YBK3 series explosion-proof three-phase asynchronous motor for underground coal mine is axially ventilated, fully enclosed, fan-cooled, squirrel-cage explosion-proof three-phase asynchronous motor, which is the basic series of explosion-proof motors designed to replace the YBK2 series in China, with the advantages of high efficiency, high torque, strong overload capacity, low noise, low vibration, large temperature rise margin, good performance, easy installation and maintenance, and long service life. It has the advantages of reasonable explosion-proof structure, safe and reliable use, and beautiful appearance. The technical level of the product has reached the domestic advanced level.
YBK3 series ex proof electric motor has the advantages of high efficiency, large torque, strong overload capacity, low noise, small vibration, large temperature rise margin, good performance, convenient installation and maintenance, long life, reasonable flameproof structure, safe and reliable use, beautiful appearance, etc. The explosion-proof grade of the motor is Class I, Division 2, Group A, B, C and D.
YBk series explosion-proof motors for underground coal mines are explosion-proof motors specially designed for underground coal mines. The explosion-proof mark is "Ex d I Mb". It is suitable for underground coal mining working faces with explosion hazards of methane mixtures and coal dust.
The explosion-proof performance of YBK3 series explosion-proof three-phase asynchronous motors conforms to the national standards GB3836.1-2010 Explosive Environment Part 1: General Requirements for Equipment and GB3836.2-2010 Explosive Environment Part 2: General Requirements for Equipment.
GB3836.2-2010 "Explosive Environment Part 2: Equipment Protected by Flame-proof Shell "d"" and industry standard MT/T451-2011 "General Technical Specification for Safety Performance of Flame-proof Low-voltage Three-phase Asynchronous Motors for Coal Mines" and JB/T9593.1-2015 "YBK3 Series Flame-proof Three-phase Asynchronous Motors for Underground Coal Mines". YBK3 Series Flame-proof Three-phase Asynchronous Motors for Underground Use in Coal Mines (Block No. 80-355)", it is made into flame-proof type, and the explosion-proof mark is "Exd IMb". It is suitable for use in underground coal mines where there is a danger of methane mixture and coal dust explosion.
Connection Method: "Y" connection for 3kW and below (380V); "Δ" connection for over 3kW (380V).
Cooling Mode: IC411
Explosion-proof Marking: ExdIMb