Theory and calculation of alternating current phenomena . 196 ALTERNATING-CURRENT PHENOMENA by them are circles, and are shown in Fig. 110, with the pointcorresponding to non-inductive load marked. The part of thelocus corresponding to a lagging secondary current is shownin thick full lines, and the part corresponding to leading currentin thin full lines. 147. This diagram represents the condition of constantsecondary generated , El, that is, corresponding to a con-stant maximum magnetic flux. By changing all the quantities proportionally from the dia-gram of Fig. 110, the diagrams for t
Theory and calculation of alternating current phenomena . 196 ALTERNATING-CURRENT PHENOMENA by them are circles, and are shown in Fig. 110, with the pointcorresponding to non-inductive load marked. The part of thelocus corresponding to a lagging secondary current is shownin thick full lines, and the part corresponding to leading currentin thin full lines. 147. This diagram represents the condition of constantsecondary generated , El, that is, corresponding to a con-stant maximum magnetic flux. By changing all the quantities proportionally from the dia-gram of Fig. 110, the diagrams for the constant primary im-. FiG. 113. pressed (Fig. Ill), and for constant secondary terminalvoltage (Fig. 112), are derived. In these cases, the locus givescurves of higher order. Fig. 113 gives the locus of the various quantities when theload is changed from full-load, /i = 60 amp. in a non-inductivesecondary external circuit, to no-load or open-circuit: (a) By increase of secondary current; (6) by increase ofsecondary inductive resistance; (c) by increase of secondarycondensive reactance. As shown in (a), the locus of the secondary terminal voltage,El, and thus of E^, etc., are straight lines; and in (&) and (c),parts of one and the same circle; (a) is shown in full lines, ih) inheavy full lines, and (c) in light full lines. This diagram corre-sponds to constant maximum magnetic flux; that is, to constantsecondary generated The diagrams representing constant ALTERNATING-CURRENT TRANSFORMER 197 primary impressed and constant secondary terminalvoltage can be derived from the above by pr
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