In this note it is explained why there is no generally valid relationship between It*GI and the alternating torque of an a.c. machine in steady state; however, it is shown that this alternating torque can systematically be derived from the complex quantity ItGI.
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References
1.
HancockN. N., “Im It*GIT Int. J. Elect. Enging. Educ., 18, pp. 79–84 (1981).