Engine : Electricity - 199/1386
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| In figure "2" of the diagram shown in the illustration, the three phase power transformer has a step-down turns ratio of four to one. If a three-phase 440 volt supply is connected to terminals 'A1-B1-C'1, what voltage should develop across terminals 'A2-B2-C2'? Illustration EL-0084 |
| A) 762 volts |
| B) 64 volts |
| C) 190 volts |
| D) 110 volts |
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Illustration EL-0084
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