What Are the Signs of Generator Alternator Winding Failure?

generator alternator winding inspection for signs of failure

The most common signs of generator alternator winding failure are repeated overheating, a burnt insulation smell, dark or damaged windings, unbalanced voltage, poor voltage under load, low insulation resistance, and abnormal winding resistance. But I would not diagnose a failed winding from low voltage or overheating alone. In our generator testing, we normally rule out […]