DETERMINATION OF THE EFFECTIVENESS OF HARMONIC FILTERS IN THE 10 KV NETWORK OF THE METALLURGICAL PLANT

The paper deals with the analysis of work of filter-compensating device (FCD), installed in substations of 10 kV steel plant. Calculations on the efficiency of harmonic filters (f-3, f-5, f-7, f-11) are performed. Determined by the low efficiency of the filter of the 3rd harmonic, if it is indicated that an invalid combination of include filters f-3, f-7, f-11. The proposed changes in the structure of the device of FCD with filter replacement f-11 to a capacitor without protective reactor.