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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Сторінка
... LAMPS . 329 CHAPTER XVI . INTERIOR WIRING 371 CHAPTER XVII . INCANDESCENT LAMPS 395 CHAPTER XVIII . LAMPS NOT EMPLOYING CARBON 427 ELECTRIC METERS CHAPTER XIX . 432 APPENDIX I. NATIONAL ELECTRIC CODE 451 APPENDIX II . REPORT OF THE ...
... LAMPS . 329 CHAPTER XVI . INTERIOR WIRING 371 CHAPTER XVII . INCANDESCENT LAMPS 395 CHAPTER XVIII . LAMPS NOT EMPLOYING CARBON 427 ELECTRIC METERS CHAPTER XIX . 432 APPENDIX I. NATIONAL ELECTRIC CODE 451 APPENDIX II . REPORT OF THE ...
Сторінка 17
... lamps replaced by groups in parallel . 5. Direct current converter systems for incandescent or arc lighting . Motor - dynamos in series , lamps supplied by secondary circuits . Alternating Current . 6 , 7 , 8 , 9 , and 10. Alternating ...
... lamps replaced by groups in parallel . 5. Direct current converter systems for incandescent or arc lighting . Motor - dynamos in series , lamps supplied by secondary circuits . Alternating Current . 6 , 7 , 8 , 9 , and 10. Alternating ...
Сторінка 19
... lamps on the circuit . For example , sixty lamps are commonly placed upon a single arc - lighting circuit ; and since each lamp ( open arc ) requires about fifty volts , it follows that the total pressure approximates 3,000 volts . The ...
... lamps on the circuit . For example , sixty lamps are commonly placed upon a single arc - lighting circuit ; and since each lamp ( open arc ) requires about fifty volts , it follows that the total pressure approximates 3,000 volts . The ...
Сторінка 24
... lamps on any loop may be increased or decreased , since the current is kept constant by a regulator on the dynamo ; and it is quite immaterial where the resistance is introduced in a series circuit . In fact , any or all of the lamps ...
... lamps on any loop may be increased or decreased , since the current is kept constant by a regulator on the dynamo ; and it is quite immaterial where the resistance is introduced in a series circuit . In fact , any or all of the lamps ...
Сторінка 25
... lamp when the filament is broken . One type of this device is called a " film cut- out , " and consists of a thin ... lamps are made of various sizes , requiring about one volt per candle - power . The practice with this system is to ...
... lamp when the filament is broken . One type of this device is called a " film cut- out , " and consists of a thin ... lamps are made of various sizes , requiring about one volt per candle - power . The practice with this system is to ...
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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.