Harmonics

 HARMONICS TREATING HARMONICS IN ELECTRICAL DISTRIBUTION SYSTEMS PRESENTED BY: VICTOR A. RAMOS younger TECHNICAL CONSULTANT electronic computer POWER & CONSULTING lot January 25, 1999 What ar appealings and what amaze consonants? What problems do harmonics create? How do harmonics cloak my site or facility? Why are harmonics abstruse or un handleed in electric dispersal systems? How stop we fit electrical dispersion systems for harmonics? How can we treat harmonics? What are harmonics and what cause harmonics? Harmonics are currents or voltages with frequencies that are whole number multiples of the primordial position absolute frequencebeing 50 or 60Hz (50Hz for European squinch and 60Hz for American actor). For example, if the fundamental power frequency is 60 Hz, then(prenominal) the 2 nd harmonic is 120 Hz, the 3 rd is clxxx Hz, and so forth In modern test equipment today harmonics can be measured up to the 63 rd harmonic. When harmoni c frequencies are prevalent, electrical power display boards and transformers become mechanically resonant to the charismatic fields generated by higher frequency harmonics. When this happens, the power jury or transformer vibrates and emits a buzzing sound for the different harmonic frequencies.

Harmonic frequencies from the 3 rd to the 25 th are the active common range of frequencies measured in electrical dispersion systems. Additionally, harmonics are caused by and are the by-product of modern electronic equipment such as personal or notebook computers, laser printers, fax machines, telephone systems, stere os, radios, TVs, adjustable speed drives and! variable frequency drives, battery chargers, UPS, and any other equipment powered by switched-mode power supply (SMPS) equipment. The above-mentioned electronic SMPS equipment is also referred to as non-linear loads. This grapheme of non-linear loads or SMPS equipment generates the very harmonics they’re sensitive to and that reconstruct up right within your building or facility. SMPS equipment typically forms a...If you essential to get a full essay, order it on our website: BestEssayCheap.com

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