IEEE C57.12.00-1980
Immersed Distribution, Power, and Regulating Transformers
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About This Item
C57.12.00-1980 is a technical standard for immersed distribution, power, and regulating transformers, setting out the baseline requirements that support consistent design and evaluation. It is relevant to equipment used in power, energy, and industrial applications where transformer performance, insulation, materials, and ratings must be defined with care. As a superseded document, C57.12.00-1980 remains useful for understanding legacy specifications and the technical expectations that shaped transformer procurement and compliance.
About C57.12.00-1980
This standard addresses immersed transformer requirements in a way that helps define construction, performance, and testing expectations for distribution, power, and regulating units. C57.12.00-1980 is typically consulted when a specification needs a clear technical reference for transformer design features, insulation coordination, and operating characteristics. Its scope supports consistent comparison of products and helps engineers align equipment selection with the intended electrical service and installation conditions.
Where is C57.12.00-1980 used?
The document is most relevant in utilities, substations, industrial power systems, and equipment procurement where immersed transformers are selected for voltage transformation or regulation. It may also be used by engineers and buyers working with distribution feeders, plant electrical networks, and replacement units for existing installations. In these settings, C57.12.00-1980 helps tie technical requirements to practical transformer applications, especially when matching legacy equipment or reviewing older project specifications.
Importance in practice
For transformer projects, the value of C57.12.00-1980 lies in giving a common basis for design review, acceptance testing, and purchasing decisions. Clear requirements help reduce ambiguity around ratings, insulation, materials, and expected performance, which can lower the risk of mismatch between specification and delivered equipment. When working with legacy systems, the standard can also support consistency across replacements and upgrades, making it easier to compare units and maintain reliable operation.
- Immersed distribution transformers
- Power and regulating transformer requirements
- Legacy specification reference
- Design, ratings, and insulation context
- Publication Date: 1980
- Standard Status: Superseded
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications; Components, Circuits, Devices and Systems; Engineered Materials, Dielectrics and Plasmas
- Official IEEE: Doi link
- New Version Available: C57.12.00 (2022)
- Previous Version: C57.12.00 (2016)
- Previous Version: C57.12.00 (2010)
- Previous Version: C57.12.00 (2007)
- Previous Version: C57.12.00 (2000)
- Previous Version: C57.12.00 (1993)
- Previous Version: C57.12.00 (1988)
- This Version: C57.12.00 (1980)
- Previous Version: C57.12.00 (1968)
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