GB/T 21973-2021 (English Version) PDF

Scope: This document specifies the type, basic parameters and dimensions, technical requirements, test methods, inspection rules, marking, packaging and warranty period of the YZR3 series wound rotor three-phase asynchronous motors for hoisting and metallurgy. This document applies to hoisting and metallurgical wound rotor three-phase asynchronous motors (frame numbers 100 to 400) (hereinafter referred to as motors) supporting various hoisting machinery and metallurgical auxiliary equipment. All types of motors derived from this series of motors Kind of motor reference execution.

GB/T 21973-2021 Referenced Document

GB 20237-2006 Safety requirements of crane and metallurgical motors and canned motors
GB/T 10068 Mechanical vibration of certain machines with shaft heights 56 mm and higher—Measurement, evaluation and limits of vibration severity
GB/T 1032 Three-phase asynchronous motor test methods*， 2023-09-07 Update
GB/T 1096 Square and Rectangular keys
GB/T 12351 Environmental technical requirements of rotating electric machines for tropical use
GB/T 191 Packaging.Pictorial marking for handling of goods
GB/T 1958 Geometrical Product Specifications(GPS)—Geometrical tolerance—Verification
GB/T 1971 Rotating electrical machines—Terminal markings and direction of rotation
GB/T 1993 Cooling methods for rotating electrical machines
GB/T 21975 Method of test for reliability of three-phase induction motors for crane and metallurgical application
GB/T 22714 Test specifications of interturn insulation of form-wound winding for AC low-voltage eletrical machines
GB/T 755 Rotating electrical machines—Rating and performance
GB/T 756 Cylindrical shaft extension for rotating electrical machines
GB/T 757 Conical shaft extension for rotating electrical machines
GB/T 997 Classification of types of construction，mounting arrangements and terminal box position (IM Code) for rotating electrical machines*， 2022-10-14 Update

2021 GB/T 21973-2021 YZR3 series wound-rotor three-phase induction motors for crane and metallurgical applications—Technical specification
2008 GB/T 21973-2008 Technical specification for YZR3 range of wound-rotor three-phase induction motor for crane and metallurgical applications