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 43
Сторінка 177
... tube between the secondary circuit and the ground . When the potential rises above a cer- tain value , it produces current enough through the magnet to cause it to operate a mechanism that grounds the secondary circuit . GROUND www 100 ...
... tube between the secondary circuit and the ground . When the potential rises above a cer- tain value , it produces current enough through the magnet to cause it to operate a mechanism that grounds the secondary circuit . GROUND www 100 ...
Сторінка 180
... tube or plug of porcelain which is easily inserted and withdrawn through a hole in the box in order to facilitate the inspection or renewal of a fuse . Fuse - blocks are made either double- or single - pole as repre- sented in the two ...
... tube or plug of porcelain which is easily inserted and withdrawn through a hole in the box in order to facilitate the inspection or renewal of a fuse . Fuse - blocks are made either double- or single - pole as repre- sented in the two ...
Сторінка 239
... . Without such protection the joints may be made by slipping the ends of the wire into an oval aluminum tube about nine inches long , which is then twisted about two and a half turns , with a pair of clamps similar OVERHEAD CONDUCTORS .
... . Without such protection the joints may be made by slipping the ends of the wire into an oval aluminum tube about nine inches long , which is then twisted about two and a half turns , with a pair of clamps similar OVERHEAD CONDUCTORS .
Сторінка 262
... tube or conduit , and must be particularly strong in order to withstand the severe con- ditions to which it is exposed . In some instances , especially in Europe , iron - 262 ELECTRIC LIGHTING . CHAPTER XIII UNDERGROUND ELECTRICAL ...
... tube or conduit , and must be particularly strong in order to withstand the severe con- ditions to which it is exposed . In some instances , especially in Europe , iron - 262 ELECTRIC LIGHTING . CHAPTER XIII UNDERGROUND ELECTRICAL ...
Сторінка 263
... Tube Systems . 13. Crompton and other naked Conductor Systems Wrought Iron or Steel Pipes , similar to gas or steam pipes with screw or other connections , is the strongest and one of the most satisfactory forms of conduit ; and it has ...
... Tube Systems . 13. Crompton and other naked Conductor Systems Wrought Iron or Steel Pipes , similar to gas or steam pipes with screw or other connections , is the strongest and one of the most satisfactory forms of conduit ; and it has ...
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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.