GB/T 25120-2023 English PDFUS$849.00 · In stock
Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 25120-2023: Railway applications - Traction transformers and inductors on board rolling stock Status: Valid GB/T 25120: Historical versions
Basic dataStandard ID: GB/T 25120-2023 (GB/T25120-2023)Description (Translated English): Railway applications - Traction transformers and inductors on board rolling stock Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: S35 Classification of International Standard: 29.280 Word Count Estimation: 42,427 Date of Issue: 2023-11-27 Date of Implementation: 2024-03-01 Older Standard (superseded by this standard): GB/T 25120-2010 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 25120-2023: Railway applications - Traction transformers and inductors on board rolling stock---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. ICS 29:280 CCSS35 National Standards of People's Republic of China Replace GB/T 25120-2010 Rail transit rolling stock traction transformers and reactors (IEC 60310:2016,MOD) Published on 2023-11-27 2024-03-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee Table of contentsPreface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 3:1 General definition 2 3:2 Definition of transformer 3 3:3 Definition of reactor 3 4 categories 4 4:1 Classification of transformers 4 4:2 Classification of reactors 4 5 Conditions of use 4 6 Load curve and rated current 5 6:1 Load curve 5 6:2 Rated current 5 7 Rated voltage and rated capacity of transformer winding 5 7:1 Grid side rated voltage 5 7:2 Secondary side rated voltage 5 7:3 Rated capacity of transformer 5 8 Transformer main tap 5 9 cooling 6 9:1 Identification of transformer and reactor cooling methods 6 9:2 Arrangement of symbols 6 9:3 Air-cooled transformer or reactor 7 10 Temperature rise limit 7 10:1 Classification of insulation materials 7 10:2 Temperature rise limit 7 11 Mechanical Design 8 12 Nameplate 8 12:1 General requirements 8 12:2 Transformer nameplate 8 12:3 Reactor nameplate 8 13 Inspection 9 13:1 Inspection classification 9 13:2 Inspection of transformers 9 13:3 Inspection of reactor 20 Appendix A (informative) Technical differences between this document and IEC 60310:2016 and their reasons 26 Appendix B (Informative) Load Curve 33 Appendix C (informative) Wet dielectric strength test of dry-type transformers and reactors 34 Reference 36ForewordThis document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting: This document replaces GB/T 25120-2010 "Traction transformers and reactors for rail transit rolling stock" and is consistent with GB/T 25120- Compared with:2010, in addition to structural adjustments and editorial changes, the main technical changes are as follows: a) Added the terms impedance voltage, cyclic peak voltage, rated impulse voltage, load curve, tolerance and their definitions (see Chapter 3); b) Changed the classification of transformers and reactors (see Chapter 4, Chapter 3 of the:2010 edition); c) Added conditions for use (see Chapter 5); d) Added load curve and rated current regulations (see Chapter 6); e) The grid-side rated voltage has been changed to the nominal voltage of the traction system (see 7:1, 5:1 of the:2010 edition); f) Changed the requirements for air-cooled transformers or reactors (see 9:3, 7:3 of the:2010 edition); g) Changed the temperature rise limit of the transformer winding of the inflatable unit and increased the temperature limit of the liquid (see Chapter 10,:2010 edition 8:2); h) Added the content of mechanical design (see Chapter 11); i) Changed the requirements for nameplates (see Chapter 12, Chapter 9 of the:2010 edition); j) Added the functional inspection, quality, polarity and connection group, insulation resistance, wet dielectric strength test, and terminal voltage withstand test of the transformer: Test, cable dielectric strength test, partial discharge test, noise measurement under converter power supply, leakage flux density measurement, frequency response Analyze FRA and other contents (see 13:2:1, 13:2:4, 13:2:6, 13:2:12, 13:2:13, 13:2:14, 13:2:17:3, 13:2:18, 13:2:19); k) Change the full-wave impulse withstand voltage test to the lightning impulse withstand voltage test (see 13:2:1, 13:3:1,:2010 version of 10:2:1, 10:3:1); l) Added tolerance provisions for winding resistance and quality, and added content about the fluctuation range of a single winding in impedance value (see 13:2:2); m) Changed the tolerance of impedance voltage (see 13:2:2, 10:2:2 