A Delta-Connected Three-Phase Alternator Is Driving a Wye-Connected Resistive Load

question 9

Multiple Choice

A delta-connected three-phase alternator is driving a wye-connected resistive load. The alternator output voltage is 480 V. The load resistors are 12 Ω each. What is the phase current in the alternator?

• A) 13.33 A
• B) 23.09 A
• C) 39.28 A
• D) 40 A

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Definitions:

Ordinary Annuity

Steady cash flows facilitated at the decline of each era during a certain season.

Nominal Interest

The rate of interest quoted on a loan or bond without adjusting for inflation or other factors that could affect the real rate of return.

Effective Rate

The actual interest rate on a loan or investment, taking into account the compounding of interest, as opposed to the nominal rate.

Ordinary Annuity

Homogeneous financial installments disbursed at the cessation of individual periods across a confirmed timeline.