Dependence of magnetic hysteresis upon wave form (1909)
National Bureau of Standards · leaf 10
and this is applied as a correc-tion to the measured watts. These corrections are never more thana few per cent. The measurement of the maximum value of the magnetic flux,where the wave form is unknown, is not easy, and required the useof special apparatus, a description of which has already been… … Ammeter Fig. 3.—Diagram of Connections. tive half waves are alike, as in the present case. The maximumvalue of the flux is given b} the average value of the induced emf.during the half cycle beginning with the zero value. The averagevalue of the emf. is measured by connecting the secondary…
Measurements and use of instruments · Electrical engineering · magnetism/ B8000 Power systems and applications
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