The electric motor and the transmission of power (1906)
Houston, Edwin J. (Edwin James), 1847-1914, Kennelly, Arthur E. (Arthur Edwin), 1861-1939, joint author · New York : McGraw Pub. Co. · leaf 293
is ar-ranged with four poles and four coils, asshown in Fig;. 76. Let coils 1 and 3, bejoined together in series in one circuit, andcoils 2 and 4, be also joined together inseries in another circuit; moreover, letthese two circuits be connected to the twowindings of a diphaser; then, when…
Electric motors
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