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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.
Compound motor It is possible to arrange for part of the field coil to be in series with the armature and part in parallel This gives rise to a motor with a mix
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Switched Mode Power Supply (SMPS) Switching mode power supply converts an unregulated DC voltage to a regulated DC output voltage . SMPS stands for switched mode power
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(a) List three types of Multiplexing techniques. (b) Give two advantages of "Multiplexing". (c) Given the total duration for the signal is 8 ns. What is the bit rate for
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