Distributing system and lampsD. Van Nostrand, 1901 - 505 стор. |
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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 dynamo effect efficiency electric lighting electrical conductors employed energy equal fact feeders feeding-points filament 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 polyphase systems porcelain practically pressure primary reactance regulation represented in Fig resistance rheostat rotary rotary converters secondary circuit secondary coils self-induction 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