Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 183
of the pole-face is {D + lg)TT . ^^— = 104 sq. cm. The tops of the teeth have an area 4 (DiT - 366) 62 sq. cm. 168 Electrical Engineering As the mean of these two values, we get . 104 + 62 oAg = —^ = 83 sq. cm. The cross-section of the round pole-cores can be seen from the drawing to be 77- ^j, =… … Fig. 152 The lengths of the paths in the different portions of the magnetic circuitcan be found from the drawing. It is important to notice that the air-pathIg is twice the gap between armature and pole, while the path in the teethis twice the depth of a tooth. Similarly l^, is twice the length of…
Electrical engineering
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