International Library of Technology · Scranton, International Textbook Co. · leaf 472
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… … FIG. 7. protection still more sure. This same style of arrester ismounted in a weather-proof box for use out on the line; theone shown in Fig. 5 is intended for use in the station.Fig. 7 shows two of these arresters connected in series forcircuits on which more than 75 lights are operated. 19…
Electrical engineering
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