Facts About trung tâm trợ giúp Revealed
Harmonics are periodic distortions of voltage, current, or power sine waves. Harmonics in electricity distribution programs are often brought on by non-linear masses such as switched mode dc electrical power provides and adjustable pace motor drives.Giải má»›i (bao gồm tất cả giải nà o có sá»± thay đổi, cáºp nháºt má»›i hoặc Ä‘iá»