T.Huy XSMB: Gi?i ??c bi?t k?t qu? x? s? Mi?n B?c ???c bao nhiêu v?y m?i ng??i ?i!Harmonics are periodic distortions of voltage, recent, or energy sine waves. Harmonics in electricity distribution techniques tend to be attributable to non-linear loads including switched mode dc energy materials and adjustable velocity motor drives.The bonus comes w