A wye-delta transformer has a turns ratio of 2:1. It has a secondary line voltage of 480 V. The secondary is connected to a wye-connected three-phase resistive load of 50 Ω in each phase. What is the primary line current?

A) 1.6 A
B) 1.924 A
C) 2.77 A
D) 3.2 A

Primary Line Current

The electric current flowing through the primary winding or circuit of a transformer or other electrical device.

Wye-Connected

A configuration where three elements (like resistors, inductors, or capacitors) in a circuit are connected at a single common point or node, forming a Y shape.