Transcription of Eliminating harmonics from the facility power …
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Eliminating harmonics from the facility power …
power system anomalies that peri-odically occur in a facility s elec-trical system can cause equipmentmalfunction, data distortion, transformerand motor insulation failure, overheatingof neutral buses, nusiance tripping of cir-cuit breakers, and solid-state componentbreakdown. The cost of power qualityproblems can be enormous. Equipmentreplacement can cost tens of thousandsof dollars. Downtime, however, can runin the millions of dollars. power quality problems take manyforms. Voltage sags, transients, and spikesare probably the most understood of theseforms.
and the magnitude of each decreases as harmonic number increases. Harmonics above the 25th generally have little effect and are usually considered insignificant.
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