In power transmission, the durability and efficiency of power cables are significantly influenced by mechanical stresses. Mechanical stresses like vibration, torsion, and bending can cause fatigue in power cable insulation, leading to cracks and partial discharge. This phenomenon can affect the insulation performance of the cable. The study aims to correlate the relationship between vibration and PD, and how vibration strength and frequency influence PD occurrence. The measurements used a vibration exciter to simulate environmental vibration of 30 Hz, 50 Hz, and 70 Hz. A 20 pC PD signal was injected to the XLPE cable and the measurements were measured by HFCT and Rogowski coil sensors. The results showed a significant increase in the amplitude of the PD charge when subjected to high-frequency vibrations.
