Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 347
nerally used for thispurpose, as shown in Figs. 344 and 345. In the first figure the lamps are con-nected across the terminals which will be connected by the switch. When thespeed of the machine is almost correct, the lamps will slowly alternatebetween darkness and brightness. The switch should be… … + ^ ^ 5 > /> c / +/i k Fig- 344 Fig- 345 In the arrangement shown in Fig. 345 the correct moment is indicatedby the lamps burning with their maximum brilliancy. The plus and minussigns indicate the state of affairs at the correct moment for closing theswitch, and it is evident that, so far as…
Electrical engineering
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