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GB/T 40294-2021 English PDF

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US$1024.00 · In stock
Delivery: <= 8 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 40294-2021: Methods for determining electrically excited synchronous machine quantities from tests
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 40294-2021	1024	Add to Cart	8 days	Methods for determining electrically excited synchronous machine quantities from tests	Valid

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Basic data

Standard ID: GB/T 40294-2021 (GB/T40294-2021)
Description (Translated English): Methods for determining electrically excited synchronous machine quantities from tests
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K21
Word Count Estimation: 54,579
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40294-2021: Methods for determining electrically excited synchronous machine quantities from tests

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Methods for determining electrically excited synchronous machine quantities from tests ICS 29.160.01 CCSK21 National Standards of People's Republic of China Test Method for Determining Parameters of Electrically Excited Synchronous Motor fromtests (IEC 60034-4-1.2018, Rotationelectricalmachines-Part 4-1.Methods tests,IDT) Released on 2021-05-21 2021-12-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Symbol 5 5 Test overview 7 6 Test procedure 9 7 Determine each parameter 21 Appendix A (Normative) Test Cross Reference 45 Appendix B (Normative) Frequency response characteristic calculation scheme 47 Appendix C (Normative) Common motor models 49 Reference 51

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. The translation method used in this document is equivalent to the adoption of IEC 60034-4-1.2018 ``Rotating Electrical Machines Part 4-1.Determining the Parameters of Electrically Excited Synchronous Motors'' Number of test methods." The Chinese documents that have consistent correspondence with the normatively cited international documents in this document are as follows. ---GB/T 25442-2018 Rotating electrical machines (except traction motors) Test methods for determining loss and efficiency (IEC 60034-2-1. 2014, IDT). The following editorial changes have been made to this document. ---Modified the file name. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by the China Electrical Equipment Industry Association. This document is under the jurisdiction of the National Standardization Technical Committee for Rotating Electric Machines (SAC/TC26). Drafting organizations of this document. Shanghai Electrical System Energy-saving Engineering Technology Research Center Co., Ltd., Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd. Company, Dongfang Electric Group Dongfang Electric Co., Ltd., Chongqing University, Shanghai Marathon Innovation Electric Co., Ltd., CMC International Engineering Design and Research Institute Research Institute Co., Ltd., Kangfu Technology Co., Ltd., Harbin Institute of Large Electric Machinery, CRRC Yongji Electric Co., Ltd., Shanghai Electric Group Haidian Electric Co., Ltd., Shandong Huali Electric Group Co., Ltd., Xi'an Taifu Cima Electric Co., Ltd., Wuxi Ourijing Electric Co., Ltd. Co., Ltd., Zhejiang Linhai Zhefu Motor Co., Ltd., Taizhou Taicheng Mechanical and Electrical Equipment Co., Ltd., Shanghai Electrical Equipment Testing Institute Co., Ltd., Shanghai Haidianke Motor Technology Co., Ltd. The main drafters of this document. Wang Chuanjun, Zhou Hongfa, Jin Weiwei, Zhou Guanghou, Zhou Weiqiang, Wang Wei, Ni Lixin, Wan Yong, Zheng Shouhai, Zhang Wenbin, Chen Zhixing, Tong Zhisong. Test Method for Determining Parameters of Electrically Excited Synchronous Motor

1 Scope

This document applies to three-phase synchronous motors with a rated power of 1kVA and above. The test method of this document is mainly applicable to synchronous motors with excitation windings and slip rings and brushes in the excitation power supply circuit. Certain tests of brushless synchronous motors require special treatment; for permanent magnet motors, the applicability of the test method is limited, and special measures should be taken. To prevent permanent demagnetization of the motor. This document does not apply to axial flux motors and special synchronous motors, such as induction motors, transverse flux motors and reluctance motors. Any or all of the test items described in this document are not required to be performed for any specified motor. Some specific tests can be made according to The agreement between the supplier and the customer is carried out.

2 Normative references

The contents of the following documents constitute indispensable clauses of the documents through normative references in the text. Among them, dated reference documents, Only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document. file. GB/T 755-2019 Rotating electric machine rating and performance (IEC 60034-1.2017, IDT) IEC 60034-2-1 Rotating electrical machines Part 2-1.Test methods to determine loss and efficiency (except traction motors) (Rotating electricalmachines-Part 2-1.Standardsmethodsfordetermininglossesandefficiencyfromtests(ex- cludingmachinesfortractionvehicles)] IEC 60051 (all parts) Direct acting analog indicating electrical measuring instrument and its accessories (Directingindicatinganalogue electricalmeasuringinstrumentsandtheiraccessories)

3 Terms and definitions

The following terms and definitions apply to this document. ISO and IEC maintain a database of terminology used for standardization at the following websites. 3.1 Initial starting impedance (synchronous motors) initial starting impedance (synchronous motors) The ratio of the applied armature voltage to the steady-state average armature current when the motor is at a standstill. 3.2 Direct-axis synchronous reactance When the motor is running at the rated speed, the continuous AC fundamental wave induced by the total flux linkage of the straight-axis armature winding generated by the straight-axis armature current The ratio of voltage to AC fundamental current. [Source. GB/T 2900.25-2008,411-50-07] ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 40294-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 40294-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 5 ~ 8 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 40294-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 40294-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.