Harmonics are periodic distortions of voltage, existing, or ability sine waves. Harmonics in electricity distribution methods tend to be due to non-linear masses such as switched mode dc electric power materials and adjustable speed motor drives. Cách tải application 123B Bước 1: Bắt đầu bằng việc mở trình duyệt trên https://glenne937ahp0.estate-blog.com/profile