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Unformatted text preview: (input voltage, output voltage, and apparent power)? b) Can it be used for 1000 V to 240 V conversion with apparent power ratings higher than the nameplate 10 kVA? 3. It has been claimed that an open delta connection has advantages over other transformer arrangements. In this application, two transformers are connected to V ab and to V bc , respectively to perform conversion. Consider the following: Two single-phase transformers, each rated at 10 kVA and 1000 V/500 V are connected in the open-delta configuration. Balanced three-phase voltages are imposed. a) Does this work? Can three-phase voltage be drawn from the low-voltage secondary? b) What are the equivalent three-phase ratings? How do these compare to combined ratings of the two devices? c) If a third transformer is added to complete the delta, how will the ratings change?...
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This note was uploaded on 08/25/2011 for the course ECE 431 taught by Professor Bazzi during the Spring '11 term at University of Illinois at Urbana–Champaign.
- Spring '11