CONTENTS

CHAPTER XIII. SYNCHRONOUS INDUCTION GENERATOR.

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PAGE

113. Induction machine as asynchronous motor and asynchronous
generator.......................194
114. Excitation of induction machine by constant low frequency
voltage in secondary—Operation below synchronism, and
above synchronism...................195
115. Frequency and power relation—Frequency converter and syn-
chronous induction generator................196
116. Generation of two different frequencies, by stator and by rotor. 198
117. Power relation of the two frequencies—Equality of stator and
rotor frequency: double synchronous generator—Low rotor
frequency: induction generator with low frequency exciter,
Stanley induction generator...............198
118. Connection of rotor to stator by commutator—Relation of fre-
quencies and powers to ratio of number of turns of stator and
rotor.........................199
119. Double synchronous alternator—General equation—Its arma-
ture reaction .....................201
120. Synchronous induction generator with low frequency excita-
tion—(a) Stator and rotor fields revolving in opposite direc-
tion—(b) In the same direction—Equations.......203
121. Calculation of instance, and regulation of synchronous induc-
tion generator with oppositely revolving fields.......204
122. Synchronous induction generator with stator and rotor fields
revolving in the same direction—Automatic compounding and
over-compounding, on non-inductive load—Effect of inductive
load.........................205
123. Equations of synchronous induction generator with fields re-
volving in the same direction. ..............207
124. Calculation of numerical instance............209
CHAPTER XIV. PHASE CONVERSION AND SINGLE-PHASE GENERATION.
125. Conversion between single-phase and polyphase requires energy
storage—Capacity, inductance and momentum for energy
storage-?—Their size and cost per Kva . . . .'.......212
126. Industrial importance of phase conversion from single-phase to
polyphase, and from balanced polyphase to single-phase . . . 213
127. Monocyclic devices—Definition of monocyclic as a system of
polyphase voltages with essentially single-phase flow of energy
—Relativity of the term—The monocyclic triangle for single-
phase motor starting..................214
128. General equations of the monocyclic square........216
129. Resistance—inductance monocyclic square—Numerical in-
stance on inductive and on non-inductive load—Discussion . 218
130. Induction phase converter—Reduction of the device to the
simplified diagram of a double transformation.......220
131. General equation of the induction phase converter.....222