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 522
again divided into sections, but each sec-tion is supplied from its own separate feeder, the size of which may be socalculated as to keep a very even pressure at all points on the line,especiallyso if the trolley wire be not too small and the sections not too long. It isof course, subject to the… … [the system, as at d, there is a heavy grade or a heavy massing of cars, cross^connection can be made to the feeder c, either by switch or by permanenttie. Another method of tying that has been used in some localities is thatof connecting the ends of trolley sections together with a small copper…
Electrical engineering
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