×
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

Generators - loss of vacuum

Generators - loss of vacuum

Generators - loss of vacuum

(OP)
Please can anyone throw some light onto the loss of vacuum when running a generator and particularly what protection can be used to overcome this.

Many thanks

Rob Eyre

RE: Generators - loss of vacuum

Hi
are you saying that the generator has a vaccuum to reduce windage??
If so is it "rising" towrds 101kpa (a) when the unit is static and or rotating. From this we are going to mention rotating seals and gasketing and cable entries etc etc etc

I have never serviced an alternator which uses vaccuum. BUt we have dealt with a lot of chemical plants which do?

I am confused when you say protection? surely this could be from the simple pressure switch to an industrial type pressure transmitter to the control room.

Do you have a vaccuum pump on this service? If so youve got a big leak. A common tecnique in chemical plants to trace down the leaks is to +ve pressure the unit say +20 kpa(g) and the use snoop or some other suitable leak detector to spot the problem.

now i've shot my mouth off I'll sit back to see what I missed here
Let us know how it goes
Don

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