×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

inductive generation of power from AC motors
2

inductive generation of power from AC motors

inductive generation of power from AC motors

(OP)
I have had various sources of information indicating that an A.C. Squirel cage motor can be wired to "GENERATE" A.C.
"Simply turn the shaft and add some D.C. to some of the windings and A.C.will appear accross some of the other windings. Having set up several differant A.C.motors in my lathe to test these statements, I have never been able to generate any voltage from associated windings.
I suppose, if I were to connect the  A.C.lines to a motor while forcibly turning it faster than the ascynchronous speed it would generate or force power back towards the power station.
Has any one had experience with "INDUCTIVE" generation of power as described above?

Regards  NOSMO

RE: inductive generation of power from AC motors

Try Thread237-16865 or similar found by using the advanced keyword search feature of this website.

RE: inductive generation of power from AC motors

Induction generators are used occasionally.
They are usually three phase and are connected to the THREE phase supply (ie fulkl rated voltage) when up to near "synchronous" speed.  On synchronising, they draw magentising current as if they were motors started DOL, ie 6 to 8 TIMES FLC!  THEN they will behave as predicted by the circle diagram.
They can be played with up and down in speed to vary their output (or consumption if the turbine/prime mover slows down).  In Victoria Australia we have a 2 MW unit on a small dam (running out of water at present) and a 7.5 MW unit on one of the Melbourne water supply dams.   

RE: inductive generation of power from AC motors

Induction generators are used occasionally.
They are usually three phase and are connected to the THREE phase supply (ie full rated voltage) when up to near "synchronous" speed.  On synchronising, they draw magentising current as if they were motors started DOL, ie 6 to 8 TIMES FLC!  THEN they will behave as predicted by the circle diagram.
They can be played with up and down in speed to vary their output (or consumption if the turbine/prime mover slows down).  In Victoria Australia we have a 2 MW unit on a small dam (running out of water at present) and a 7.5 MW unit on one of the Melbourne water supply dams.   

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources