Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 227
the growth of the field to be gradual, it is anadvantage to apply the full p.d. of the mains at the first moment so as tohasten the growth of the flux as much as possible. These disadvantages are overcome in the arrangement shown in Fig. 195,in which the field circuit is connected at once to the… … short one, moves over the contacts of the starting resistance. This arrange-ment does not give quite so sparkless a break as that shown in Fig. 193.since, at the moment of switching off,.the field current is suppUed by thearmature and, having to pass through the starting resistance, is…
Electrical engineering
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