IEEE C57.139 : 2010

Table of Contents

1 Overview
2 Normative references
3 Definitions
4 Nature, purpose, and basis for DGA for LTCs
5 Norms for LTC DGA
6 Procedure for interpretation of LTC DGA data
Annex A (informative) - Generic classification
        scheme for LTC types
Annex B (informative) - Sample procedures for
        statistical derivation of limits
Annex C (informative) - Case histories
Annex D (informative) - Application of the Duval
        Triangle 2 to DGA in LTCs
Annex E (informative) - Gas ratio nomograms for
        DGA in LTCs
Annex F (informative) - Bibliography

Abstract

Establishes methods of testing and evaluating dissolved gases in mineral based transformer oils found in load tap changers (LTCs).

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN