×
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

Shorted Stator

Shorted Stator

Shorted Stator

(OP)
We Have a vertical motor where the stator and the rotor both are totally immersed in dielectric oil.  This morted shorted to ground.  When the motor was removed and opened up we noticed that the bushings  had picked up and alot of metal filings were in the oil.  The centre lead, at its weak spot blew a hole in the lead and went to ground.  The problem is that in the JB where these leads exit the oiled filled can the mounting studs are insulated from the steel can by an insulating bushing.  The bushing on the phase  that had the short was fine, the other 2 were burnt to a crisp!!  Any ideas???

300 Hp     1800rpm
575 Volt
VFD driven

RE: Shorted Stator

You should red-flag and ask for this to be moved to the Electric motors and motor controls forum

TTFN

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