TY JOUR TI THERMODEPENDENT POLYCRYSTAL RESISTORS IN STARTERS OF ELECTRIC MOTORS OF LIFTING AND TRANSPORT MACHINES KW semiconductor resistor KW thermo-sensitive filling KW starting characteristics JO Bulletin of Bryansk state technical university AU Noskov, V.N. AU Voronova, N.P. PY 2021 IS 2021 PB Bryansk State Technical University