Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 376
oil has several taps brought out to a commutating switch,as shown in Fig. 31. The apparatus is arranged so that the primary canbe reversed, and therefore be used to reduce as well as to raise the voltageof the line. It is evident from an observation of the diagram that if twoof the segments… … Fig. 33. this reactance preventing any abnormal local flow of current during thetime that the two parts of the switch-blade are connected to adjacent seg-ments. The width of each half of the switch-arm must of necessity be lessthan that of the space or division between the contacts or segments. As…
Electrical engineering
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