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 4
... amount of light . 3. It can be lighted without the aid of matches , which is not only a great convenience , but also largely reduces the danger of fire . 4. The incandescent light is much steadier than gas light , and does not flicker ...
... amount of light . 3. It can be lighted without the aid of matches , which is not only a great convenience , but also largely reduces the danger of fire . 4. The incandescent light is much steadier than gas light , and does not flicker ...
Сторінка 5
... amounts to very little , because it is rarely desirable to turn down a light , and ninety- nine times out of a hundred when it is done it is to save the trouble of relighting . To avoid danger of fire , and for other reasons , it is ...
... amounts to very little , because it is rarely desirable to turn down a light , and ninety- nine times out of a hundred when it is done it is to save the trouble of relighting . To avoid danger of fire , and for other reasons , it is ...
Сторінка 15
... Stanley , and others . The great saving in the amount of copper required for the distributing conductors in this system caused it to be rapidly and widely adopted . In the meantime , the HISTORY OF ELECTRIC LIGHTING . 15.
... Stanley , and others . The great saving in the amount of copper required for the distributing conductors in this system caused it to be rapidly and widely adopted . In the meantime , the HISTORY OF ELECTRIC LIGHTING . 15.
Сторінка 16
... amount of copper required for low - tension circuits . Incandescent lamps have gradually been improved in cheapness and efficiency , and the mechanism of arc lamps has been perfected from time to time . Great improvements have been made ...
... amount of copper required for low - tension circuits . Incandescent lamps have gradually been improved in cheapness and efficiency , and the mechanism of arc lamps has been perfected from time to time . Great improvements have been made ...
Сторінка 18
... amount of choice in the selec- tions of units , standards , terms , and definitions , which make it desirable for each author to specify exactly which of these he employs ; otherwise , considerable confusion and uncertainty might arise ...
... amount of choice in the selec- tions of units , standards , terms , and definitions , which make it desirable for each author to specify exactly which of these he employs ; otherwise , considerable confusion and uncertainty might arise ...
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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
Популярні уривки
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.