TY JOUR TI Option Protection Manure belt breakage during freezing and a variety of scrapers peregruhkah KW drives for conveyors KW single-phase monitoring relay current KW exposure time KW thresholds currents Imin and Imax KW motor KW cargo Transporter KW the starter JO Voronezh Scientific-Technical Bulletin AU Mazukha, A.. PY 2015 IS 4 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov