Small motors, transformers, electromagnets; a practical presentation of design and construction data for small motors, small low- and high-tension transformers, electromagnets, and induction coils (1920)
Stoller, Hugh Montgomery, Austin, F. E. (Frank Eugene), 1873-, Seeger, Edwin Wilbur, 1892- joint author, American Technical Society · Chicago, American Technical Society · leaf 304
therefore nearlyconstant for the first half of the stroke and then increases rapidly. — J.— J— Fig. 27. Arrangement of Three-Phase Electromagnet 290 ELECTROMAGNETS AND COILS 51 It will be noted that the work which the magnet can do ismaximum at maximum stroke, and a.c. magnets of this type… … Fig. 28. A. C. Plunger Type Electromagnet is a very complicated and difficult calculation, and fairly goodresults can be obtained by using the following proportions: If a magnet is used at its maximum stroke, 1 square inch of plunger areashould be provided for every 8 to 10 pounds pull. The coil…
Electric motors · Electric transformers · Electromagnets · Induction coils
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