THERMAL EVALUATION OF INSULATION SYSTEMS FOR LIQUID-IMMERSED DISTRIBUTION AND POWER TRANSFORMERS
Institute of Electrical & Electronics Engineers
1. Overview
2. Normative references
3. Definitions
4. Aging influences
5. Minimum life expectancy
6. Criteria for end of life - Distribution transformer and
power transformer model
7. Test temperatures
8. Test methods and specimens
9. Test period
10. End-point tests
11. Test results
12. Applicability of test results
Annex A (normative) - Materials testing for aging of
liquid-immersed transformer insulation
Annex B (normative) - Materials testing - standard test
procedure for sealed tube aging of liquid-immersed
transformer insulation
Annex C (normative) - Materials testing - standard test
procedure for dual-temperature sealed tube aging of
liquid-immersed transformer insulation
Annex D (informative) - Historical background information
Annex E (informative) - Bibliography
Presents test procedures to evaluate the thermal aging characteristics of insulation systems used in liquid-immersed distribution or power transformers.
| Document Type | Standard |
| Status | Current |
| Publisher | Institute of Electrical & Electronics Engineers |
| Supersedes |
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