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 7
... - light companies . Fairly large installations properly designed and operated produce electrical energy at about 4 cents per K.W. - hour 8 CHAPTER II . HISTORY OF ELECTRIC LIGHTING . LIGHTNING INTRODUCTION . 7 PAGE INTRODUCTION I.
... - light companies . Fairly large installations properly designed and operated produce electrical energy at about 4 cents per K.W. - hour 8 CHAPTER II . HISTORY OF ELECTRIC LIGHTING . LIGHTNING INTRODUCTION . 7 PAGE INTRODUCTION I.
Сторінка 13
... operate a number of these lights on the same circuit success- fully was to connect them by wires in a simple series , so that the current flowed through them one after another . The arc formed at each lamp was necessarily of constant ...
... operate a number of these lights on the same circuit success- fully was to connect them by wires in a simple series , so that the current flowed through them one after another . The arc formed at each lamp was necessarily of constant ...
Сторінка 14
... operated in series on a single circuit . The success of this system was due to the fact that it included a complete set of apparatus ; that is , a dynamo having a current regulator , and arc lamps with differential coil regulators and ...
... operated in series on a single circuit . The success of this system was due to the fact that it included a complete set of apparatus ; that is , a dynamo having a current regulator , and arc lamps with differential coil regulators and ...
Сторінка 28
... operated by a company having no other business . From the central station a large number of electrical conductors run out in every direction . These conductors supply electric current to feed lamps for many different purposes , and for ...
... operated by a company having no other business . From the central station a large number of electrical conductors run out in every direction . These conductors supply electric current to feed lamps for many different purposes , and for ...
Сторінка 29
... operated by a private individual , company , or institution , and constitutes only a small and incidental part of its affairs . Light is supplied to the various buildings , or parts of the building , usually without attempting to make ...
... operated by a private individual , company , or institution , and constitutes only a small and incidental part of its affairs . Light is supplied to the various buildings , or parts of the building , usually without attempting to make ...
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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.