Online temperature monitoring
Peter Tavner, Ran Li, Christopher Crabtree · Institution of Engineering and Technology eBooks · 2020
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.