Where should the distribution transformer be installed in relation to the load area?

• A. As near as possible to the center
• B. At the edge of the load area
• C. Far from the load area
• D. On a separate pole

Answer: (A)

Placing the distribution transformer as near as possible to the center of the load area minimizes the longest distance from the transformer to any load. Shorter feeder lengths mean lower voltage drop and smaller I²R losses, which helps keep voltages within limits for all customers and improves overall efficiency. It also helps balance the load on different feeder paths, preventing one side from being overloaded. If the transformer were at the edge or far from the load, faraway customers would see larger voltage drops and higher losses, and the system would be less balanced. Mounting on a separate pole doesn’t change the fundamental distance to the loads, so it doesn’t offer the same advantage.