Partial Discharge Anomaly In Ac Reactor? Dry Silica Gel Condition Determines Insulation Performance.

ac line reactor During long-term operation, abnormal partial discharge is often an early sign of insulation system deterioration. Is this problem directly related to moisture absorption of the internal silica gel? Replacing with new dry silica gel becomes a core step in restoring equipment stability.

Silica gel moisture absorption: The hidden culprit of insulation failure

Dry silica gel is responsible for absorbing trace amounts of moisture inside the ac line reactor for vfd equipment, maintaining the dryness of the insulating medium. Once the silica gel becomes saturated with moisture, its adsorption capacity is lost, and the surface resistivity of the insulating material drops sharply. In a humid environment, the alternating current field induces the formation of conductive pathways on the surface of the insulation layer, leading to partial discharge. The discharge pulses continuously erode the solid insulation, accelerating the material aging process.

Partial Discharge: The Source of Cumulative Damage

Partial discharge is not an isolated event; each discharge leaves tiny carbonization marks on the insulation surface. Over time, these marks develop into irreversible conductive channels, ultimately leading to insulation breakdown. The design life of the ac dc reactor is highly dependent on the stability of the internal insulation environment, and silicone failure is the factor that undermines this stability.

Replacing with New Silica Gel: An Inevitable Choice for Rebuilding the Insulation Barrier

Moisture-saturated silica gel cannot be fully restored to its performance through simple drying. Only by replacing the silica gel with a completely new dry one can an effective moisture barrier be re-established, suppressing discharge activity and preventing further damage to the solid insulation. This operation is directly related to the safe operating cycle of ac input reactor.