Your browser does not support JavaScript!

Offline monitoring

Offline monitoring

For access to this article, please select a purchase option:

Buy chapter PDF
(plus tax if applicable)
Buy Knowledge Pack
10 chapters for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
Condition Monitoring of Rotating Electrical Machines — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

Offline testing for electrical machines has developed considerably over the last 30 years and this is represented in the summary tables above but also in the availability of a number of internationally recognised standards. But a review of the tables shows that the most developed off-line techniques are associated with the stator cores and windings and rotor windings of larger turbo-generators and hydro-generators. Not all offline tests are easy to perform and many cannot duplicate operational conditions. In many ways, the authors suggest that offline testing, particularly for larger machines, provides the background diagnostic information which should be used to direct the focus of subsequent online CM.

Chapter Contents:

  • 12.1 Introduction
  • 12.2 Stator core
  • 12.2.1 General
  • 12.2.2 Turbo-generators
  • 12.2.3 Hydro-generators
  • 12.3 Stator windings
  • 12.3.1 Summary of offline tests
  • 12.3.2 Frequency response analysis
  • 12.4 Rotor windings
  • 12.4.1 Summary of offline tests
  • 12.4.2 Synchronous rotor surge tests
  • 12.5 Conclusions

Inspec keywords: machine testing; condition monitoring; stators; rotors; hydroelectric generators; turbogenerators

Other keywords: electrical machines; stator cores; hydro-generators; background diagnostic information; offline monitoring; turbo-generators; rotor windings; offline testing

Subjects: Production facilities and engineering; a.c. machines

Preview this chapter:
Zoom in

Offline monitoring, Page 1 of 2

| /docserver/preview/fulltext/books/po/pbpo145e/PBPO145E_ch12-1.gif /docserver/preview/fulltext/books/po/pbpo145e/PBPO145E_ch12-2.gif

Related content

This is a required field
Please enter a valid email address