INSULATED BUSHINGS - GUIDE FOR THE INTERPRETATION OF DISSOLVED GAS ANALYSIS (DGA) IN BUSHINGS WHERE OIL IS THE IMPREGNATING MEDIUM OF THE MAIN INSULATION (GENERALLY PAPER)
International Electrotechnical Committee
Contents
Foreword
Introduction
Clause
1. Scope
2. Normative references
3. Interpretation of results of dissolved gas analysis (DGA)
of oil-impregnated bushings
3.1 Gases generated from the decomposition of oil and
paper
3.2 Key gases, gas concentrations and ratios
3.3 Method of interpretation of dissolved gas analysis
results
4. Report of results
Figure 1
Annex A (informative) Oil sample technique
Guide for the interpretation of dissolved gas analysis (DGA) which has been developed for bushings, in service, when the main insulation (generally paper) is impregnated with mineral insulating oil in accordance with IEC 60296. Applies to oil-filled and impregnated paper bushings in service. The methods should be applied with caution until further experience has been gained.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 36 |
