Standard No.:	GB/T 21971-2020
English Name:	YZD series multi-speed three-phase induction motors for crane application—Technical specification
Chinese Name:	YZD系列起重用多速三相异步电动机 技术条件
Chinese Classification:	K26    Special machine
Professional Classification:	GB    National Standard
ICS Classification:	29.160.30 29.160.30    Motors 29.160.30
Source Content Issued by:	SAMR; SAC
Issued on:	2020-11-19
Implemented on:	2021-6-1
Status:	valid
Superseding:	GB/T 21971-2008 Technical specification for YZD range of multi-speed three-phase induction motors for crane application
Target Language:	English
File Format:	PDF
Word Count:	7500 words
Translation Price(USD):	225.00
Delivery:	via email in 1~3 business day

本标准规定了YZD系列起重用多速三相异步电动机的型式、基本参数与尺寸，技术要求，试验方法，检验规则以及标志、包装与保用期。
本标准适用于各种起重机械电力传动用多速三相异步电动机（机座号112～280），凡属本系列电动机所派生的各种系列电动机均可参照执行。