A calculated 120/240-volt single-phase service load is 38,400 volt-amperes and is balanced across both legs. What current does it represent at 240 volts?

Texas Journeyman exam practice question · Services & Separately Derived Systems

A calculated 120/240-volt single-phase service load is 38,400 volt-amperes and is balanced across both legs. What current does it represent at 240 volts?

A320 amperes
B9,216 amperes
160 amperes
D80 amperes

Why C is correct

For the balanced 120/240-volt service total, divide volt-amperes by 240 volts. The result is 38,400 divided by 240, or 160 amperes; dividing by 120 would double-count the balanced total.

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A calculated 120/240-volt single-phase service load is 38,400 volt-amperes and is balanced across both legs. What current does it represent at 240 volts?

A calculated 120/240-volt single-phase service load is 38,400 volt-amperes and is balanced across both legs. What current does it represent at 240 volts?

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