ASYNCHRONOUS HIGH-TORQUE MOTOR FOR REDUCED ROTATION SPEED

摘要

FIELD: engines and pumps. ^ SUBSTANCE: in asynchronous motor the following is used: semi-open (up to 2.2 mm) rotor slots of special design without chamfer with transition at the height of 1 mm to wide part of the slot top; stator slots having upper part of arched design and maximum opening up to 4 mm on condition that number of pairs of poles 2p = 6 - 12 is chosen so that frequency of supply voltage is not lower than 4 Hz, with rigid matching of ratio of numbers of rotor slots of 66-130 and stator slots of 54 - 108 at the number of rotor slots more than number of stator slots by 20%; stator winding with number of slots per pole and phase is at least 2; magnetic system made from steel having high values of induction without connection to value of specific losses. ^ EFFECT: higher energy data and overload capacity of electric motor, including at its operation in generator mode. ^ 2 dwg, 1 tbl