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Harmonics are periodic distortions of voltage, recent, or energy sine waves. Harmonics in electric power distribution techniques tend to be brought on by non-linear loads like switched mode dc ability materials and adjustable speed motor drives.Bạn có thể chuyển sang phiên bản mobile rút gọn của Tri thức trực tuyến nếu mạng

The toughest faults to seek out are those who transpire only Every now and then-intermittent celebration. They can be due to terrible connections, dust, dirt, corrosion, or just broken wiring or connectors. Other aspects, like line outages and sags or perhaps the starting off and stopping of a motor, could also lead to intermittent situations causi