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Published by the McGraw-Hill Book Company New York
Successors to the Book Departments of the McGraw Publishing Company Hill Publishing Company
Electrical World The Engineering and Mining Journal The Engineering Record Power and The Engineer Electric Railway Journal American Machinist
_By_ ALTON D. ADAMS, A.M. MEMBER AMERICAN INSTITUTE OF ELECTRICAL ENGINEERS
Copyrighted, 1906, by the McGRAW PUBLISHING COMPANY NEW YORK
II. UTILITY OF WATER-POWER IN ELECTRICAL SUPPLY 10
III. COST OF CONDUCTORS FOR ELECTRIC-POWER TRANSMISSION 19
IV. ADVANTAGES OF THE CONTINUOUS AND ALTERNATING CURRENT 31
V. THE PHYSICAL LIMITS OF ELECTRIC-POWER TRANSMISSION 44
VI. DEVELOPMENT OF WATER-POWER FOR ELECTRIC STATIONS 51
VII. THE LOCATION OF ELECTRIC WATER-POWER STATIONS 64
VIII. DESIGN OF ELECTRIC WATER-POWER STATIONS 83
IX. ALTERNATORS FOR ELECTRICAL TRANSMISSION 103
X. TRANSFORMERS IN TRANSMISSION SYSTEMS 122
XI. SWITCHES, FUSES, AND CIRCUIT-BREAKERS 135
XIII. GUARD WIRES AND LIGHTNING ARRESTERS 168
XIV. ELECTRICAL TRANSMISSION UNDER LAND AND WATER 187
XVI. VOLTAGE AND LOSSES ON TRANSMISSION LINES 215
XVII. SELECTION OF TRANSMISSION CIRCUITS 233
XVIII. POLE LINES FOR POWER TRANSMISSION 246
XIX. ENTRIES FOR ELECTRIC TRANSMISSION LINES 261
XXI. INSULATORS FOR TRANSMISSION LINES 287
XXII. DESIGN OF INSULATOR PINS FOR TRANSMISSION LINES 298
Electrical supply from transmitted water-power is now distributed in more than fifty cities of North America. These include Mexico City, with a population of 402,000; Buffalo and San Francisco, with 352,387 and 342,782 respectively; Montreal, with 266,826, and Los Angeles, St. Paul, and Minneapolis, with populations that range between 100,000 and 200,000 each. North and south these cities extend from Quebec to Anderson, and from Seattle to Mexico City. East and west the chain of cities includes Portland, Springfield, Albany, Buffalo, Hamilton, Toronto, St. Paul, Butte, Salt Lake City, and San Francisco. To reach these cities the water-power is electrically transmitted, in many cases dozens, in a number of cases scores, and in one case more than two hundred miles. In the East, Canada is the site of the longest transmission, that from Shawinigan Falls to Montreal, a distance of eighty-five miles.