Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 159
s passed through persecond by the iron. Curves of hysteresis and eddy cur-rent losses in armature cores, in watts per cubic inch 6 5 4 01 50 100 150 ARMATO.RE DIAMETER IN INCHES Fig. 85. GENERATORS. 147 and per pound, expressed in terms of flux density, are givenrespectively in Figs. 86 and 87, for… … 2345 67 8 9 10 11 12KILO-MAXWELLS PER SQ. CM.Fig. 87. per second. These curves are plotted from values calcu-lated by means of the formulae P. = 8.3i;^(Rifio-«, P, = 4.07^fmLio-, where v = volume of iron in cubic inches,/ = cycles per second, / = thickness of laminations in mils (usually 14),(B^ =…
Electric machinery
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