Dry-type distribution transformers are equipped with ___ to reduce mechanical noise.

Dry-type distribution transformers are equipped with isolation pads to help reduce mechanical noise. Isolation pads serve to minimize vibration transfer between the transformer and its mounting surface, thereby lowering the overall noise produced during operation. When a transformer operates, magnetic and electrical forces can cause physical vibrations, which in turn can lead to audible sounds. By using isolation pads, these vibrations are dampened, particularly at the points of contact with the transformer, effectively reducing the noise that escapes into the surrounding environment.

The effectiveness of isolation pads comes from their ability to absorb and dissipate vibrational energy, which is essential in settings where noise control is crucial, such as in residential areas or quiet industrial locations. Other options, such as soundproofing panels or noise-cancellation devices, may provide additional noise reduction benefits, but they do not address the mechanical vibrations directly as isolation pads do. Vibration dampeners also contribute to reducing noise, but their function is typically more about preventing vibrations from causing structural issues rather than specifically addressing noise levels.