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 1D. Van Nostrand Company, 1906 |
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Сторінка 13
... necessary elements , even though they may already exist . separately , is often a more important and difficult step in the creation of a new art than the invention of the individual parts , however essential each may be . In 1878 and ...
... necessary elements , even though they may already exist . separately , is often a more important and difficult step in the creation of a new art than the invention of the individual parts , however essential each may be . In 1878 and ...
Сторінка 14
... necessary elements for a successful use of the incandescent lamp , which elements had not been known or used . previously , although the system is apparently very simple . These essential elements are : First , a dynamo having an ...
... necessary elements for a successful use of the incandescent lamp , which elements had not been known or used . previously , although the system is apparently very simple . These essential elements are : First , a dynamo having an ...
Сторінка 15
... necessary to enable the use of reasonably high voltage , which greatly reduces the weight of copper required for the conductors , and a vacuum is required to prevent the destruction of the filament and the loss of heat by convection ...
... necessary to enable the use of reasonably high voltage , which greatly reduces the weight of copper required for the conductors , and a vacuum is required to prevent the destruction of the filament and the loss of heat by convection ...
Сторінка 19
... necessary or desir- able . It may be the duty of future electrical congresses to abolish units and terms which are found to be useless . In the present work it was thought best to put the various principles with the particular subject ...
... necessary or desir- able . It may be the duty of future electrical congresses to abolish units and terms which are found to be useless . In the present work it was thought best to put the various principles with the particular subject ...
Сторінка 23
... necessary for the practical application of the definitions of the ampere and volt hereinbefore given , and such specifications shall be the standard specifications herein mentioned . Approved July 12 , 1894 . The specifications ...
... necessary for the practical application of the definitions of the ampere and volt hereinbefore given , and such specifications shall be the standard specifications herein mentioned . Approved July 12 , 1894 . The specifications ...
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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 |
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alternating current amount ampere-hours ampere-turns amperes apparatus arc lamps armature core arrangement belt boiler booster brushes carbon cause cell cent centimeters centrifugal force charge circuit cloth coal coils commutator condensation conductors connected consists construction copper cut-off cylinder diameter direct direct current direct-current discharge dynamo effect efficiency Elec electric lighting electric-lighting electrolyte employed fact feet field-magnet flux density fly-wheel force fuel gas-engine governor heat hence incandescent lamps inch inductors insulation iron latter lines load machine machinery magnetic magnetic circuit mechanical mercurous sulphate motors multipolar obtained operated ordinary pipe piston plant plates pole-pieces poles practically pressure produced pulley represented in Fig resistance revolutions per minute ring shaft short-circuited shown in Fig shunt speed square steam steam-engine storage battery stroke sulphate supply surface switch temperature tion tubes turbine usually valve voltage voltmeter volts water-tube boilers weight wheel winding wire zinc sulphate
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Сторінка 22 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 10" units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grams in mass, of a constant cross-sectional area and of the length of 106.3 centimetres.
Сторінка 483 - Illustrated. 8vo, cloth. $2.00. Elements of Electric Lighting, including Electric Generation, Measurement, Storage, and Distribution. Tenth Edition, fully revised and new matter added. Illustrated. 8vo, cloth. $1.50. Power Transmitted by Electricity and Applied by the Electric Motor, including Electric Railway Construction.
Сторінка 23 - ... As a unit of electromotive force, the international volt, which is the electromotive force that, steadily applied to a conductor whose resistance is one international ohm, will produce a current of one international ampere...
Сторінка 483 - ABBOTT, AV The Electrical Transmission of Energy. A Manual for the Design of Electrical Circuits.