Online current, flux and power monitoring
This chapter has shown that electrical techniques are powerful tools for the CM of electrical machines, particularly axial leakage flux, current and power, offering the potential to provide a general CM signal for the machine. The availability of high -quality, digitally sampled, mechanical vibration and electrical terminal 'performance' data from electrical machines opens the possibility for more comprehensive monitoring of the machine and prime mover or driven machine combinations. However, these signals generally require broad bandwidth (>50 kHz) and a high data rate for adequate analysis. Therefore, the principal difficulty of applying these techniques is the complexity of the necessary spectral analysis and interpretation of their content.
Online current, flux and power monitoring, Page 1 of 2
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