Electrical measuring instruments : grand prize Louisiana Purchase Exposition, St. Louis, 1904 (1904)
Leeds and Northrup Company · leaf 44
otive force. Curve III is the magnetising current of the transformer; that is, theprimary current with no load on the secondary. Ripples on this curveare due to the harmonics in the impressed electromotive force. Curve W is the magnetic induction. Ripples along the sides of thiscurve correspond to…