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  3. problem 3: a single phase 60 hz two-winding power

Problem 3: A single phase 60 Hz two-winding power transformer is rated at 2400V/240V and 100...

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Electrical Engineering

Problem 3: A single phase 60 Hz two-winding power transformer israted at 2400V/240V and 100 kVA with
Zeq = 0.5 + j0.8 Ohm. If an autotransformer is built from thisconventional transformer to supply a load at
2640V with supply voltage 2400V. Draw the autotransformer andcalculate Zeq, the voltage, current and
apparent power rating of the auto transformer. Also calculate theapparent power rating advantage of
autotransformer over conventional transformer.

Answer & Explanation Solved by verified expert
3.7 Ratings (302 Votes)
Advantages of using Auto TransformersFor transformation ratio 2 the size of the auto transformerwould be approximately 50 of the corresponding    See Answer
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