GB/T 20137-2006 三相笼型异步电动机损耗和效率的确定方法

ICS29.160.01

K20荡

中华人民共和国国家标准

GB/T20137-2006/IEC61972:2002

三相笼型异步电动机损耗和

效率的确定方法

Methodfordetermininglossesandefficiencyof

three-phasecageinductionmotors

(IEC61972:2002,IDT)

2006-03-06发布2006-08-01实施

中华人民共和国国家质量监督检验检疫总局发布

中国国家标准化管理委员会

GBJT20137-2006八EC61972:2002

目次

前言························，·····················，··································································……皿

1范围··········，··········，，···，·····，··········，，，······························，·······························……1

2规范性引用文件·······，······，·························，························.···……，……，1

3术语、定义和符号··················，·········，··································……，，.……，...……，……1

3.1术语和定义···1······“···，·，，11····，，，····“·，··，······，·，，···，，，..…，.……，，.··……1

3.2符号·······························，··································，········································……1

4试验要求················，·······················································································……2

4.1电源······，·······················，································，·，········，，，，·······，，，···，·············……2

4.2测量仪器·····························，······，··············································，·················……3

4.3不确定度限值····，··························································，，····……，，········...······……3

5试验程序················，······························，········，，···············、、·········，·····，·········……3

5.1概述···········································，··································································一3

5.2试验前的电机温度，，·。··，，，···········，·········，··，……，…，.·……，.，3

5.3负载试验······························，··················，·············································-·····……3

5.4空载试验4······················，··········，·，············································，············.·····……4

6效率的确定，··········，，，·········，·······················，··································，···················一·4

6.1概述···················，·················································……4

6.2空载损耗·，·········，，···········，····。···，··························4·······························……4

6.3负载杂散损耗··，····，··········，，·············································，········.·..···.·……，·‘.·.……5

6.4基准冷却介质温度的修正···，···························································.·...……，，，……6

6.5效率·，························，，·-··········，·······，··············，··················，·············，·······一·7

6.6指定负载点的效率············，·‘·························..……，·····……，，.……7

附录A(资料性附录)计算电动机效率的推荐格式···········，···········，，·········，，··········，，，·····一10

附录B(资料性附录)线性回归分析·········，·········，····················.············，··············……n

附录C(规范性附录)测功机转矩读数的修正····························································……13

图1负载杂散损耗推荐值(方法2)······一·

图2空载损耗的确定(见6.2)(示例卜··一·

图3负载杂散损耗修匀(见6.3.1.5)(示例)

GB/T20137-2006/IEC61972:2002

月吐吕

本标准等同采用IEC61972:2002《三相笼型感应电动机损耗和效率的确定方法》。

为了便于使用，本标准作出了下列编辑性修改:

a)将“感应电动机”一词改为“异步电动机”;

b)将“附加损耗”一词改为“杂散损耗”;

c)删除国际标准的前言。

235十QN+25一Q

其中，6.4.1中公式R,=RN,IEC原文中Q,为Q.有误，应为Q。

235+QN

附录C.1.3中公式里的二d.,IEC原文为n，有误，应为、。。

本标准的附录A、附录B为资料性附录，附录C为规范性附录。

本标准由中国电器工业协会提出。

本标准由全国旋转电机标准化技术委员会(SAC/TC26)归口

本标准由上海电器科学研究所(集团)有限公司负责起草，重庆赛力盟电机有限责任公司、江苏大中

电机股份有限公司、安徽皖南电机股份有限公司、淮安威灵清江电机制造有限公司、山西电机制造有限

公司、江苏远东电机制造有限公司等单位参加起草。

本标准主要起草人:金惟伟、李宝金、周奇、项怀余、孙跃、丁玉林、岳维平、顾进

本标准是首次制定。

GB/T20137-2006/IEC61972:2002

三相笼型异步电动机损耗和

效率的确定方法

范围

本标准适用于三相笼型异步电动机并规定了两种确定效率的方法:

·方法1:电动机试验使用转矩测量装置，根据测试结果求取负载杂散损耗值。

·方法2:电动机试验不测量转矩，采用推荐的负载杂散损耗值。

这两种方法的区别在于确定负载杂散损耗的方法不同。除非另有规定，否则方法1宜用于150kW

及以下的电动机。

关于确定效率的其他方法，见GB/T755.2-2003.

2规范性引用文件

下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有

的修改单(不包括勘误的内容)或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究

是否可使用这些文件的最新版本凡是不注日期的引用文件，其最新版本适用于本标准

GB755-2000旋转电机定额和性能(idtIEC60034-7:1996)

GB/T755.2-2003旋转电机(牵引电机除外)确定损耗和效率的试验方法((IEC60034-2:1972,

包括1995年第1号修改和1996年第2号修改，IDT)

IEC60044(全部)仪用互感器

IEC60051-1直接作用式模拟电测仪表及其附件第1部分:定义及通用要求

IEC60279带电测量交流电机绕组电阻

3术语、定义和符号

3.1术语和定义

本标准采用GB755-2000,GB/T755.2-2003及下面给出的术语和定义

3.11

铁耗corelosses

有效铁心中的损耗及其他金属件中空载杂散损耗之和

3.12

负载杂散损耗stray-loadlosses

a)负载电流在有效铁心及除导体之外的其他金属件中引起的损耗。

b)因磁通脉动而产生的电流在电动机的定子和转子绕组中引起的涡流损耗。

注:IEC61972标准称这项损耗为负载附加损耗。

32符号

cosgp-功率因数

f-~电源频率

线电流

Io—空载线电流

GB/T20137-2006/IEC61972:2002

(I'R)}—空载定子绕组损耗

(I2R),—定子绕组损耗

(I'R)—转子绕组损耗

(I'R)—额定负载热状态下绕组温度换算到基准冷却介质温度为25℃时的定子绕组损耗

(I'R),—额定负载热状态下绕组温度换算到基准冷却介质温度为25℃时的转子绕组损耗

ka-测功机转矩读数修正值

n—运行转速(见注)

P—极对数

P,-输人功率

P,—输出功率

P2N—额定输出功率

Pee—铁耗

尸—风摩耗

尸K—恒定损耗

P,—剩余