Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Register Log in
  • Congratulations KootK on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Ghost Phase Wiring

Status
Not open for further replies.
HumV

HumV

Electrical
Nov 7, 2009
1
I have a job site where the compressor burnsout every year. When I check the wiring between phases I get 460 Volts. Two phases to groung I get 460 volts; however, when I check the third phase to ground I get 0 volts. I have a 75 horsepower motor. could the wiring be problem for my burnouts
 
Replies continue below

Recommended for you

Sort by date Sort by votes
I doubt it. It sounds like you have corner grounded delta. The motor doesn't generally care about that.

Look more for a current or voltage imbalance between phases.

Also look for short cycling. The compressor should not be starting and stopping more frequently than every 15 minutes.

Look for a a bad head unloader. If the compressor isn't being unloaded one event could be fatal.

Keith Cress
kcress -
 
Upvote 0 Downvote
How is this comm or signal processing? [ponder]

Dan - Owner
Footwell%20Animation%20Tiny.gif
 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

dynaman
  • Locked
  • Question
Cross-Correlation and Phase Difference
Replies
16
Views
243
dynaman
dynaman
ivotebexreni
  • Locked
  • Question
Phase Spectrum from Amplitude Spectrum
Replies
5
Views
92
dicer
dicer
kilwan
  • Locked
  • Question
Phase Shift Keying
Replies
3
Views
38
IRstuff
IRstuff
guetguet
  • Locked
  • Question
Implementing a phase accumulator using a Virtex FPGA
Replies
2
Views
45
zappedagain
zappedagain
bentov
  • Locked
  • Question
Industrial data cable wiring practice 4
Replies
4
Views
40
bentov
bentov

Part and Inventory Search

Sponsor

Back
Top Bottom