×
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

Korndorfer system to start a syncronous motor

Korndorfer system to start a syncronous motor

Korndorfer system to start a syncronous motor

(OP)
I have to put to work a 1600 Kw 3300V syncronous motor with a autotransformer fot start it.  I don´t know the sequence witch combine the regulation of the indirect excitation and the Korndorfer system (autotransformer, close method) to start a syncronous motor.

RE: Korndorfer system to start a syncronous motor

This sounds like a brushless synchronous machine. If it is, the sequence is simple. Start the motor. Apply the field. If and when it reaches about 95 to 97% speed, the motor will apply its internal field and pull in on its own. If you have regulation, turn it on after the motor is in synch, and... If VAR regulation, no need for load; If PF regulation, it's best to wait after load.
Good luck.

RE: Korndorfer system to start a syncronous motor

Isn't it important to make sure that you don't have an incomplete sequence on the RVAT starter before energizing the excitation system? I know it is on brush-type synch motors.

JRaef.com
Eng-Tips: Help for your job, not for your homework  Read FAQ731-376 pirate

RE: Korndorfer system to start a syncronous motor

Good point, JRaef. It is best.

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