Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 141
Fig. 142 in the armature core, for at high density and quick frequency thereis a great loss by hysteresis in the iron, a loss due to internalelectrical currents. An armature which hums loudly when loadedis, as a rule, worked cX too great a density for the frequency used.The density, or B, in the… … Fir,. 143 Fig. 144 Utmost. Even at that flux density, with 100 «^ per second, 6 horse-power per ton of iron is lost. Alternators require, for this reason,to have far greater proportion of iron in their structure than con-tinuous current generators. In the formuLe given for calculatingE, the Z is…
Electrical engineering · Electric power
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
