JB/T 8639-1997
Guide for temperature rise test of oil-immersed power transformers with analysis of dissolved gases in oil (English Version)
- Standard No.
- JB/T 8639-1997
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Machinery
- Status
- Latest
- JB/T 8639-1997
- Scope
- This standard specifies the temperature rise test methods and requirements for the analysis of dissolved gases in the belt oil of oil-immersed power transformers. This standard applies to the following oil-immersed power transformers: a) Three-phase transformers with independent windings, rated capacity ≥ 120MVA; b) Single-phase transformers with independent windings, rated capacity ≥ 40MVA per column; c) Three-phase autotransformers Equivalent rated capacity or single-phase equivalent rated capacity per column is equivalent to the values listed in a) and b) respectively; d) Although the rated capacity of the transformer is smaller than the limit shown in a), b) or c), its leakage The magnetic flux or leakage magnetic field is stronger than or equivalent to the above three situations.
JB/T 8639-1997 history
- 1970 JB/T 8639-1997 Guide for temperature rise test of oil-immersed power transformers with analysis of dissolved gases in oil
