During a dielectric absorption test, how is a healthy insulation expected to react?

In a dielectric absorption test, a healthy insulation material is expected to demonstrate a rise in resistance over time. This increase indicates that the insulation is effectively absorbing the applied voltage without significant leakage. As the insulation becomes charged, the resistance will initially show a lower value, but as time progresses, the resistance should increase steadily as the dielectric material stabilizes and minimizes losses.

This behavior suggests that the insulation is in good condition and capable of maintaining its integrity under electrical stress. A consistent rise in resistance reflects the material's ability to store electrical energy, and it can indicate that the dielectric properties remain effective, supporting a healthy insulation system.