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Power Electronics and Motor Drives
book

Power Electronics and Motor Drives

by Bogdan M. Wilamowski, J. David Irwin
October 2018
Intermediate to advanced content levelIntermediate to advanced
1015 pages
40h 24m
English
CRC Press
Content preview from Power Electronics and Motor Drives
4-6 Power Electronics and Motor Drives
In the stator, both the stator joule losses,
P R I
js s s
= 3
2
, and the iron losses,
P E R
fe s ir
= 3
2
( / )
, are active. e
dierence between the absorbed electrical power and the stator losses is the power transmitted by the
stator to the rotor P
T
P P P P
T s js fe
=
(4.18)
With reference to the single phase equivalent circuit of Figure 4.4, the transmitted power has to be
attributed to the resistance R
r
/s and the following relation can be written as
P
R
s
I
T
r
r
= 3
2
(4.19)
Since, from the physical point of view, the rotor winding has an actual resistance, R
r
, the rotor joule
losses active in the rotor are
P
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Publisher Resources

ISBN: 9781439802861