Comparative tests of induction wattmeters . m^BHHHll ? \ ,-.:. -1 i Duncan Induction Wattmeter Type A. Data showing the effect of change of load at normalvoltage and frequency, and 75^ power = voltsTemperature = ° factor = .727Frequency = 60 cycles/sec urrent Watt-hoursmeasured Watt-hoursregistered registered 99 81 66 49 32 25 20 13 7

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Keywords: ., bookcentury1900, bookdecade1900, bookidcomparativet, bookyear1907