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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
34-6 Power Electronics and Motor Drives
34.2.1 Wye and Delta Connections
e currents in the system will be determined by the load impedances. If the currents (a, b, c) are to be
b
alanced (i.e., equal in magnitude; 120° phase displaced), the impedances must meet two conditions:
e three-phase connection must be symmetrical.
e three phase impedances must be equal.
e two connections that meet the rst criteria are shown in Figure 34.7.
Note
t
hat
i
n
t
he
w
ye
c
onnection,
t
he
n
eutral
c
an
b
e
brought
o
ut”
a
nd
c
onnected
i
nto
a
f
our-wire
s
ystem, whereas in the delta connection, the neutral always leads to an open circuit.
e currents in the wye cas ...
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Publisher Resources

ISBN: 9781439802861