本標準規定了大型三相異步電動機的型式、基本參數與尺寸、技術要求、試驗方法、檢驗規則以及標志、包裝與貯存。本標準適用于大型Ｙ 系列四極及以上一般用途籠型轉子三相異步電動機以及大型ＹＲ 系列四極及以上一般用途繞線型轉子三相異步電動機，中心高分別為７１０、８００、９００、１０００、１１２０ｍｍ。大型ＹＫＳ、ＹＲＫＳ系列三相異步電動機參照本標準執行。
This standard specifies the types, basic parameters and dimensions, technical requirements, inspection rules as well as marking and packaging requirements for large three-phase asynchronous motors.
This standard is applicable to general-purpose Y-series quadrupole or above three-phase large asynchronous motor with cage rotor (hereinafter referred to as Y-series motor) and general-purpose YR-series quadrupole or above three-phase large asynchronous motor with wound rotor (hereinafter referred to as YR-series motor), with the center height 710, 800, 900, 1000 and 1120 mm respectively. For YKS and YRKS series three-phase large asynchronous motors, this standard applies for reference.
Those not specified in this standard shall meet the relevant requirements of GB 755.
Foreword i
1 Scope
2 Normative References
3 Types, Basic Parameters and Dimensions
4 Technical Requirements
5 Inspection Rules and Test Methods
6 Marking and Packaging
