Electric Lighting: A Practical Exposition of the Art, for the Use of Engineers, Students, and Others Interested in the Installation Or Operation of Electrical Plants, Том 1Van Nostrand, 1896 |
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Сторінка 11
... efficiency direct- current generators of the present day . This invention was practically ignored until it was independently rediscovered by Gramme in 1870 . * The invention of Pacinotti had been merely a laboratory experi- ment ...
... efficiency direct- current generators of the present day . This invention was practically ignored until it was independently rediscovered by Gramme in 1870 . * The invention of Pacinotti had been merely a laboratory experi- ment ...
Сторінка 16
... efficiency , and the mechanism of arc lamps has been perfected from time to time . Great improvements have been made in the last few years in the construction of large direct - coupled steam- engines and multipolar dynamos for central ...
... efficiency , and the mechanism of arc lamps has been perfected from time to time . Great improvements have been made in the last few years in the construction of large direct - coupled steam- engines and multipolar dynamos for central ...
Сторінка 17
... efficiency . For further study of the general history of lighting , the reader is referred to the following : - Histoire du Luminaire depuis l'époque romaine jusqu'au XIX® . Siècle , par Henri - René D'Allemagne , Paris , 1891 . This is ...
... efficiency . For further study of the general history of lighting , the reader is referred to the following : - Histoire du Luminaire depuis l'époque romaine jusqu'au XIX® . Siècle , par Henri - René D'Allemagne , Paris , 1891 . This is ...
Сторінка 75
... ent method of generating electricity with the steam - engine and dynamo , there is a theoretical limitation to the efficiency of a heat - engine which is still more serious . The POSSIBLE SOURCES OF ELECTRICAL ENERGY . 75.
... ent method of generating electricity with the steam - engine and dynamo , there is a theoretical limitation to the efficiency of a heat - engine which is still more serious . The POSSIBLE SOURCES OF ELECTRICAL ENERGY . 75.
Сторінка 76
... efficiency of any heat - engine is expressed by the formula E T1 - T2 , in which 7 , is the initial absolute temperature and T T1 the final absolute temperature . This formula is derived from the second law of thermo - dynamics , and ...
... efficiency of any heat - engine is expressed by the formula E T1 - T2 , in which 7 , is the initial absolute temperature and T T1 the final absolute temperature . This formula is derived from the second law of thermo - dynamics , and ...
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Electric Lighting: A Practical Exposition of the Art, for the Use of ..., Том 2 Francis Bacon Crocker Попередній перегляд недоступний - 2016 |
Загальні терміни та фрази
accumulator action advantage alternating current ampere ampere turns ampere-hours apparatus arc lamps armature arrangement battery belt boiler brushes carbon cast iron cause cell cent central stations centrifugal centrifugal force charge circuit coal coils commutator condensation conductors connected considerable consists construction copper core cylinder diameter direct coupling direct current direct-current discharge dynamo effect efficiency Elec electric lighting electric-lighting plant Electrical Engineer employed fact feet field-magnet flux fly-wheel force gas-engine governor heat horse-power incandescent lamps increase inductors insulation iron isolated plants latter Lightning-Arrester load machine machinery magnetic mechanical mercurous sulphate motor objectionable obtained ordinary piston plates pole-pieces practically pressure produced pulley reduced resistance revolutions per minute shaft short circuit short-circuited shown in Fig speed square inch steam steam-engine stroke sufficient sulphate supply surface switch temperature tion tubes turbine usually valve voltage volts weight wheel winding wire zinc zinc sulphate
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