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 341
ith the transfer switch that one pair after the other can be thrownin circuit with the galvanometer ; and it is always well to take a deflectionfirst with R, then again after taking a deflection from the armature. The leads a and ^ must be pressed on the commutator directly at thebrush contacts,… … ARMATURE FAULTS. 329
Electrical engineering
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