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 343
Fig. 21. Alternate bar test for shortcircuit between sections. … Fig. 22. Test for ground in armaturecoils. In the above the brushes should 1 - dynamo is electrically centred, putdown brushes 1 and 2, and take volt-age of machine ; put down brush 3,and lift 1, take voltage again ; putdown brush 4 and lift 2, again tak-ing voltage ; repeat the operationwith all…
Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
