Bertie Bezuidenhout

In the latest newsletter which would be published on November 14, 2023, I am making another attempt, this time, to catch the attention of accountants and financial officers explaining to them how unbalanced voltages, phase-shift variations, and harmonics disturbances would result in enormous economic losses. But first, I must go back to a previous blog

In the mid-1980s, I embarked on a mission to resolve persistent “power failure” complaints from the National Accelerator Centre (NAC) in Faure, Western Cape, now known as iThemba LABS—the largest accelerator facility in the Southern Hemisphere. Invited for private tours, I delved into their operations, even entering the high-stakes environment of the operating room. Witnessing

With our comprehensive Negative Phase Sequence Consulting Services, we deliver expert analysis and innovative solutions to effectively manage negative sequence currents in three-phase electrical systems. Our services are designed to identify and address issues caused by unbalanced loads, faults, and system abnormalities, ensuring system stability, reducing equipment wear, and significantly enhancing overall power quality. We

Extremely long—hundreds of kilometers—untransposed high and extra-high voltage transmission lines with a flat, horizontal conductor configuration significantly contribute to negative-sequence voltages and, to a lesser extent, zero-sequence voltages. The incidence of negative-sequence voltages rises with increasing electrical load. In the late 1970s and early 1980s, Eskom operated two 400kV transmission lines to the Western Cape: