YZR series slip ring crane duty motors description:
1. YZR series slip ring crane duty motors are used to drive various types of cranes and metallurgical machinery. It has the characteristics of large overload capacity and high mechanical strength，compact structure, convenient control and simple maintenance, YZR series is wound rotor motor, YZ series is squirrel cage motor.
YZR slip ring crane duty motors power grade and installation dimension conform to IEC standard.
2. Slip ring crane motors can operate under the following environmental conditions:
(1) cooling medium temperature is not more than 60 ℃ (metallurgical motor) or 40 ℃ (crane motor)
(2) the elevation is no more than 1000 meters
(3) regular, significant mechanical vibrations and shocks.
3. Insulation Class:B, F, H
4.Mounting: IM1001, IM1002, IM1003, IM1004, IM3001, IM3003, IM3011, IM3013
5.There are seven types of motor working duty:S2,S3,S4,S5,S6,S8,S9