A Wye-Delta Transformer Has a Turns Ratio of 2:1

question 18

Multiple Choice

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 secondary phase current?

• A) 1.6 A
• B) 2.54 A
• C) 3.2 A
• D) 4.8 A

---

Definitions:

Larger Profits

An increase in the surplus remaining after total costs are deducted from total revenue, indicating greater financial success for a business.

Variable Costs

Costs that vary with the quantity of output produced.

Average Total Cost

The total cost of production divided by the quantity of output produced, representing the per-unit production cost.

Rising Prices

A situation where the general level of prices for goods and services in an economy increases over a period of time.