Comparative tests of induction wattmeters . Schaeffer Induction Vfattmeter Type E. Data showlngthe effect of change of load at normalvoljsage and frequency, and unity power = voltsTemperature = ^F. ^Power factor - ,99Frequency = 60 cycles/sec. Current Watt-hoursmeasured Y^att-hoursregistered registered Schaeffer Induction Wattmeter Type E. Data showing the effect of change of

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Comparative tests of induction wattmeters . Schaeffer Induction Vfattmeter Type E. Data showlngthe effect of change of load at normalvoljsage and frequency, and unity power = voltsTemperature = ^F. ^Power factor - ,99Frequency = 60 cycles/sec. Current Watt-hoursmeasured Y^att-hoursregistered registered Schaeffer Induction Wattmeter Type E. Data showing the effect of change of load at normalfrequency, \mity power factor, and 75^ normal = voltsTemperature = factor = .99Frequency = 60 cycles/sec Current V/att-hoursmeasured 17att-hoursregistered registered 10 ? m mmtw^amam V -- X ,: - J ;^ <\ . JJj£l-tiB:- Schaeffer Induction \7attmeter Type E. Data showing the effect of change of load at normalfrequency, imity power factor, and 90/^ normal = voltsTemperature = ^?.Power factor = .99Frequency = 60 cycles/sec. Current • Watt-hoursmeasured Y/att-hoursregistered registered 122:. 3 22.

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Keywords: ., bookcentury1900, bookdecade1900, bookidcomparativet, bookyear1907