High frequency modelling of power transformer application to railway substation in scale model
Résumé
The paper presents the first step uf an EMC (Electromagnetic Cumpatlblllty) analysis uf a railway puwer substatlun in high frequency with reduced scale mudel. The muck-up uf the substation is puwered by a 220 V three-phase vultage supplied by a 15 kVA puwer transfurmer, a rectifier and loads. The study consists in designing an equivalent electrical circuit of puwer transfurmer in high frequency, available uver a large panel of loads. The mudel of puwer transfurmer was deduced frum measurements in frequency domain within the range 40 Hz tu 30 MHz.