australia
Posts: 51
Posted: 07:05pm 25 Sep 2014
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  Gizmo said   Hi Dale

How are you using the output of the F&P? Battery charging?

Glenn


Does it matter how the output is used? I am charging up capacitors, yes battery charging.

Also, with the rewired 7 phase 60s, it is cogless. As I am after more amps, could I rewire it to a 24V system and still remain cogless? I know that amperage is the load demand on the motor. Currently, When I turn the motor by hand I am getting up to approx 35V and easy to move. If I drop this down to between 12-24V, will this motor be easy to turn or will the added current drain be too much to turn?

Hope this makes sense.

Regards,
Dale.

 
leftcliq
Regular Member

Joined: 21/07/2012
Location: Australia
Posts: 51
Posted: 07:21pm 25 Sep 2014
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  leftcliq said  
  Gizmo said   Hi Dale

How are you using the output of the F&P? Battery charging?

Glenn


Does it matter how the output is used? I am charging up capacitors, yes battery charging.

Also, with the rewired 7 phase 60s, it is cogless. As I am after more amps, could I rewire it to a 24V system and still remain cogless? I know that amperage is the load demand on the motor. Currently, When I turn the motor by hand I am getting up to approx 35V and easy to move. If I drop this down to between 12-24V, will this motor be easy to turn or will the added current drain be too much to turn?

Hope this makes sense.

Regards,
Dale.





Rather than going down this path, have you used the improved high power rotors on the type 4 60s wired as 7 phase? Will there be an extra load on the motor to deliver the higher power on the cogless system?

-Dale.

 
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