1 research outputs found
Understanding Frequency Response of Induction Motor Winding through Electromagnetic Wave Equations
Frequency response analysis offers an in-
sight about the integrity of machine windings, when
employed as a tool for condition monitoring. To en-
sure that, an electromagnetic wave is injected from one
terminal of winding, and the power of the wave at the
receiving terminal is measured. The power at the termi-
nals is measured in terms of either voltage or current.
This difference in power at the two terminals can be at-
tributed to the medium’s permittivity, permeability and
conductivity, through which the signal is being trans-
mitted. This paper offers an explanation for the behav-
ior of the voltage gain frequency response of induction
motor winding and propagating medium parameters by
employing the fundamental electromagnetic wave equa-
tions. Their explanation illustrates how these param-
eters can affect the response. The correlation estab-
lished using Maxwell’s equation and these parameters
with frequency response analysis is evident while iden-
tifying open winding fault and issue with machine core
inductance. The results are analyzed and interpreted
with the new correlation