%0 Journal Article %T Using the multifunction relay insulation monitoring and control phases in the control circuit by a crane %A Mazukha, N.. %A Mazukha, A.. %K The beam crane, electric motors, relay control speed, braking, engine control re-lay phase, and insulation resistance %J Voronezh Scientific-Technical Bulletin %D 2015 %N 4 %P 5 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov