Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 112
this the for the iron, and we get a totalof 15,720 as total ampere-turns. Roughly estimated, theexcitinor current for sucha machine workingf at250 volts pressure wouldbe 2 amperes, so th;itthe total turns of wirewould be L>Z1° = 7860, and -:^ = 3920 on eachbobbin. … Fig. 114 By Ohms law the resistance of the wire would be ^ = R = -^=125 ohms. And we have now to find from the wire tables a wire whichwill give 125 ohms resistance; or 62.5 ohms and 3920 turns oneach bobbin. Several wires may be tried by calculation, taking the biggestsection which will fit into…
Electrical engineering · Electric power
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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