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 333
and therefore the efficiency will be but littleaffected by any error in the standards. No mechanical power measure-ments are made, and all measurements are electrical. Disadvantages. Requires two similar machines. Armature reactions are not alike in bothmachines. Leads are not alike. The iron… … EXCITERELDSOF MOTORS Fig. 9. Diagram of Connections for Test of Street CarMotors, Prof. Puffer.
Electrical engineering
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