Comparative tests of induction wattmeters . : \ _ \ I 1 - Off ?^--^-5fe. Oir Fort Wayne Induction Wattmeter Type W. Data showing the effect of change of load at normalfrequency, unity power factor and 110/^ normal = 121 voltsTemperature = 62,3*^?.ppwer factor - ,99Frequency = 60 cycles/sec. Current Watt-hoursmeasured Watt. regii -hours stered registered 153 128 98,3 99 73 49 40 29 ? 19 9 Port Wasme Induction Wattmeter Tjrpfe W, Data showing t

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Comparative tests of induction wattmeters . : \ _ \ I 1 - Off ?^--^-5fe. Oir Fort Wayne Induction Wattmeter Type W. Data showing the effect of change of load at normalfrequency, unity power factor and 110/^ normal = 121 voltsTemperature = 62,3*^?.ppwer factor - ,99Frequency = 60 cycles/sec. Current Watt-hoursmeasured Watt. regii -hours stered registered 153 128 98,3 99 73 49 40 29 ? 19 9 Port Wasme Induction Wattmeter Tjrpfe W, Data showing the effect of change of load at normalvoltage, unity power factor, and 66% nomial frequency^Potential = 113,2 voltsTemperature = ^ factor = ,99Frequency = 40 cycles/sec. Current Eatt-hoursmeasured Watt-hoursregistered registered 135 iia 89 ; 65 44 34 25 16 7

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Keywords: ., bookcentury1900, bookdecade1900, bookidcomparativet, bookyear1907