Harmonics are periodic distortions of voltage, present, or ability sine waves. Harmonics in power distribution systems tend to be because of non-linear loads including switched method dc electric power supplies 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 + Các Web-site