General recommendations for measuring voltage transients in dry-type distribution and power transformer are provided. Recurrent surge voltage generator circuitry, instrumentation, test sample, test point location, mounting the test coil, conducting…
Recommendations for the application of overcurrent protective devices to limit the exposure time of dry-type transformers to short circuits are provided. The transformer coordination curves in this guide pertain to…
A uniform method is established for determining the temperature classification of solidcast and resin-encapsulated power and distribution transformer insulation systems by testing rather than by chemical composition. These insulation systems…
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…
Supersedes C57.12.70-1978 (R1992). Standard terminal markings and connections are described for single-phase and three-phase distribution, power, and regulating transformers. For terminal markings, it covers sequence designation, external terminal designation, neutral…
This revision of ANSI C57.12.80 incorporates a substantial number of changes since the last major revision occurred in 1958. In addition to providing many new terms, some of the more…
This standard is a compilation of terminology and definitions primarily related to electrical transformers and associated apparatus included within the scope of C57, Transformers, Regulators, and Reactors standards. It also…
Superseded by C57.12.90-1987. Methods for performing tests specified in IEEE Std C57.12.00-1993, IEEE Standard General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers, and other standards applicable to liquid-immersed distribution,…
