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GB/T 25120-2023Railway applications - Traction transformers and inductors on board rolling stock (English PDF)

轨道交通机车车辆牵引变压器和电抗器

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

November 27, 2023

Implementation date

March 1, 2024

Scope

GB/T 25120-2023 is the English-translated version of 轨道交通机车车辆牵引变压器和电抗器.

GB/T 25120-2023 is the Chinese standard "Railway applications - Traction transformers and inductors on board rolling stock".

Its scope clause reads: This 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:. Its clauses include normative reference documents.

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Document preview — GB/T 25120-2023

National Standard of the People's Republic of China

ICS: 29.280
Classification: S 35
Replacing: GB/T 25120-2010

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 categories
5 Conditions of use
6 Load curve and rated current
7 Rated voltage and rated capacity of transformer winding
8 Transformer main tap
9 cooling
10 Temperature rise limit
11 Mechanical Design
12 Nameplate
13 Inspection
Appendix A (informative) Technical differences between this document and IEC 60310:2016 and their reasons
Appendix B (Informative) Load Curve
Appendix C (informative) Wet dielectric strength test of dry-type transformers and reactors

1 Scope

This 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 documents

The 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)

GB/T 25123.2 | GB/T 25123.1 | GB/T 25123.4 | GB/T 25118 | GB/T 25119 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 36 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 1094.2 · GB/T 1094.5

Cited by

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