Reference no: EM131203164
A 10-kVA 480/120-V conventional transformer is to be used to supply power from a 600-V source to a 480-V load. Consider the transformer to be ideal, and assume that all insulation can handle 600 V.
(a) Sketch the transformer connection that will do the required job.
(b) Find the kilovoltampere rating of the transformer in the configuration.
(c) Find the maximum primary and secondary currents under these conditions.
(d) The transformer in Problem 2-18 is identical to the transformer in Problem 2-17, but there is a significant difference in the apparent power capability of the transformer in the two situations. Why? What does that say about the best circumstances in which to use an autotransformer?
Problem 2-17
A 10-kVA 480/120-V conventional transformer is to be used to supply power from a 600-V source to a 120-V load. Consider the transformer to be ideal, and assume that all insulation can handle 600 V.
(a) Sketch the transformer connection that will do the required job.
(b) Find the kilovoltampere rating of the transformer in the configuration.
(c) Find the maximum primary and secondary currents under these conditions.
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