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
... position of each element with reference to the others . The entire subject of electric lighting naturally divides itself into two parts ; one relating to the generating - plant , and the other covering the distributing conductors ...
... position of each element with reference to the others . The entire subject of electric lighting naturally divides itself into two parts ; one relating to the generating - plant , and the other covering the distributing conductors ...
Сторінка 24
... position ; the connections to the rest of the circuit are then to be made . Contact is to be made at the key , noting the time . The current is to be allowed to pass for not less than half an hour , and the time of breaking contact ...
... position ; the connections to the rest of the circuit are then to be made . Contact is to be made at the key , noting the time . The current is to be allowed to pass for not less than half an hour , and the time of breaking contact ...
Сторінка 30
... position . The wires required to feed an incandescent lamp are small , and can be easily placed in fixtures , mouldings , etc. , and thus con- cealed . The arc light , on the other hand , has the advantage of being simpler and cheaper ...
... position . The wires required to feed an incandescent lamp are small , and can be easily placed in fixtures , mouldings , etc. , and thus con- cealed . The arc light , on the other hand , has the advantage of being simpler and cheaper ...
Сторінка 42
... position of the station . In either case the ideal arrangement would , of course , be that in which the district was a perfect circle , with the station located at the center . Theo- retically , the station should be located at what ...
... position of the station . In either case the ideal arrangement would , of course , be that in which the district was a perfect circle , with the station located at the center . Theo- retically , the station should be located at what ...
Сторінка 43
... position , irrespective of the size , shape , and position of the lighting dis- trict , within reasonable limits . This applies to alternating in- candescent lighting and to series arc lighting , or to any other system using currents of ...
... position , irrespective of the size , shape , and position of the lighting dis- trict , within reasonable limits . This applies to alternating in- candescent lighting and to series arc lighting , or to any other system using currents of ...
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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.