This series of motors adopts a box-type steel plate structure, and the inside of the motor can be observed and touched by removing the cooler or the protective cover, which is convenient for installation and maintenance of the motor; the rotor adopts a cage-type cast aluminum rotor, which is formed at one time, and copper bar rotors can also be produced according to customer needs , which improves the reliability of operation; the stator adopts F-class insulation vacuum pressure impregnation solvent-free process (VPI), so that the motor has reliable insulation performance and moisture-proof and impact-resistant capabilities; both the stator and the bearing are equipped with PT100 temperature measuring elements, and the motor bearing There are non-stop oil injection and oil discharge devices, which improves the protection ability and operating efficiency of the motor itself.