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 24
Starting with current ii, the transient follows the curve i; starting with i^, the transient follows the proportional curve i\ At some time, t, however, the current i has dropped to the value 12, with which the curve i started. At this moment t, the conditions in the first case, of current i, are… … Fig. 4. — Curve of Simple Transient: Decay of Current. i^ is proportional to i, from any point t onward curve i is propor-tional to the same curve i from ti onward. At time ti, it is di2 _ dii 12dti dti ii But since -i^ and 4 at h are the same as -r and i at time t, itdti dt follows: or. di _ dii…
Electricity · Electrical engineering
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