6. Three single phase transformers are rated at 15 kVA, 480 V/120 V, 60 Hz are connected in delta function as autotransf

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6 Three Single Phase Transformers Are Rated At 15 Kva 480 V 120 V 60 Hz Are Connected In Delta Function As Autotransf 1 (73.42 KiB) Viewed 33 times

6. Three single phase transformers are rated at 15 kVA, 480 V/120 V, 60 Hz are connected in delta function as autotransformers on a 600 V, 3-phase line. The H₁, H₂, X₁, X₂ polarity marks appear on the metal housing. a. Show how the transformers should be connected. b. Determine the 3-phase voltage output of the transformer. c. Determine the phase shift between the 3-phase voltage output and 600 V, 3- phase input.