The impedance tensor of the general machine

TWENTY years ago, Kron published the first part of his pioneer work on the application of tensors to the analysis of rotating electric machinery.1 Since that time, many valuable studies
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have been made which firmly establish tensor methods as an extraordinarily powerful method for analyzing the performance of electric machines and other complicated physical networks. With the aid of this tool, the engineer can solve intricate network problems in routine manner, thereby obtaining solutions directly.