Electrical transformers frequently emit a humming or buzzing noise. While a transformer does not contain moving parts, these humming sounds are similar to the hum and buzz of a generator or motor and can cause annoyance, especially in high-traffic areas.
At Sunbelt Solomon, we provide expert repair and maintenance services and can help reduce the noise your electrical transformer makes for peaceful and quiet operation.
Why Do Electrical Transformers Make Noises?
The leading cause of most electrical transformer noises is the magnetostriction effect. The magnetostriction effect is when ferromagnetic materials alter their dimensions upon coming into contact with the magnetic field. The alternation current flowing through the coil of an electrical transformer also affects the iron core, which causes it to produce a humming noise.
What Do Electrical Transformer Noises Mean?
Over time, the core adhesive of a transformer begins to break apart, letting the laminated layers separate from each other. As these layers vibrate, they produce a humming noise that becomes louder as the adhesive continues to break down. Some other noises you may hear while the transformer is in operation include:
- Load sounds
- Fan and pump sounds
- Mechanical and structural sounds
- Acoustical resonance
How to Stop an Electrical Transformer From Making Noises
While it is not possible to stop electrical transformer noises completely, you can mask and reduce the noise levels by:
- Selecting a low-traffic site: When choosing where to install your transformer, do your best to avoid high-traffic areas such as offices or residential buildings.
- Avoid corners and corridors: When mounting your transformer, avoid placing it in a corner or near a ceiling, as these locations increase noise levels.
- Choose a solid surface: Mount the transformer on a dense surface such as concrete to reduce noise.
- Tighten enclosure bolts: Ensure all bolts and screws are tight, as loose elements will vibrate and create more sound.
- Use acoustic dampening materials: Materials such as acoustical tile and fiberglass can help contain your electrical transformer noise.
- Use cushion padding or oil barriers: These sound-dampening materials can soften the noise and prevent spreading.
- Employ flexible mounting techniques: Use vibration dampeners and flexible mounting methods on structural walls, columns and frames.
Request a Service Quote From Sunbelt Solomon Today
Start reducing the amount of noise your transformer makes with expert services from Sunbelt Solomon. Our team will provide comprehensive and effective solutions so you can benefit from your transformer without excessive noise. To learn more about our services, request a quote today!
