An autotransformer is used to connect a 12.6-kV distribution line to a 13.8-kV distribution line. It must be capable of handling 2000 kVA. There are three phases, connected Y-Y with their neutrals solidly grounde

(a) What must the N N turns ratio be to accomplish this connection? C / SE

(b) How much apparent power must the windings of each autotransformer handle?

(c) What is the power advantage of this autotransformer system?

(d) If one of the autotransformers were reconnected as an ordinary transformer, what would its ratings be?

 

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Status NEW Posted 11 Jun 2017 12:06 PM My Price 7.00

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