Convention, Volume 21;Volume 25 |
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Halaman 99
... curves are the curves of lamp efficiencies which secure minimum cost of light . For example , with lights costing sixteen cents and at a rate of six cents . per kilowatt hour , the curve shows that an efficiency of 2.9 watts per candle ...
... curves are the curves of lamp efficiencies which secure minimum cost of light . For example , with lights costing sixteen cents and at a rate of six cents . per kilowatt hour , the curve shows that an efficiency of 2.9 watts per candle ...
Halaman 385
... Curves From the individual life curves of each lot was plotted a curve showing the average value of each 0 1 2 10 3 4 5 6 7 8 9 10 11 12 13 14 15 HUNDRED HOURS 18 17 16 AVE . I.CP. 15.81 15 14 13 12 11 10 9 8 CANDLES 7 80 % FIG . 26 - LIFE ...
... Curves From the individual life curves of each lot was plotted a curve showing the average value of each 0 1 2 10 3 4 5 6 7 8 9 10 11 12 13 14 15 HUNDRED HOURS 18 17 16 AVE . I.CP. 15.81 15 14 13 12 11 10 9 8 CANDLES 7 80 % FIG . 26 - LIFE ...
Halaman 386
... curve of the lot will drop . This drop or rise is not accurately shown by the average curves , for if the irregular lamp burns out at , say , 450 hours , or mid- way between the 400 and 500 readings , the curve , to show the result ...
... curve of the lot will drop . This drop or rise is not accurately shown by the average curves , for if the irregular lamp burns out at , say , 450 hours , or mid- way between the 400 and 500 readings , the curve , to show the result ...
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Istilah dan frasa umum
80-per-cent limit amount AMPERES apparatus arc lamps armature average bill boiler candle-power capacity carbons central station central-station cents per kw-hour Chairman charge circuits Clear Outer coils committee consumer consumption CURVES OF LOT direct-current Doherty efficiency Electric Company Electric Light Company electromotive force expenses feet FERGUSON Figure Gas and Electric gas engine give heating Hemispherical Candle Power horizontal incandescent lamps inclosed increase induction motors INNER GLOBE installed kilowatt hour lamp renewals Light and Power lightning arresters load lower-efficiency lamps Luminous Intensity machine Mean Hemispherical Candle meter National Electric Light Nernst lamp Opalescent Inner operating phase photometer plant Pole Power Company PRESIDENT question rotary converters single-phase sixteen candle spherical candle power standard steam sumer supply system of rates three-phase tion transformers two-phase units voltage volts watts per candle Watts per Mean Willcox wires Wright demand