of the:2010 edition); n) Changed the preliminary inspection to visual inspection and functional inspection (see 13:2:3, 10:2:1 and 10:3:1 of the:2010 version); o) Changed the measurement voltage content of no-load current and loss in type inspection (see 13:2:7:2, 10:2:6:1 of the:2010 edition); p) Added short-circuit impedance calculation requirements (see 13:2:8); q) Changed the content of total loss measurement (see 13:2:10, 10:2:9 of the:2010 version); r) Added the temperature rise test of dry-type transformers/reactors (see 13:2:11:3); s) Changed the dielectric test voltage value (see 13:2:13, 10:2:11 of the:2010 edition); t) Added power frequency withstand voltage, induction withstand voltage and lightning impulse withstand voltage test wiring diagrams (see 13:2:13:2, 13:2:13:3 and 13:2:13:4); u) The provisions on short-circuit capacity in short-circuit resistance performance test are deleted (see 10:2:12 of the:2010 edition); v) The requirements for functional vibration tests for impact and vibration tests have been changed, and the tests that should be repeated after impact and vibration tests have been changed: Project (see 13:2:16, 10:2:13 of the:2010 version); w) Added vibration test, short-circuit performance test, noise measurement, leakage flux density measurement, partial discharge test of reactor applied current test, wet dielectric strength test, insulation resistance test and other tests (see 13:3:1, 13:3:9, 13:3:10, 13:3:12, 13:3:14, 13:3:15, 13:3:16); x) The mass tolerance of the reactor has been increased, and the content of the deviation of the same reactor has been added (see 13:3:2); y) The contents of winding resistance and loss tolerance have been changed (see 13:3:2, 10:3:2 of the:2010 edition); z) Changed the measurement of pulse current reactor and DC reactor to the measurement of incremental inductance and differential inductance, and added micro Contents of test methods for partial inductance (see 13:3:7:3, 13:3:7:4, 10:3:6:2, 10:3:6:3 of the:2010 edition); aa) Added test method for withstand voltage test between terminals (see 13:3:10:4): This document is modified to adopt IEC 60310:2016 "Traction transformers and reactors for rail transit rolling stock": Compared with IEC 60310:2016, this document has made the following structural adjustments: ---9:3 corresponds to 9:2:3 in IEC 60310:2016; ---Adjusted the internal structure of Chapter 10 and Chapter 12; ---Adjusted the internal structures of 13:2:1, 13:2:8, 13:2:11, 13:2:13:4, 13:2:15 and 13:2:16; ---Table 9~Table 11 correspond to Table 10~Table 12 in IEC 60310:2016, and Table 9 in IEC 60310:2016 is deleted; ---13:2:17 corresponds to 13:2:18 in IEC 60310:2016; ---13:2:18 corresponds to 13:2:19 in IEC 60310:2016; ---13:2:19 corresponds to 13:2:20 in IEC 60310:2016; ---Appendix B corresponds to Appendix E in IEC 60310:2016, and Appendix C corresponds to Appendix D in IEC 60310:2016: Compared with IEC 60310:2016, this document has many technical differences: The involved clauses are marked with vertical Single lines (|) are marked: A list of these technical differences and their causes is provided in Appendix A: The following editorial changes have been made to this document: ---Incorporated the amendments to IEC 60310:2016/COR1:2018, the outer margins of the clauses involved are marked with vertical Double lines (‖) are marked; ---Added technical requirements for corresponding inspection items (see Table 5 and Table 9); ---Added "Note: The same winding refers to the winding with the same design impedance:" (See Table 6); ---Changed the description method of temperature rise test (see 13:2:11, 13:2:11 of IEC 60310:2016); ---The description of the specific method of partial discharge test has been changed: The method has been described in the referenced standard and will not be described again in this document: (See 13:2:14, 13:2:14 of IEC 60310:2016); ---The description of the specific method of short-circuit resistance test has been changed: The method has been described in the referenced standard and will not be repeated in this document: Description (see 13:2:15, 13:2:15 of IEC 60310:2016); ---Changed the description of specific methods of shock and vibration testing: The methods have been described in the referenced standards and will not be repeated in this document: Description (see 13:2:16, 13:2:16 of IEC 60310:2016); ---Delete content specified by the user and negotiated between the user and the manufacturer, refer to relevant standards and implement