Insulation breakdown is the most common cause of winding burnout. Understanding its causes helps extend engine life. Let's look at what destroys insulation.
Main causes of breakdown
- Aging of insulation. Over time, insulation loses its properties - a natural process accelerated by loads.
- Overheating The main accelerator of aging: exceeding the temperature by 8-10 ° C reduces the service life by half.
- Moisture Reduces electrical strength, leads to leaks and breakdown.
- Overvoltage.Surges in the network, impulses from the frequency converter.
- Vibration.Rubs the insulation at the points of contact.
- Contaminationwith conductive dust.
How appears
| Stage | Symptom |
|---|---|
| Initial | Decreased insulation resistance |
| Development | Leaks, “electric shock” |
| Breakdown | Short circuit to the body, combustion |
How to prevent
- Prevent overheating (clean ventilation, overload protection).
- Moisture protection, moisture-resistant impregnation.
- Overvoltage protection.
- Regular resistance measurements insulation during diagnostics.
Early detection of insulation degradation allows the winding to be dried before breakdown. Regular monitoring is the basis of prevention.
Do you want to extend the service life of engine insulation in Tashkent? Elektromotors engineers will carry out diagnostics and prevention - leave a request.