In the circuit of Figure 1, V = 277 volts, L = 2 mH, R = 0:4
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Question:
In the circuit of Figure 1, V = 277 volts, L = 2 mH, R = 0:4 ?, and ? = 2 ? 60 rad/s. Determine (a) the rms symmetrical fault current; (b) the rms asymmetrical fault current at the instant the switch closes, assuming maximum dc offset; (c) the rms asymmetrical fault current 5 cycles after the switch closes, assuming maximum dc off-set; (d) the dc offset as a function of time if the switch closes when the instantaneous source voltage is 300 volts.
Figure 1
Current in a series R?L circuit with ac voltage source
Related Book For
Fundamentals of Electric Circuits
ISBN: 978-0078028229
6th edition
Authors: Charles K Alexander, Matthew Sadiku
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