TABLE OF CONTENTS
Preface iv
1 Introduction to Machinery Principles 1
2 Transformers 23
3 AC Machine Fundamentals 73
4 Synchronous Generators 81
5 Synchronous Motors 123
6 Induction Motors 152
7 DC Machinery Fundamentals 202
8 DC Motors and Generators 214
9 Single-Phase and Special Purpose Motors 276
A Review of Three-Phase Circuits 287
B Coil Pitch and Distributed Windings 295
C Salient-Pole Theory of Synchronous Machines 302
S1 Introduction to Power Electronics 308
E Errata

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The excitation branch impedances are given referred to the high-voltage side of the transformer.
(a) Find the equivalent circuit of this transformer referred to the low-voltage side.
(b) Find the per-unit equivalent circuit of this transformer.
(c) Assume that this transformer is supplying rated load at 277 V and 0.85 PF lagging. What is this
transformer’s input voltage? What is its voltage regulation?
(d) What are the copper losses and core losses in this transformer under the conditions of part (c)?
(e) What is the transformer’s efficiency under the conditions of part (c)?