International Library of Technology · Scranton, International Textbook Co. · leaf 336
by a small air gap, between which the lightningjumps when it comes in over the line. D, D are two ter-minals with a small gap between them. This auxiliary gapis provided in order that the discharge may pass to theground without having to pass through coils A, A, whichhave considerable… … ^TfflTS~^ To Dynamo K ft ~B-A over the line, it jumps the gap between C C and also thatbetween D D and passes to the ground. If a dischargehappens to come over the other side of the circuit at thesame time (and this would usually be the case, because theline wires run side by side), there will be a…
Electrical engineering
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