Heavy Electrical EngineeringConstable, 1908 - 338 стор. |
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admission pressure alternating current aluminium amount amperes annum Average Speed axles boiler boiler house calorific value cent Central London Railway chimney coal condenser conductor consideration continuous current motor continuous current system copper core curves in Fig Duration of Stop electrical engineering employed engine room estimate exhaust pressure friction gear given input insulation kg per hp kg per sq kilometer Kilowatt Hours km per hour latent heat Load Factor loss meters million kw hr Millions of Kw obtained operation overall efficiency piston engines plant Pressure in Kg railway electrification rate of acceleration rated capacity rated load rated output saturated steam Schedule Speed Siemens-Schuckert single phase motor single phase system Speed in Km sq cm sq dm station steam consumption steam piping steam turbines sub-stations superheat Table Tons of Steam Total cost tower traction tractive resistance transmission line various voltage volts watt hour weight
Популярні уривки
Сторінка 214 - While the laws of magnetic hysteresis are fairly well understood, and the magnitude of the effect known, the phenomenon of dielectric hysteresis is still almost entirely unknown. "It is quite probable that the loss of power in the dielectric in an alternating electrostatic field consists of two distinctly different components, of which the one is directly proportional to the frequency...
Сторінка ii - Thoroughly up-to-date, and deals with the most recent practice. We can heartily commend it to all who are interested in the development of electric traction, although the names of the Authors form perhaps the best commendation." Electric Railways : Theoretically and Practically Treated. By SIDNEY W. ASHE, BS, Late Instructor in Electric Traction for the Brooklyn Rapid Transit Co., and JD KEILEY, Assistant Electrical Engineer, NYC and HRRR With numerous Diagrams. Demy8vo. ios.6d.net. A work for the...
Сторінка 288 - The very much reduced output of both generators and motors, if operated single-phase; the reduced efficiency; the impaired regulation; the increased heating and less stability of single-phase motors and generators, connected with the increased cost resulting from the greater amount of material required; these form the main reasons which induce me to call the recent attempts which have been made in the utilization of single-phase currents, a forced idea.
Сторінка viii - The natural idea may be likened to a plant growing under favourable conditions and adapting itself to its environment ; the forced idea may be likened to a plant raised in a hot-house, with the exclusion of such conditions as might have a tendency to prevent its development. The natural idea will survive ; the forced idea will go to the wall ; but it is...