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(Solved by Expert Tutors) 1/ A single phase, 240/120 V transformer has the following parameters:


???? ???????? ????????? ?????? ?????? ?

?A load of 10 ? at 0.8 power factor lagging is connected across the low voltage terminals of the transformer. The voltage measured across the load side is 110 V. Compute the following:??????????????

??????? a. The load voltage referred to the primary side

??????? b. The currents of the primary and secondary winding

??????? c. The source voltage.

?? ?????d. The voltage regulation

??????? e. The load power

?????? f. The efficiency of the transformer

2/?

  • A long-shunt compound dc generator delivers a load current of 50 A at 500 V and has armature, series field and shunt field resistances of 0.05 ?, 0.03 ? and 250 ? respectively. Calculate the generated voltage and the armature current. Allow 1V per brush for contact drop.




 


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Apr 19, 2020

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