Comparative tests of induction wattmeters . load. Westinghouse Induction V/attraeter Type showing the effect of change of voltage at 20/? TeraperatTire = - °F. Power factor = .99Frequency = 60 cycles/sec. Voltage Registered UT^^. Westinghouse Induction Wattmeter Type C. Data showing the effect ofchange of frequency at150^ load. Potential = - voltsTemperature = - ° .99 Current Frequency Registered 40 60 80 RiSSK fe _ J5 1 .:^*^iS is - |i.

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Comparative tests of induction wattmeters . load. Westinghouse Induction V/attraeter Type showing the effect of change of voltage at 20/? TeraperatTire = - °F. Power factor = .99Frequency = 60 cycles/sec. Voltage Registered UT^^. Westinghouse Induction Wattmeter Type C. Data showing the effect ofchange of frequency at150^ load. Potential = - voltsTemperature = - ° .99 Current Frequency Registered 40 60 80 RiSSK fe _ J5 1 .:^*^iS is - |: : p^:--}-?•?:--??; 1 1 ? z^ T-~ ~ %r- 1~- T^~ i iL T^-- ^r L i 1 -t- ^ r,,-: II illf I sill ?~-i Vr-1 pa^^/sy^s;^ oj^ Westinghouse Inductioii Wattmeter Type C. Data showing the effect of change of frequency at125?^ load. Potentiaa = - voltsTemperature = - factor = .99 quency Registered 40 60 80 mttclMwn ifiEi nj -; ^ 1 - ; ?:: _: _. _. — J^^-^^^^i^ % Westinghouse Induction Tiattmeter TypeC. Data shOTT-ing the effect of change of frequency at100?^ load. Potential = - voltsTemperature = G2»2 - factor = .99 ef Frequency Registered 40 60 SO ,^

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Keywords: ., bookcentury1900, bookdecade1900, bookidcomparativet, bookyear1907