International Library of Technology · Scranton, International Textbook Co. · leaf 100
Fig. 40. circuit. The field coils are connected in series with theoutside wires, as shown. In Fig. 39 the starting, or shunt,coil, as it is sometimes called, is a coil of fine wire in series 86 ELECTRIC TRANSMISSION. 14 with the armature and placed inside one of the field coils.It provides just… … 98. The above remarks relating to recording wattmetershave been made with special reference to the Thomsonmeter, because this one is so widely used. It is accurateand has the great advantage that it will operate on eitherdirect or alternating current. If properly cared for it willgive good results,…
Electrical engineering
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