Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 142
the alternator has two sets of coils F andC. The coils F are separately excited as in Case 1. The coils C,known as the series or composite coils, are excited by themain current from the alternator. One terminal of the armaturewinding is connected directly to a collecting ring. The other arma-ture… … Fig. 111. Diagram Showing Method ofComposite Excitation 123 112 ALTERNATING-CURRENT MACHINERY commutator B. From the rectifier the current is led through thewinding C, thence back to the rectifier, and thence to the othercollecting ring. The shunt S, within the commutator, may beused when it is…
Electrical engineering
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