Dynamos and motors; a text book for colleges and technical schools (1911)
Franklin, William S. (William Suddards), 1863-1930, Esty, William, 1868-1928 · New York The Macmillan company · leaf 451
ite; {Ji) the sameas that of main B; (r) onetenth of that of main B.Ans. («)66o,900 ohms; (^)644,900 ohms ; (<f) 500,900ohms. 26. The armature D, Fig.26/, of a clynamo is con-nected to supply mains inseries with an ammeter Aand a suitable rheostat R,and the ammeter reads 50amperes. The terminal… … Fig. 26p PROBLEMS. 443 reads i.i volts; the same reading is obtained when the leads areconnected to segment c and brush lead d. Find: (i) the re-sistance of the armature between commutator segments b andc\ (2) the resistance of each brush, including contact resistancebetween brush and commutator;…
Dynamos · Electric motors
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