THERMAL EVALUATION OF INSULATION SYSTEMS FOR VENTILATED DRY-TYPE POWER AND DISTRIBUTION TRANSFORMERS
Institute of Electrical & Electronics Engineers
1 Introduction
1.1 Scope
1.2 Purpose
1.3 References
1.4 Applicable Document in preparation
2 Basic Considerations
2.1 General
2.2 Intent
2.3 Aging factors
2.4 Data treatment
3 Test Procedures
3.1 General
3.2 Test Models
3.3 Screening
3.4 Test Cycles
3.5 Temperature Aging
3.6 Humidity Conditioning
3.7 Dielectric Tests
4 Reporting
Annex A (informative)
Annex B (informative)
Determines temperature classification of ventilated dry-type power and distribution transformer insulation systems by test rather than chemical composition. For transformers listed in ANSI C57.12.50-1981, ANSI C57.12.51-1981 with highest voltages of over 600 V.
| Document Type | Standard |
| Status | Current |
| Publisher | Institute of Electrical & Electronics Engineers |
