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Q. A single-phase, 3-kVA, 220:110-V, 60-Hz transformer has a high-voltage winding resistance of 0.3 , a low-voltage winding resistance of 0.06 , a leakage reactance of 0.8 on its high voltage side, and a leakage reactance of 0.2 on its low-voltage side. The core loss at rated voltage is 45 W, and the copper loss at rated load is 100W. Neglect the exciting current of the transformer. Find the per-unit voltage regulation when the transformer is supplying full load at 110 V and 0.9 lagging power factor.
Q. A three-phase ac motor, used to drive a draft fan, is connected to a 60-Hz voltage supply. At noload, the speed is 1188 r/min; at full load, the speed drops to 1128 r/min. (a
#question ...THE APPLICATION AND OPERATION OF ZENER DIODES
Determine the total active power: Circuit is introduced in the Face 1. It is about a single-wires face for a three-phase system. The voltage of the AC source is of 69kV. The s
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#question. i want design of inductive coupling to transfer power @ 2 watt in air gap of 5mm radial distance..
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