Dust Accumulation: The Hidden Threat To Dry-type Transformer Insulation

Entering the production workshop, the dust suspended in the air is often overlooked. These tiny particles are quietly adhering to the surface of the ventilation duct of device cast resin dry type transformer manufacturers. The heat dissipation performance of the equipment gradually decreases, and the winding temperature rises imperceptibly. High-temperature environments accelerate the aging process of insulation materials, and the cast resin type transformer device, which was originally designed to have a lifespan of twenty years, may need to be replaced after ten years.

Dust Accumulation Leads to Problems: Insulation Performance Faces Long-Term Challenges

Dust accumulation is not a simple cleaning issue. Conductive dust, under the influence of electromagnetic fields, easily causes creepage on the insulation surface. Partial discharge activity persists, causing irreversible erosion of the epoxy resin insulation layer. In one electronics factory, dust accumulation caused the insulation resistance of the crt dry type transformer device to plummet from 1000MΩ to 50MΩ, ultimately leading to an inter-turn short circuit.

Impaired heat dissipation: A chain reaction of uncontrolled temperature rise

Dust blocked the heat dissipation channels, significantly reducing the cooling efficiency of the delta star dry type transformer unit. Dust accumulation in just six months can reduce cooling efficiency by 75%. Excessive winding temperature rise directly leads to increased copper losses, and the continuously rising hot spot temperature further accelerates insulation aging. Once this vicious cycle forms, the equipment failure rate will increase exponentially.