If your distribution transformer is aging, the risk is not just failure. It is unplanned outages, safety exposure, missed capacity growth, and long procurement lead times that turn a small problem into a multi-year headache. Replace (not reinforce) when the unit shows irreversible insulation aging, repeat internal fault behavior, lost thermal margin, or when the […]
Choosing the wrong transformer capacity for a grid expansion is a critical error. Under-sizing leads to overloads and failures, causing costly downtime. Over-sizing wastes capital on an underutilized, inefficient asset that inflates operational costs for years. To correctly evaluate transformer capacity, you must perform a detailed load analysis, apply realistic diversity factors, convert the load […]
Expanding a distribution grid is rarely a “swap in a bigger transformer” exercise. A sound capacity decision must balance current demand, forecast growth, supply reliability, and lifecycle economics—with one clear engineering objective: avoid chronic light-loading (“oversized transformer1”) or sustained overloading. In practice, transformer sizing should be based on verified load data2 (or defensible estimates), the […]