GB/T 20838-2007 (English Version) PDF

Standard No.: GB/T 20838-2007
Language: Chinese, Available in English version
Release Date: 2007
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 20838-2007

Scope: This standard specifies the performance parameters, technical requirements, test items, markings, packaging, transportation and storage of oil-immersed converter transformers (hereinafter referred to as transformers) for DC transmission of ±500kV level and below, and gives some information in Appendix A. Examples of relevant performance parameters of specific products. This standard applies to oil-immersed converter transformers for DC transmission of ±500kV and below.

GB/T 20838-2007 Referenced Document

GB 1094.1 Power transformers.Part 1: General*， 2013-12-17 Update
GB 1094.2 Power transformers.Part 2:Temperature rise for liquid-immersed transformers*， 2013-12-17 Update
GB 1094.3 Power transformers Part 3: Insulation levels,dielectric tests and external clearances in air
GB 1094.5 Power transformers.Part 5:Ability to withstand short circuit*， 2008-09-19 Update
GB/T 18494.2-2007 Covertor transformers Part 2: Transformers for HVDC applications
IEC 60296:2003 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear

2007 GB/T 20838-2007 Specification and technical requirements of oil-immersed convertor transformers for HVDC applications