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Online temperature monitoring

Online temperature monitoring

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Condition Monitoring of Rotating Electrical Machines — Recommend this title to your library

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This chapter shows that temperature measurement yields valuable bulk indications of the condition of an electrical machine using simple sensors and narrow bandwidth (<1 Hz), low data rate signals and, because temperature limits the rating of a machine, overtemperature is a valuable CM signal. Temperature detection has repeatedly been shown to be an effective global monitoring technique for electrical machines, but has been neglected as a monitoring method. An important conclusion of this work is that the availability of new FBG temperature sensors gives the potential for much greater distributed electrical machine temperature measurements.

Chapter Contents:

  • 6.1 Introduction
  • 6.2 Local temperature measurement
  • 6.3 Hot-spot measurement and thermal images
  • 6.4 Bulk measurement
  • 6.5 Conclusions

Inspec keywords: temperature measurement; temperature sensors; electric machines; fibre optic sensors

Other keywords: global monitoring technique; CM signal; overtemperature; distributed electrical machine temperature measurement; FBG temperature sensors; online temperature monitoring; temperature detection

Subjects: a.c. machines; Fibre optic sensors; d.c. machines; Thermal variables measurement

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