International Library of Technology · Scranton, International Textbook Co. · leaf 472
ELECTRIC LIGHTING. 19 blow-out coils, and unless they were of very low resistancethere would be considerable loss of energy. The air gap isbetween the vanes c, c. Fig. 6 shows how the arresters are con-nected. Current from the dynamo D flows through the coils Aand out on the line, thus setting up a… … X-—X—X—X—X- V—X—X X—X- D &%7 Fig. 6. the pole pieces. When a discharge comes in over the line, itjumps from c to c and passes off to the ground. Thecoils A, A act as choke, or reactance, coils to keep the dis-charge out of the dynamo, but sometimes additional chokecoils are inserted, as shown…
Electrical engineering
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