Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 386
em. Thisdecrease of rotor speed is known as the slip. Under ordinary conditions theresistance of the rotor coils is so small that a very small e.m.f., and there-fore a very small slip, is sufficient to produce the necessary current. Theslip, that is, the difference between the speeds of field and… … Fig. 383 Fig. 384 frequencies commonly used. To ensure a steady illumination without anyappreciable flicker, the frequency.is generally about 50 per second. Atwo-pole motor driven from these mains would have a speed of nearly3000 revolutions per minute. In systems where the load consists…
Electrical engineering
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