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 145
arc 1.5 inches Pole-core section 1.5 inches X 1.937 inches Yoke depth 0.375 inch Air gap 0.032 inch Field coil (all poles) 1)6.0 turns Field conductor No. 17 enamel-covered Field resistance (total) 1.75 ohms *Winding four pole, two circuit, singly re-entrant, with one dead armature cojl. 181 132… … the terminal voltage in order to obtain the internally generatede.m.f., which is analogous to the back-e.m.f. in a motor. One special feature of this design is that at maximum cur-rent at 1350 r.p.m.. Fig. 41, the field ampere turns per pole are 132 I DESIGN OF SMALL MOTORS 133 186.8 while the…
Electric motors · Electric transformers · Electromagnets · Induction coils
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