Harmonics are periodic distortions of voltage, current, or energy sine waves. Harmonics in electric power distribution systems are often brought on by non-linear hundreds including switched manner dc power supplies and adjustable speed motor drives. Trong trường hợp bị hạn chế truy cập, bạn nên xem xét đến việc kiểm https://popec790baz2.creacionblog.com/profile