The Effect of Harmonic Distortion in Capacitive and Inductive Loads on the Performance of Electrical Grids in Huge projects Projects (Faden Spectrum Phenomenon – An Eexample)

Abstract

Hazar Shtat

This research presents the investigation, evaluation, and resolution of an enigmatic occurrence that surfaced following the installation of a massive screen owned by Faden Spectrum Company on one of the towering structures in the Saudi Arabian city of Khobar. The screen, which encompasses 2000 m^2, 2000 cabins, and 2000 feeding cells, each with an area of 1 m2 . This phenomenon includes two things: The first is the appearance of an annoying noise emanating from the main feeder MDB, and the noise increases exponentially with increasing illumination intensity, becoming a noise of 90 dB at 60% illumination and 155 dB at 100% illumination. The second most surprising thing is that the cables became hot only at the point of their exit from the ceiling of the panel, as the temperature then reached 83 degrees, noting that the cables before and after this point, it was not affected by this temperature at all. Its temperature was 28 degrees before the entry point, and the same temperature after the exit point, while the iron metal of the panel’s ceiling was clearly affected, also recording 83 degrees.

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