Determination of current and candle power curves of the alternating current arc under impressed voltage of various wave forms . urve shows the relation ofthe candle power of the lamp and the voltage impressed 20 upon it. From this curve and the data from v/hioh it isconstructed, the ujiifomiity and consistency of the var-iations are very evident. That is, for a given im-pressed voltage, the pov/er of the is con-stant under normal conditions. 31 ; OF THE STxJDaPvD L^^iP. Standard lamp used #E30, 16 , at 102 volts, position 1. £ Standard to Screen Centimeters. 12
Determination of current and candle power curves of the alternating current arc under impressed voltage of various wave forms . urve shows the relation ofthe candle power of the lamp and the voltage impressed 20 upon it. From this curve and the data from v/hioh it isconstructed, the ujiifomiity and consistency of the var-iations are very evident. That is, for a given im-pressed voltage, the pov/er of the is con-stant under normal conditions. 31 ; OF THE STxJDaPvD L^^iP. Standard lamp used #E30, 16 , at 102 volts, position 1. £ Standard to Screen Centimeters. 12 3 4 5 Average 75 80 85 90 95 100 105 110 115 Distance from screen to lamp laeing calibrated equals 250 Centimeters - Distance standard to 32 THE ARC FROM A PEAEED WixVE. A peaked pressure wave, because of its applica-bility to systems in v/hicli transformers must be used,should be very suitable to arc lighting systems on uhiohthe distance of transmission is comparatively , it would be expected that on account of thegreat variation in the instantaneous values of the volt-age, the variation of the light given out by an arc oper-ated on such a wave v/ould be more noticeable than on aflat top wave. It was found by operating the arc under test inthis Work from a generator giving a wave form which wasvery peaked, that the most satisfactory results were ob-tained with regard to regulation and steadiness of thearc. The instantaneous values of the candle power ofthe arc at different positions on the wave seem to begoverned to a great extent by the action of the distinct v/ave fo
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Keywords: ., bookcentury1900, bookdecade1900, bookiddeterminatio, bookyear1905
