Harmonics are periodic distortions of voltage, existing, or electricity sine waves. Harmonics in power distribution devices in many cases are brought on by non-linear loads which include switched manner dc energy provides and adjustable speed motor drives. H?i ngh? l?n th? nh?t n?m 2022 c?a ??ng b? công ty TNHH MTV X? s? ki?n thi?t Kon Tum + C