A 25-kilovolt-ampere single-phase transformer has a 240-volt secondary. Ignoring losses, what is the full-load secondary current?

Texas Journeyman exam practice question · Equipment & Devices

A 25-kilovolt-ampere single-phase transformer has a 240-volt secondary. Ignoring losses, what is the full-load secondary current?

A60.1 amperes
About 104.2 amperes
C6,000 amperes
D0.0096 ampere

Why B is correct

Single-phase current equals volt-amperes divided by voltage. Convert 25 kilovolt-amperes to 25,000 volt-amperes, then divide by 240 volts to obtain approximately 104.2 amperes.

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A 25-kilovolt-ampere single-phase transformer has a 240-volt secondary. Ignoring losses, what is the full-load secondary current?

A 25-kilovolt-ampere single-phase transformer has a 240-volt secondary. Ignoring losses, what is the full-load secondary current?

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