BS 5800:1979
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Guide for the interpretation of the analysis of gases in transformers and other oil-filled electrical equipment in service
Hardcopy , PDF
06-15-1999
English
10-31-1979
National foreword
Cooperating organizations
1 Introduction
2 Scope
3 Recommended basic method for interpreting gas
analysis
3.1 Gases generated from oil
3.2 Levels at which dissolved gases are significant
3.3 Diagnosis of faults from relative concentrations of
individual gases dissolved in oil
4 Degradation of cellulosic insulation
4.1 Examining CO2 and CO concentrations found dissolved
in oil
4.2 Examining CO2 and CO concentrations in free gases
found in the gas-collecting relay
5 Application of diagnostic method to free gases in
a gas-collecting relay
5.1 Calculation of dissolved gas concentrations
equivalent to free gas concentrations
Appendix
A Information obtained from rates of gas production
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