TY JOUR TI Calculation of Heat Losses in The Combined Filter-Compensating Unit KW Combined filter-compensating unit KW reactive power compensation device KW reactive power compensation KW static reactive power generator KW calculation of heat losses KW IGBT transistor KW heat losses KW air cooling JO Bulletin of scientific research results AU Agunov, A.V. AU Karabanov, A.A. AU Terehin, I.A. AU Baranov, I.A. PY 2023 IS 2023 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"