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Q. A 300-kVA transformer has a core loss of 1.5 kW and a full-load copper loss of 4.5 kW.
(a) Calculate its efficiency corresponding to 25, 50, 75, 100, and 125% loads at unity power factor.
(b) Repeat the efficiency calculations for the 25% load at power factors of 0.8 and 0.6.
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The power transferred across the air gap of a two pole inductionmotor is 24 kW. If the electromag netic power developed is 22 kW, find the slip. Calculate the output torque if the
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Principles for Implementation of Strategy in an Organization Organization required focusing on five principles for the successful implementation of strategy. Organizations wil
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Q. For the coupled coils shown in Figure, a dot has been arbitrarily assigned to a terminal as indicated. Following the dot convention presented in the text, place the other dot in
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