www.jsyali.com.cn YALI YBU SERIES EXPLOSION PROOF THREE-PHASE ASYNCHRONOUS MOTOR FOR TUNNELING MACHINE EXPLOSION PROOF THREE-PHASE ASYNCHRONOUS MOTOR FOR TUNNELING MACHINE / Product Overview The YBU series tunneling machine is equipped with explosion-proof three-phase asynchronous motors, which are suitable for the cutting section of coal mine underground tunneling machines and other similar mining machinery. This series of motors complies with GB/T 3836.1-2021 "Explosive Environments Part 1: General Requirements for Equipment", GB/T 3836.2-2021 "Explosive Environments Part 2: Equipment Protected by Explosion proof Enclosures", GB/T 3836.3-2021 "Explosive Environments Part 3: Equipment Protected by Increased Safety Type" e "", and meets the requirements of MT/T 477-2011 "Explosion proof Three phase Asynchronous Motors for YBU Series Tunneling Machines". The explosion-proof mark Ex db I Mb for electric motors is applicable to underground mining faces containing methane and coal dust explosion hazards. The YBUS series of explosion-proof three-phase asynchronous motors are suitable for the cutting section of coal mine underground tunneling machines and other similar mining machinery.. This series of motors complies with GB/T 3836.1-2021 "Explosive Environments Part 1: General Requirements for Equipment", GB/T 3836.2-2021 "Explosive Environments Part 2: Equipment Protected by Explosion proof Enclosures", GB/T 3836.3-2021 "Explosive Environments Part 3: Equipment Protected by Increased Safety Type" e "", and meets the requirements of MT/T 477-2011 "Explosion proof Three phase Asynchronous Motors for YBU Series Tunneling Machines". The explosion-proof mark Ex db I Mb for electric motors is applicable to underground mining faces containing methane and coal dust explosion hazards. / Technical Parameter Rated power Rated voltage Rated frequency Work duty Thermal classification Ingress protection Explosion proof grade Cooling method Thermal element Rated power Rated voltage Rated frequency Work duty Thermal classification Ingress protection Explosion proof grade Cooling method Cooling water pressure Cooling water temperature Thermal element