Atkinson, Albert Algernon, 1867- [from old catalog] · New York, D. Van Nostrand company · leaf 178
= -±-±z . = 1000 sq. cms. Allow B = 15,550 gausses, 15-55 X iof 15.55 X 1Qi Example. — What will be the diameter of the armatureif the pole face may be taken 2\ times as long as wide,the pole width being equal to one-half the pitch ? Solution. — The width of the pole face is Viooo -5- 2.5 = 2°… … Fig. 10 (a). -s- 3.1416 = 76.4 cm.Allowing an air gapof 0.2 cm., the diam-eter of the armaturemust be 76 centi-meters. 47. Polyphase Ar-matures. —Armatureswound two-phase areusually connected inone of two ways.First, the two wind- ings which are put on the core ninety electrical degreesapart are…
Electricity
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