Why Your Transformer Hums When Different Machines Are Running—and What It Reveals
The first time you notice it, the sound feels almost alive. A steady, rhythmic hum—like a distant engine idling—suddenly deepens or sharpens when a nearby machine fires up. It’s not just background noise; it’s a signal. Transformers don’t hum in isolation. Their vibrations are a dialogue between power systems, and when different machines are running, … Read more
