Jump to content


Photo

Changing 500 V Motors Into 400 V


  • Please log in to reply
1 reply to this topic

#1 Ahmar

Ahmar

  • Members
  • Pip
  • 1 posts

Posted 23 September 2008 - 07:22 AM

For one of our projects supplier has supplied 500 V squirrel cage induction motors but our system voltage is 400 V ac. How can we convert these 500 V motors into 400 V? can it be done by rewinding? if so what changes in the winding need to be made.



#2 marke

marke

    Posting Freak

  • Moderator
  • PipPipPipPipPipPip
  • 2,602 posts
  • Gender:Male
  • Location:Christchurch, New Zealand

Posted 23 September 2008 - 08:12 AM

Hello Ahmar

You can change the voltage by rewinding. Reduce the number of turns by the voltage ratio. To reduce the voltage by 10%, reduce the number of turns by 10%.
You also need to increase the wire size as the current at the reduced voltage will be higher.

Best regards,
Mark.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users