GB/T 46131-2025 English PDF - UHV Transformer Tap-Changer Standard
Technical requirements and test methods for tap-changer for ultra high voltage transformers
Standard Details
GB/T 46131-2025 (English Version)
- English translated version
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GB/T 46131-2025 (Chinese Version)
- Chinese original version
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Standard Introduction
This document specifies the basic requirements, parameter requirements, technical requirements, marking, packaging, transportation and storage for tap-changers used in 1000 kV AC transformers, and describes the corresponding test methods.
This document is applicable to the design and acceptance of tap-changers for 1000 kV AC transformers (including autotransformers and step-up transformers).
Standard Catalog
The standard consists of the following main sections:
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 General Requirements
5 Parameter Requirements
6 Technical Requirements for Off-circuit Tap Changers
7 Tests for Off-circuit Tap Changers
8 Technical Requirements for On-load Tap Changers
9 Tests for On-load Tap Changers
10 Marking, Packaging, Transportation and Storage
Appendix A (Informative) Contact Arrangement for Reversing and Regulating Operations of Off-circuit Tap Changers for UHV AC Autotransformers
Appendix B (Normative) Seismic Test Methods for Tap Changers Used in UHV AC Transformers
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