Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 371
f the rotor. III. The Rotary Field in a Two-phase Motor. The armatures of machines which generate two-phase alternating currentcontain two separate windings, or sets of coils, displaced from each otherby 90°, the pole-pitch being considered 180°. When the coil-sides of onewinding are situated under…
Electrical engineering
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