A high-voltage winding of a 3-phase transformer was initially designed in delta connection. When the design is changed to a star connection keeping the rated line voltage and power constant, which of the following statements is INCORRECT?

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Physics · Electrical Machines

A high-voltage winding of a 3-phase transformer was initially designed in delta connection. When the design is changed to a star connection keeping the rated line voltage and power constant, which of the following statements is INCORRECT?

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Number of turns per phase decreases

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Answer 1

Winding resistance decreases

Answer 2

Number of turns per phase decreases

Answer 3

Winding conductor cross-section increases

Answer 4

Winding insulation requirement decreases

A high-voltage winding of a 3-phase transformer was initially designed in delta connection. When the design is changed to a star connection keeping the rated line voltage and power constant, which of the following statements is INCORRECT?

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A high-voltage winding of a 3-phase transformer was initially designed in delta connection. When the design is changed to a star connection keeping the rated line voltage and power constant, which of the following statements is INCORRECT?

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