Henry and Hora's modern electricity; a practical working encyclopedia (1915)
Henry, James. [from old catalog], Hora, Karel Jan, 1881- [from old catalog] joint author · Chicago, Laird & Lee, inc. · leaf 138
Fig. 42. ELECTRICAL ENGINEERING 137 the two neighboring TV poles. These machines are called mul-tipolar in distinction from two-pole, or bipolar dynamos.(Fig. 42 represents an 8-pole dynamo.) As a rule, the numberof brushes is equal to the number of poles, but by makingproper cross connections… … Fig. 43. Series, shunt, compound IO9. In a SERIES WOUND DYNAMO the field circuit and the external cir-cuit are connected in series with thearmature circuit, so that the entirearmature current must pass throughthe field coils. (See diagram, fig. 43.) Series wound dynamos are usedwhere a current of…
Electrical engineering
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