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Power System Harmonics Jos Arrillaga, Neville R. Watson
Publisher: Wiley

Electric welding systems are inherently problematic as their surges of energy usage cause flicker. Power electronic converters, which are widely used in modern power systems, are some of the major sources of harmonics. Harmonics result in excess heat (or WASTED ENERGY) and at times even fire, transformer losses, and more. Due to the growing use of non-linear load equipment and new technologies in buildings, harmonic currents generated in distribution systems pose a new problem for electrical engineers. The only way to know is to identify symptoms of harmonics. Comsys AB provides a wide range of active harmonic filters and STATCOM solutions to create value through improved power quality. Very often, if you recognize specific symptoms of harmonics, the problem has already created issues on your power system. ρ�Issues of system capacity?How is harmonics measured? What are Harmonics?PRESENTED BY,DEBASISH SAHOO 0801304143 BRANCH:EEE What are Harmonics? Harmonics can cause problems ranging from telephone transmission interference to degradation of conductors and insulating material in motors and transformers. Ideally, an electrical power system in every certain point should show a perfectly sinusoidal voltage signal. However, it is difficult to preserve such desirable conditions.