Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 289
inciple. The single turn A in this caseis open, and is closed by the two pieces to be welded, whichpieces are held in the clamps B and are forced together underpressure while the welding current passes across the contact andheats the ends to be joined. It might seem that, since the secondary load… … Fig. 303.—Induction furnace. IronCore B B 3 E SecondaryWinJiug V PrimaryWinding Fig. 304.—Induction welder. cause of this low power factor it is necessary to take up the subjectof leakage flux in transformers. 293. Leakage Reactance.—Fig. 306 shows the actual fluxdistribution in a transformer. The…
Electrical engineering
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