IEEE guide for test procedures for thermal evaluation of insulation systems for solid-cast and resin-encapsulated power and distribution transformers

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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 c...

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.

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