2016JB/T 7842-2016 YZR-Z series hoisting special winding rotor three-phase asynchronous motor technical conditions
2005JB/T 7842-2005 Technical specification for YZR-Z range of special-purpose wound-rotor Three-phase induction motors for crane application
1995JB 7842-1995 Specifications of YZR-Z series three-phase asynchronous motor with winding rotor for hoisting
JB 7842-1995 Specifications of YZR-Z series three-phase asynchronous motor with winding rotor for hoisting was changed to JB/T 7842-2005 Technical specification for YZR-Z range of special-purpose wound-rotor Three-phase induction motors for crane application.