Convention, Volume 21 |
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Halaman 47
... IRON PIPE 70 80 90 CEMENT LINED PIPE 18 16 14 12 MC ROY TERRA COTTA TILE 10 CAMP TERRA COTTA TILE 8 MC ROY TERRA COTTA TILE 2 DUCT CAMP TERRA COTTA TILE 40 50 Number of ducts 60 70 08 80 90 6 2 mous item of expense since underground ...
... IRON PIPE 70 80 90 CEMENT LINED PIPE 18 16 14 12 MC ROY TERRA COTTA TILE 10 CAMP TERRA COTTA TILE 8 MC ROY TERRA COTTA TILE 2 DUCT CAMP TERRA COTTA TILE 40 50 Number of ducts 60 70 08 80 90 6 2 mous item of expense since underground ...
Halaman 48
... iron pipe , the upper curve . The lower curves are for Camp & McRoy terra - cotta duct . The upper curves represent three - inch ducts and the two lower ones two - inch ducts . In the choice of duct and insulation on con- ductors ...
... iron pipe , the upper curve . The lower curves are for Camp & McRoy terra - cotta duct . The upper curves represent three - inch ducts and the two lower ones two - inch ducts . In the choice of duct and insulation on con- ductors ...
Halaman 97
... system , and the poles hardly paid for the labor required for their removal . The 104 towers - one of the heaviest of all the original expenses - had to be sold as scrap iron . A DESTRUCTION OF VALUES It is clear that a loss 8 97.
... system , and the poles hardly paid for the labor required for their removal . The 104 towers - one of the heaviest of all the original expenses - had to be sold as scrap iron . A DESTRUCTION OF VALUES It is clear that a loss 8 97.
Halaman 145
... iron loss , and that this is interdependent with the regulation or drop . If we can increase the drop , we can decrease the iron loss , and thereby greatly increase the average efficiency . Having provided against any interference with ...
... iron loss , and that this is interdependent with the regulation or drop . If we can increase the drop , we can decrease the iron loss , and thereby greatly increase the average efficiency . Having provided against any interference with ...
Halaman 148
... iron ... No. 1 . Per cent . No. 2 . Per cent . No. 3 . Per cent . Per cent . 24 8 ΙΟ ΙΟ 2 2 2 2 I I I I .. .23 6 I 2 2.7 I · 5 copper Total loss at maximum station load ..... Efficiency at maximum station load ... . . . . 27 13.93 20 ...
... iron ... No. 1 . Per cent . No. 2 . Per cent . No. 3 . Per cent . Per cent . 24 8 ΙΟ ΙΟ 2 2 2 2 I I I I .. .23 6 I 2 2.7 I · 5 copper Total loss at maximum station load ..... Efficiency at maximum station load ... . . . . 27 13.93 20 ...
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alternating current alternating-current motors alternating-current station alternating-current system amperes apparatus arc lamps average AYER candle power capacity cent central station central-station charge circular mils coal Condensing connected convention copper core loss cost curve customers demand meter Detroit direct current direct-current system disruptive discharges distribution system district dynamos economical efficiency Electric Company Electric Light Association Electric Light Company electric-lighting engines executive committee expenses feeder Ferguson figures horse power increase installed interest investment iron loss kilowatt kilowatt-hour Lachine Rapids Light and Power lightning arrester load-factor low-tension mains manufacturer maximum load meeting municipal ownership National Electric Light operation output paper Power Company PRESIDENT public lighting question regulation rotary transformers SAMUEL INSULL selling single-phase steam street sub-stations three-phase three-wire system tion to-day trans unit volts Wagner WALBANK water-power plant watt-hours watts Wright demand