Dielectric response analysis on power cables
When the insulation ages, the condition and thereby the dielectric strength of cables also deteriorates. In XLPE cables, electrical trees or water trees, caused by partial discharges or moisture, represent a serious problem.
These changes can be detected by changes in the dielectric response. Therefore, this method is ideally suited for performing cable condition diagnostics. Problems can be detected early and corresponding actions can be performed before any major damage or failures can occur.