GB/T 46131-2025 Active National standards

GB/T 46131-2025 Technical requirements and test methods for tap-changer for ultra high voltage transformers

Publish Date: 2025-08-29 Implement Date: 2025-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 46131-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: The power system

ICS Name: Comprehensive Electrical Engineering

Publish Date: 2025-08-29

Implement Date: 2025-12-01

Pages: 40 pages

Scope

This document specifies the basic requirements, parameter requirements, technical requirements, marking, packaging, transportation, and storage for tap changers used in 1,000 kV AC transformers, and describes the corresponding test methods.
This document is applicable to the design and acceptance of tap changers used in 1,000 kV AC transformers (including autotransformers and step-up transformers).

Development Information

Word Count: 65 Thousand words Pages: 40 pages

Referenced Standards

GB/T 2900.95-2015 Electrotechnical terminology—transformers,voltage regulators and reactors GB 4208-1993 Degrees of protection provided by enclosure (IP code) GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 4797.4-2006 Environmental conditions appearing in nature for electric and electronic products—Solar radiation and temperature GB/T 4797.4-2019 Classification of environmental conditions—Environmental conditions appearing in nature—Solar radiation and temperature GB/T 10230.1-2019 Tap-changers—Part 1:Performance requirements and test methods GB/T 10230.2-2007 Tap-changers—Part 2:Application guide GB/T 17623-1998 Determination of componental contents of gases dissolved in insulating oil by gas chromatography method GB/T 17623-2017 Determination of componental contents of gases dissolvedin insulating oil by gas chromatography method GB/T 42558.1-2023 Seismic techniques of electrical equipment in converter station on plateau—part 1:Directives for seismic test and evaluation GB 50260-2013 Code for seismic design of electrical installations DL/T 722-2014 Guidelines for analyzing and evaluating the dissolved gases in transformer oil DL/T 722-2000 Guidelines for analyzing and evaluating the dissolved gases in transformer oil GB/T 10230.2-2025 Tap changers—Part 2:Application guidelines

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