Revision Standard - Superseded.
A uniform method is established for determining the temperature classification of solid- cast and resin-encapsulated power and distribution transformer insulation systems by testing rather than by chemical composition. These insulation systems are intended for use in transformers covered by IEEE Std C57.12.01-1989 and IEEE Std C57.12.91-1995 as they apply to solid- cast and resin-encapsulated transformers whose highest voltages exceed nominal 600 V.
Modify an existing standard to a Guide and expand its scope for improved application of the procedures for thermal evaluation of resin cast transformers.
Provide alternate procedures/guidelines for the thermal evaluation of resin cast transformers to allow more practical and more rapid testing and evaluation by manufacturers and to result in a thermal classification system of this equipment by transformer users.
SDO | IEEE: Institute of Electrical and Electronics Engineers |
Document Number | C57.12.60 |
Publication Date | Aug. 17, 1998 |
Language | en - English |
Page Count | 24 |
Revision Level | |
Supercedes | |
Committee | Transformers |