Why Does Dry-Type Transformer Make Noise?

Several main factors contribute to the noise produced by dry-type transformers:

Quality of Silicon Steel Sheets

Using old or spliced silicon steel sheets as the transformer core can cause significant noise. Conversely, using new, high-quality silicon steel sheets can greatly reduce the noise level.

Installation Site

If the site where the transformer is placed or installed is not level, it can cause the transformer to operate abnormally and generate loud noise.

Grid Voltage

When the grid voltage is too high, it increases the magnetic density of the core, thereby exacerbating the noise.

By addressing these factors, the noise level of dry-type transformers can be minimized.

More Resources

Analysis of electric transformer noise problem

Causes and measures for abnormal transformer sound