International Library of Technology · Scranton, International Textbook Co. · leaf 48
ning alone, a short circuit in the shunt windingwill cause about the same symptoms, as far as the heatinggoes, as in a shunt machine. If the shunt coils are inmultiple and connected as shown in Fig. 12 (a) {short shuntconnection), the dynamo will drop its field if one shuntcoil is dead… … fault, the dynamo will throw its belt because the seriescoils work under the best possible conditions — a shortcircuit. 43. Moisture in Field Coils.—Moisture in field coilswill cause them to heat and make the brushes spark.Before putting such fields into actual service, they should bebaked out,…
Electrical engineering
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