GB/T 20834-2024發(fā)電電動機技術要求

ICS

29.160

CCS

K20

中華人民共和國國家標準

GB/T20834—2024

代替GB/T20834—2014

發(fā)電電動機技術要求

Technicalrequirements

formotor-generator

2024-09-29發(fā)布2025-04-01實施

國家市場監(jiān)督管理總局發(fā)布

國家標準化管理委員會

GB/T20834—2024

目次

前言

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Ⅲ

1

范圍

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1

2

規(guī)范性引用文件

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3

術語和定義

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4

現(xiàn)場運行條件

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1

5

定額與參數(shù)

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2

5.1

容量與功率

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2

5.2

額定電壓

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2

5.3

額定功率因數(shù)

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2

5.4

額定轉(zhuǎn)速

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2

5.5

運行期間電壓和頻率的變化

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2

5.6

效率和損耗

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3

5.7

電氣參數(shù)和時間常數(shù)

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4

5.8

總諧波畸變率（THD）

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4

6

溫度

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4

6.1

溫升

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4

6.2

定子溫升的測量

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5

6.3

非基準運行條件和定額時溫升限值的修正

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5

6.4

軸承溫度

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5

7

運行特性及電氣連接

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5

7.1

特殊運行要求

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5

7.2

電動工況起動方式

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5

7.3

電氣連接

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5

8

絕緣系統(tǒng)

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5

9

機械性能與設計

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6

9.1

旋轉(zhuǎn)方向

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6

9.2

最大設計轉(zhuǎn)速

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6

9.3

臨界轉(zhuǎn)速

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6

9.4

振動分析與固有頻率

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6

9.5

結(jié)構強度和剛度

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6

9.6

起動和停機

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6

9.7

超速

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7

10

振動與擺度

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7

11

噪聲

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7

Ⅰ

GB/T20834—2024

12

結(jié)構要求

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7

13

通風及冷卻系統(tǒng)

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7

14

制動系統(tǒng)

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8

15

控制保護系統(tǒng)的裝置及元件

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8

16

滅火系統(tǒng)

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8

17

標識

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8

18

材料及部件存儲

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9

19

工廠及現(xiàn)場試驗

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9

19.1

工廠試驗

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9

19.2

現(xiàn)場試驗

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9

20

供貨

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9

21

試運行及保證期

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9

21.1

試運行

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9

21.2

交接與保證期

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9

Ⅱ

GB/T20834—2024

前言

本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結(jié)構和起草規(guī)則》的規(guī)

定起草。

本文件代替GB/T20834—2014《發(fā)電電動機基本技術條件》，與GB/T20834—2014相比，除結(jié)

