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Shipboard Electrical Power Systems
book

Shipboard Electrical Power Systems

by Mukund R. Patel
December 2011
Intermediate to advanced content levelIntermediate to advanced
370 pages
12h 24m
English
CRC Press
Content preview from Shipboard Electrical Power Systems
110 Shipboard Electrical Power Systems
losing much accuracy. Denoting the constant rotor resistance R
r
and leakage induc-
tance L
r
at stator frequency f, the rotor reactance X
r
= 2 π f
r
L
r
varies directly with the
slip frequency f
r
= s × f. The 3-phase stator voltages produce rotating magnetic ux
of amplitude determined by the basic voltage Equation 3.2 in Chapter 3. The sta-
tor ux, less the leakage ux, ows in the magnetic circuit through the air gap and
produces voltage in the rotor conductors equal to (Slip × V
BR
), where V
BR
= induced
voltage in the rotor at blocked-rotor (i.e., speed = 0 or slip = 1.0). Since V
BR
is linearly
proportion ...
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Publisher Resources

ISBN: 9781439828175