it in a domestically operable manner (see 13:3:10:4, D:3, Appendix E of IEC 60310:2016); ---Added Appendix A (informative); ---Deleted Appendix A, Appendix B and Appendix C in IEC 60310:2016; ---Changed the reference list: Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents: This document is proposed by the National Railway Administration: This document is under the jurisdiction of the National Rail Transit Electrical Equipment and Systems Standardization Committee (SAC/TC278): This document was drafted by: CRRC Zhuzhou Electric Co:, Ltd:, CRRC Zhuzhou Electric Locomotive Research Institute Co:, Ltd:, China Railway Scientific Research Institute of Standards and Metrology of China Academy Group Co:, Ltd:, CRRC Qingdao Sifang Co:, Ltd:, CRRC Datong Electric Locomotive Co:, Ltd: CRRC Dalian Locomotive and Rolling Stock Co:, Ltd: The main drafters of this document: Long Guzong, Liang Xiangxiang, Li Xueming, Xu Shaolong, Yang Peng, Liu Jiancheng, Yang Fan, Liu Zhen, and Dai Xiaofeng: This document was first published in:2010 and this is the first revision: Rail transit rolling stock traction transformers and reactors1 ScopeThis document specifies the classification, usage conditions, general characteristics, and testing of traction transformers, auxiliary transformers and reactors installed on rolling stock: Test items and test methods: This document applies to traction transformers and auxiliary transformers installed on rolling stock: It also applies to rolling stock traction circuits and auxiliary transformers: Various types of reactors connected to the circuit: Note: When the requirements in GB/T 1094 (all parts) do not conflict with this document or national standards involving traction applications, they may be applied to traction transformers and Reactor: This document can also be applied to the three-phase AC grid-side traction transformer of the electric multiple unit and the single-phase and multi-phase auxiliary circuits of the rolling stock: Transformers, except for instrument transformers and transformers with rated output power of less than 1 kVA for single-phase and less than 5 kVA for multi-phase: This document does not apply to ancillary equipment installed on transformers or reactors, such as tap changers, resistors, radiators, fans, etc:, which Conduct tests in accordance with relevant standards:2 Normative reference documentsThe contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document: GB/T 1094:1-2013 Power transformers Part 1: General provisions (IEC 60076-1:2011, MOD) Note: There is no technical difference between the quoted content of GB/T 1094:1-2013 and the quoted content of IEC 60076-1:2011: GB/T 1094:2 Power transformers Part 2: Temperature rise of liquid-immersed transformers (GB/T 1094:2-2013, IEC 60076-2: 2011,MOD) GB/T 1094:3 Power transformers Part 3: Insulation levels, insulation tests and external insulation air gaps (GB/T 1094:3- 2017,IEC 60076-3:2013,MOD) GB/T 1094:5 Power transformer Part 5: Ability to withstand short circuit (GB/T 1094:5-2008, IEC 60076-5: 2006,MOD) GB/T 1094:6 Power transformer Part 6: Reactor (GB/T 1094:6-2011, IEC 60076-6:2007, MOD) GB/T 1094:10 Power transformer Part 10: Sound level determination (GB/T 1094:10-2022, IEC 60076-10: 2016,MOD) GB/T 1094:11 Power transformers Part 11: Dry-type transformers (GB/T 1094:11-2022, IEC 60076-11: 2018,MOD) GB/T 1094:18 Power transformer Part 18: Frequency response measurement (GB/T 1094:18-2016, IEC 60076-18: 2012,MOD) GB/T 1402 Rail transit traction power supply system voltage (GB/T 1402-2010, IEC 60850:2007, MOD) GB 2536 Electrical fluids Unused mineral insulating oil for transformers and switches (GB 2536-2011, IEC 60296: 2003,MOD) GB/T 2900:36 Electrical terminology electric traction (GB/T 2900:36-2021, IEC 60050-811:2017, IDT) GB/T 7354 High voltage test technology partial discharge measurement (GB/T 7354-2018, IEC 60270:2000, MOD) ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 25120-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 25120-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 7 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 25120-2023_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 25120-2023_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+ countriesQuestion 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.Question 5: Should I purchase the latest version GB/T 25120-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 25120-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
