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 11-15 із 100
Сторінка 110
... transformers , consisting merely of two or more coils of wire wound upon an iron core . Since there are no moving parts , the attention demanded and the likelihood of the apparatus getting out of order are small . This 110 ELECTRIC ...
... transformers , consisting merely of two or more coils of wire wound upon an iron core . Since there are no moving parts , the attention demanded and the likelihood of the apparatus getting out of order are small . This 110 ELECTRIC ...
Сторінка 148
... the secondary circuit , in order to give them full torque when starting , and to prevent a great rush of current at that time . CHAPTER IX . TRANSFORMERS . A TRANSFORMER consists essentially of 148 ELECTRIC LIGHTING .
... the secondary circuit , in order to give them full torque when starting , and to prevent a great rush of current at that time . CHAPTER IX . TRANSFORMERS . A TRANSFORMER consists essentially of 148 ELECTRIC LIGHTING .
Сторінка 149
... TRANSFORMERS . A TRANSFORMER consists essentially of two separate coils of insulated wire wound or placed upon an iron core . One of these coils , called the primary , receives alternating current from some source ; and the other coil ...
... TRANSFORMERS . A TRANSFORMER consists essentially of two separate coils of insulated wire wound or placed upon an iron core . One of these coils , called the primary , receives alternating current from some source ; and the other coil ...
Сторінка 150
... transformer with the casing removed . In these and other types of constant potential transformers the object is to reduce the magnetic leakage to a mini- mum , by so arranging the coils and magnetic circuit that practically all the flux ...
... transformer with the casing removed . In these and other types of constant potential transformers the object is to reduce the magnetic leakage to a mini- mum , by so arranging the coils and magnetic circuit that practically all the flux ...
Сторінка 151
... Transformer Protective Devices . The coils themselves consist of ordinary cotton - covered round or flat copper wire . These are wound and insulated separately ; the proper number and 3 arrangement of ... Transformer ,. TRANSFORMERS . 151.
... Transformer Protective Devices . The coils themselves consist of ordinary cotton - covered round or flat copper wire . These are wound and insulated separately ; the proper number and 3 arrangement of ... Transformer ,. TRANSFORMERS . 151.
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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 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 operation ordinary parallel phase pipe placed pole polyphase polyphase systems porcelain practically pressure primary produced reactance regulation represented in Fig resistance rheostat rotary rotary converters secondary circuit secondary coils 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.