Elementary lectures on electric discharges, waves and impulses, and other transients (1914)
Steinmetz, Charles Proteus, 1865-1923 · New York, London, McGraw-Hill book co., inc. · leaf 160
D IMPULSES. If one or both circuits have ground return, they are replacedby the circuit of the overhead conductor and its image conductorbelow ground, as discussed before. If the distance D between the circuitsAB and ah is great compared to the dis-tance S between the conductors of circuitAB, and… … S s ^a = D + - cos 0 + - cos -yjr, S s Ah = D -}- — cos 0 — ^ cos -^j S s Ba = Z) — - cos 0 + - cos yjr, Bh = D — -^Goscf) — -cos t/^, Fig. 74. (42) hence 2 log 7 (D-{--^coQcf>--cos ylrjlu- ^cos0+-cosyl = 2 log iD-{--cos(f) +^cos -^jf D—^cos(/)—-cos-^/^j f - cos 0 - 2 COS -f 1 10-9/i D »-(!…
Electricity · Electrical engineering
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