Harmonic Analysis and Suppression of Electrolytic Manganese Enterprise

The harmonic of an electrolytic manganese enterprise in Baise is measured and analyzed.The result shows that the total and every harmonic voltage distortion ratios on the 35kV bus that the enterprise connected the in Fulin substation have obvious increment,and 11th and 13th harmonic currents exceed the limit of national standard.An 11th single tuned filter is used to the harmonic suppression and the simulation result by ETAP shows that the filter can suppress 11th,13th,17th and 19th harmonic currents effectively and decrease their values under the limit of national standard.