Why Can Harmonic Filters Extend The Lifespan Of Cables?

Harmonic currents generated by nonlinear loads cause additional heat accumulation inside cables. This heat accumulation accelerates insulation aging and shortens conductor life. The higher the harmonic content, the more pronounced the localized heating of the cable, leading to long-term degradation of insulation material performance and a reduced service life.

harmonic filter for generator By reducing the harmonic content in the power system, the cable's heating level is brought closer to normal operating conditions. Reducing high-frequency harmonic currents means lower losses within the cable and less thermal shock to the insulation medium, directly impacting the cable's long-term reliability. electrical harmonic filter After controlling harmonic currents, the overall thermal stress of the distribution network significantly decreases, making the cable's performance more stable under various load conditions.

For medium to large-scale factory power systems, installing harmonic filtration can alter the spectral distribution of complex waveforms in the cable, thereby mitigating the impact of high-order harmonics on conductors and insulation materials. This improvement not only enhances system power quality but also slows down the process of cable insulation degradation.