構調(diào)整和編輯性改動外，主要技術變化如下：

—在范圍中增加了產(chǎn)品標識、材料及部件存儲等描述性內(nèi)容（見第1章）；

—刪除了發(fā)電電動機、靜止變頻裝置、靜止變頻裝置起動、背靠背同步起動和黑起動的術語和定

義（見2014年版的3.1、3.2、3.3、3.4和3.5）；

—將第4章名稱“使用環(huán)境條件”更改為“現(xiàn)場運行條件”（見第4章，2014年版的第4章）；

—刪除了現(xiàn)場運行條件中“安裝在掩蔽的廠房內(nèi)”的要求（見2014年版的第4章）；

—更改了使用地點地震烈度的內(nèi)容（見第4章，2014年版的第4章）；

—將第5章名稱“額定容量及主要參數(shù)”更改為“定額與參數(shù)”（見第5章，2014年版的第

5章）；

—增加了發(fā)電工況額定容量和電動工況額定功率的說明（見5.1）；

—增加了額定電壓的內(nèi)容（見5.2）；

—增加了發(fā)電工況額定容量不大于150MVA時的額定功率因數(shù)要求（見5.3.1）；

—增加了額定轉(zhuǎn)速的內(nèi)容（見5.4）；

—更改了圖1頻率的限值（見5.5.1，2014年版的5.3.1）；

—更改了計算效率時發(fā)電電動機損耗的相關要求（見5.6.2，2014年版的5.4.2）；

—更改了線電壓波形的總諧波畸變率（見5.8，2014年版的5.6）；

—刪除了兩層及以上的轉(zhuǎn)子繞組的溫升限值要求（見2014年版的6.1）；

—更改了表1備注的要求（見6.1，2014年版的6.1）；

—刪除了非基準運行條件和定額時溫升限值的修正的具體內(nèi)容（見2014年版的6.2.1、6.2.2、

6.2.3）；

—增加了定子溫升的測量（見6.2）；

—增加了溫升限值的修正標準（見6.3）；

—增加了溫度傳感器埋置深度的要求（見6.4.2）；

—增加了電氣連接的內(nèi)容（見7.3）；

—刪除了定子線棒可在制造廠進行局部放電試驗的內(nèi)容（見2014年版的8.2）；

—更改了旋轉(zhuǎn)方向的描述（見9.1，2014年版的9.1）；

—增加了結(jié)構強度和剛度的要求（見9.5）；

—更改了日平均起停機次數(shù)（見9.6，2014年版的9.7）；

—增加了發(fā)電電動機在設計使用年限內(nèi)承受滿載甩負荷和最大設計轉(zhuǎn)速的要求（見9.7）；

—更改了振動和擺度的要求（見第10章，2014年版的9.4、9.5）；

—更改了噪聲的要求（見第11章，2014年版的9.6）；

—刪除了勵磁系統(tǒng)（見2014年版的第13章）；

—更改了磁極的相關要求（見12.5，2014年版的10.7）；

—增加了磁極線圈引出線的要求（見12.6）；

—增加了熱套滑轉(zhuǎn)子的要求（見12.8）；

—增加了推力軸承和導軸承瓦的結(jié)構和幾何形狀的要求（見12.10）；

—增加了軸承油冷卻器冷卻水中斷的要求（見13.3）；

Ⅲ

GB/T20834—2024

—更改了空氣冷卻器及油冷卻器工作水壓的范圍（見13.4，2014版的11.3）；

—增加了板式熱交換器耐壓的要求（見13.5）；

—增加了集電環(huán)和碳刷通風冷卻的要求（見13.6）；

—更改了制動塊的使用壽命（見14.3，2014年版的12.3）；

—更改了發(fā)電電動機各位置溫度傳感器的數(shù)量和位置要求（見15.2，2014年版的14.3）；

—增加了滅火系統(tǒng)的要求（見第16章）；

—更改了工廠試驗的內(nèi)容（見19.1，2014年版的16.1）；

—增加了現(xiàn)場試驗的適用標準（見19.2，2014年版的16.2）；

—增加了機組通過15d試運行后交接的內(nèi)容（見21.2）。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機構不承擔識別專利的責任。

本文件由中國電器工業(yè)協(xié)會提出。

本文件由全國大型發(fā)電機標準化技術委員會（SAC/TC511）歸口。

本文件起草單位：哈爾濱電機廠有限責任公司、南方電網(wǎng)調(diào)峰調(diào)頻發(fā)電有限公司儲能科研院、國網(wǎng)

新源控股有限公司、哈爾濱大電機研究所有限公司、東方電氣集團東方電機有限公司、浙富控股集團股

份有限公司、中國電建集團北京勘測設計研究院有限公司、江蘇國信溧陽抽水蓄能發(fā)電有限公司、三峽

國際能源投資集團有限公司、中國長江三峽集團有限公司內(nèi)蒙古分公司、中國三峽建工（集團）有限公

司、中國電建集團中南勘測設計研究院有限公司、廣東省水利電力勘測設計研究院有限公司、南方電網(wǎng)

儲能股份有限公司、華電電力科學研究院有限公司東北分公司、國網(wǎng)湖北省電力有限公司電力科學研究

院、湖北清江水電開發(fā)有限責任公司、南京南瑞繼保電氣有限公司、中國電建集團華東勘測設計研究院

有限公司、上海福伊特水電設備有限公司、東芝水電設備（杭州）有限公司、昆明電機廠有限責任公

司、南方電網(wǎng)調(diào)峰調(diào)頻發(fā)電有限公司工程建設管理分公司、青島瑞萊斯機械有限公司、無錫普天鐵心股

份有限公司。

本文件主要起草人：劉平安、王艷武、馬一鳴、林雪成、陳滿、夏斌強、孫玉田、駱林、趙志強、

楊梅、肖先照、劉喜泉、鄒祖冰、蓋斐、唐波、謝小輝、曾廣移、王健軍、崔一鉑、張晉境、張琦雪、

馮真秋、張忠誠、吳金水、宋厚祁、劉濤、羅少煊、王向陽。

本文件及其所代替文件的歷次版本發(fā)布情況為：

—2007年首次發(fā)布為GB/T20834—2007；

—2014年第一次修訂；

—本次為第二次修訂。

Ⅳ

GB/T20834—2024

發(fā)電電動機技術要求

1范圍

本文件規(guī)定了發(fā)電電動機及其附屬設備的總體技