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 2D. Van Nostrand Company, 1901 |
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Результати 1-5 із 67
Сторінка 17
... 2. Series incandescent lighting . About 10 amperes and 10 to 30 volts per lamp ... Two - wire incandescent and arc lighting ( about 110 or 220 volts ) . 12 ... Phase Alternating Current . 15. Low tension incandescent and SERIES SYSTEMS ...
... 2. Series incandescent lighting . About 10 amperes and 10 to 30 volts per lamp ... Two - wire incandescent and arc lighting ( about 110 or 220 volts ) . 12 ... Phase Alternating Current . 15. Low tension incandescent and SERIES SYSTEMS ...
Сторінка 18
... Phase Alternating Current . 15. Low tension incandescent and arc lighting ... two- and three - wire secondary circuits at about 50 , 100 , or 200 volts ... Two - phase system . 19. Three - phase system . 20. Monocyclic system . For the ...
... Phase Alternating Current . 15. Low tension incandescent and arc lighting ... two- and three - wire secondary circuits at about 50 , 100 , or 200 volts ... Two - phase system . 19. Three - phase system . 20. Monocyclic system . For the ...
Сторінка 97
... two - phase alternating currents respectively . The actions of these machines are brought out in a paper by Professor R. B. Owens , and in the discussion which followed . * Direct Current Transformer Systems of Distribution . The usual ...
... two - phase alternating currents respectively . The actions of these machines are brought out in a paper by Professor R. B. Owens , and in the discussion which followed . * Direct Current Transformer Systems of Distribution . The usual ...
Сторінка 102
... two- or three - phase , from the generating plant to stations at which it is transformed into direct currents by means of rotary converters , and distributed for lighting and other purposes . Such systems will be described after the ...
... two- or three - phase , from the generating plant to stations at which it is transformed into direct currents by means of rotary converters , and distributed for lighting and other purposes . Such systems will be described after the ...
Сторінка 111
... Two - phase and three - phase alternating current systems are often employed to supply incandescent and arc lights ; but they are only advantageous for operating motors or rotary converters , and so far as lamps are concerned , they are ...
... Two - phase and three - phase alternating current systems are often employed to supply incandescent and arc lights ; but they are only advantageous for operating motors or rotary converters , and so far as lamps are concerned , they are ...
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Electric Lighting: A Practical Exposition of the Art, for the Use of ... Francis Bacon Crocker Попередній перегляд недоступний - 2016 |
Загальні терміни та фрази
alternating current amperes apparatus arc lamps armature arrangement bulb bus bars cable candle-power capacity carbon cent circular mils conductors conduit connected constant current constant potential copper loss core cross-arm cross-section cut-out device diameter difference direct current distribution drop dynamo effect efficiency electric lighting electrical conductors employed energy equal fact feeders feeding-points filament flow frequency full load fuse globe ground heat hence incandescent lamps inch inclosed arc increase inductance insulation iron joint latter length less machines magnetic maximum mechanical metal meter method motor number of lamps ohms one-half open arc operation ordinary parallel phase pipe placed pole polyphase porcelain practically pressure primary produced reactance regulation represented in Fig resistance rheostat rotary rotary converters secondary circuit shown in Fig shunt side single-phase socket supplied switch temperature terminal three-phase three-wire system tion transformers tube two-phase two-wire two-wire circuit usually voltage volts wattmeter watts winding
Популярні уривки
Сторінка 460 - The lower limit is specified for rubber-covered wires to prevent gradual deterioration of the high insulations by the heat of the wires, but not from fear of igniting the insulation. The question of drop is not taken into consideration in the above tables.
Сторінка 11 - W, we find that the most economical area of conductor is that for which the annual cost of energy wasted is equal to the annual interest on that portion of the capital outlay which can be considered to be proportional to the weight of metal used. Professor George Forbes, in his Cantor Lecture, on " The Distribution of Electricity...
Сторінка 459 - Must be so placed in wet places that an air space will be left between conductors and pipes in crossing, and the former must be run in such a way that they cannot come in contact with the pipe accidentally. Wires should be run over, rather than under, pipes upon which moisture is likely to gather or which, by leaking, might cause trouble on a circuit.