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GB/T 46176-2025Reliability test methods of power module in voltage sourced converter (VSC) valves (English PDF)

柔性直流换流阀功率模块可靠性试验方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 5, 2025

Implementation date

May 1, 2026

Scope

GB/T 46176-2025 is the English-translated version of 柔性直流换流阀功率模块可靠性试验方法.

GB/T 46176-2025 is the Chinese standard "Reliability test methods of power module in voltage sourced converter (VSC) valves". Its scope clause reads: This document defines the terminology and definitions related to reliability testing of flexible DC converter valve power modules, and describes the reliability testing methods, including...

It includes the general requirements for reliability testing, the various reliability tests, and the presentation of the reliability test results. This document applies to reliability testing of power modules for flexible DC converter valves.

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Document preview — GB/T 46176-2025

National Standard of the People's Republic of China

ICS: 29.200
Classification: K 46

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1.Scope
2 Normative References
3.Terms and Definitions
3.1 Valve Component Related Terminology
3.2 Valve Structure Related Terminology
3.3 Reliability-Related Terminology
4 General Rules
4.1 General Requirements
4.2 Environmental Conditions
4.3 Test Category
4.4 Sample
4.5 Test Item
4.6 Reliability Test Failure Statistics and Criteria
5.Bypass test 6.
5.1 Fault Bypass Test
5.2 Bypass switch malfunction test
6.Overvoltage and short-circuit test
6.1 Experimental Objectives
6.2 Sample
6.3 Test Requirements and Methods
7.Overcurrent turn-off test
7.1 Experimental Objectives
7.2 Sample
7.3 Test Requirements
7.4 Test Methods
8.Short-circuit current test 7.
8.1 Experimental Objective
8.2 Sample
8.3 Test Requirements
8.4 Test Methods
9 Power Cycling Test
9.1 Experimental Objective
9.2 Sample
9.3 Test Requirements
9.4 Test Methods
10 Electromagnetic compatibility (immunity) test
10.1 Experimental Objective
10.2 Sample
10.3 Test Requirements and Methods
11 Environmental adaptability test
11.1 Low Temperature Test
11.2 High Temperature Test
11.3 Temperature Change Test
11.4 Alternating Damp Heat Test
11.5 Vibration Test
11.6 Impact Test
11.7 Salt spray test (optional)
11.8 Mold Test (Optional)
11.9 Atmospheric Neutron Accelerated Irradiation Experiment (Optional)
12 Component-level reliability testing
12.1 General Rules
12.2 Dual-pulse test for turn-off semiconductor devices
12.3 Short-circuit protection test for turn-off semiconductor devices
12.4 Thermal stability test of DC capacitor
12.5 DC capacitor terminal extreme condition voltage withstand test
12.6 DC Capacitor Damped Discharge Test
12.7 DC Capacitor Durability Test
12.8 Long-term high and low temperature endurance test of power module secondary board
13.Expression of Reliability Test Results

1 Scope

This document defines the terminology and definitions related to reliability testing of flexible DC converter valve power modules, and describes the reliability testing methods, including...

It includes the general requirements for reliability testing, the various reliability tests, and the presentation of the reliability test results.

This document applies to reliability testing of power modules for flexible DC converter valves.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 2423.1-2008 Environmental testing of electrical and electronic products - Part 2.Test methods - Test A. Low temperature

GB/T 2423.2-2008 Environmental testing of electrical and electronic products - Part 2.Test methods - Test B. High temperature

GB/T 2423.4-2008 Environmental testing of electrical and electronic products - Part 2.Test methods - Test Db. Alternating damp heat (12h) (12-hour cycle)

GB/T 2423.5-2019 Environmental Testing - Part 2.Test Methods - Test Ea and Guidelines. Impact

GB/T 2423.17-2024 Environmental Testing - Part 2.Test Methods - Test Ka. Salt Spray

GB/T 2423.22-2012 Environmental Testing - Part 2.Test Methods - Test N. Temperature Change

GB/T 2900.99-2016 Reliability of Electrical Engineering Terminology

GB/T 13498-2017 Terminology for High Voltage Direct Current Transmission

GB/T 17626.2-2018 Electromagnetic compatibility testing and measurement techniques - Electrostatic discharge immunity test

GB/T 17626.3-2023 Electromagnetic compatibility testing and measurement techniques - Part 3.Radio frequency electromagnetic field radiated immunity testing

GB/T 17626.4-2018 Electromagnetic compatibility testing and measurement techniques - Electrical fast transient/burst immunity test

GB/T 17626.5-2019 Electromagnetic compatibility testing and measurement techniques - Surge (impulse) immunity test

GB/T 17626.6-2017 Electromagnetic compatibility testing and measurement techniques - Conducted disturbance immunity induced by radio frequency fields

GB/T 17626.8-2006 Electromagnetic compatibility testing and measurement techniques - Power frequency magnetic field immunity test

GB/T 17626.9-2011 Electromagnetic compatibility testing and measurement techniques - Pulse magnetic field immunity test

GB/T 17626.10-2017 Electromagnetic compatibility testing and measurement techniques - Damped oscillating magnetic field immunity test

GB/T 17626.18-2016 Electromagnetic compatibility testing and measurement techniques - Damped oscillating wave immunity test

GB/T 17702-2021 Power Electronic Capacitors

GB/T 27025-2019 General requirements for the competence of testing and calibration laboratories

GB/T 33348-2024 Electrical testing of valves in voltage source converters for high voltage direct current transmission

GB/T 34118-2017 Terminology for Voltage Source Converters for High Voltage Direct Current Systems

GB/T 40865-2021 Terminology for Flexible DC Transmission

GB 50260-2013 Code for Seismic Design of Power Facilities

NB/T 11388-2023 DC Support Capacitor for Flexible DC Transmission Converter Valve

GB/T 39572.1 | GB/T 37404 | GB/T 31487.3 | GB/T 31487.1 | GB/T 30425 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 25 pages — is available in the English PDF.

Referenced standards

Normative references

Editions of GB/T 46176

Edition	Title	Revision	Status
GB/T 46176-2025	Reliability test methods of power module in voltage sourced converter (VSC) valves	current edition	Current

This page sells the current edition, GB/T 46176-2025. Earlier editions are listed for reference only.

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