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Q. Athree-phase, 60-Hz substation bus supplies two wye-connected loads that are connected in parallel through a three-phase feeder that has a per phase impedance of 0.5 + j2 . Load 1 draws 50 kW at 0.866 lagging PF, and load 2 draws 36 kVA at 0.9 leading PF. If the line-to-line voltage at the load terminals is 460 V, find the following:
(a) Total line current flowing through the feeder.
(b) Per-phase impedance of each load.
(c) Line-to-line voltage at the substation bus.
(d) Total real and reactive power delivered by the bus.
Q. Define waves and transmission lines? In basic circuit theory we neglect the effects of the finite time of transit of changes in current and voltage and the finite distances
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part of dc machine
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