Standard Details
The characteristics of the various transformer connections and possible operating problems under normal or abnormal conditions are treated for three-phase distribution systems. These systems are characterized by primary voltages up to and including 34.5 kV, usually have a preponderance of connected transformers with low-voltage windings below 1000 V, and furnish electric service to consumers. All combinations of Delta and Y, grounded and ungrounded, T connected, zigzag, and certain special connections are considered. Only two-winding transformers are included. Phasing procedures and loading practices are not covered.
Sponsor Committee | |
Status |
Superseded
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Superseded by | |
Board Approval |
1977-06-02
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History |
Published Date:1978-10-20
Reaffirmed:2008-03-27
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Additional Resources Details
PAR |
Approved PAR
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Working Group Details
Working Group |
PerfCharac-WGC57.105 - Performance Characteristics - Transformer Connections in Three-Phase Dist Systems Working Group
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Working Group Chair |
Roger Verdolin
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Sponsor Committee | |
Society | |
IEEE Program Manager | |
Existing Standards |
Descriptions of products, methods, and procedures relating to stationary batteries, battery electrolyte spill mechanisms, electrolyte containment and control methodologies, and firefighting considerations are provided.
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