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. . . . 263
Synchronous Polyphase Motors .... 147
Tapering Conductors ........ 31
Target Diagram for Incandesceut Lamps . . 417
Temperature Coefficient of Copper .... 6
Three-brush Dynamo ......... 76
Three-phase Currents ......... 143
Three-wire and Five-wire Systems ... 70-92
Three-nire System, Auxiliary Generator . 78
Bridge arrangement of ... · · · · 74
with Three-brush Dynamo ....
of A. C. distribution ....
Transfer Bus bars ....... . . . 65
Transformers ........ .. . 149
Constant current ....
. . 171
Construction of ...
Cooling of ......
. . 167
Copper Losses . ....
Cores . . . . . . . ..
Efficiency of . ...
Hedgehog .. ·.· · · · ·
Magnetic Leakage in ...
. . 95
. . . . 158
21 Polyphase ........ . . . . 184
Potential. ........ ... 182
Protective Devices for ....
. . . . 174
Step-up and Step-down .. . . 149
. . . . .
Variable-ratio . . . . . . . .
Size and Location of ...
Two-phase Currents . . . . . . . .
Two- and Three-phase Motors ......
Underground Conductors ...
Cables for . . . . . .
Drawing in... · · · · · ·
Earthenware Conduits for . . . . . . 269
Edison Tube System of
in Iron Pipes ........
Manholes for ..........
Methods of Distribution ... .
Wooden Conduits for ......
Vacuum in Incandescent Lamps ... 401
Voltage, Limitations of .... 255
Wattless Current .......... 159
of Distribution .......18 Waves, Fundamental and Harmonic ... 112
... 135 Wire Table ........ ..
ter . . . . . . . . . . 378
. 392 Wooden Moulding : .......
. . 243
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