IEEE C57.135-2011 pdf download IEEE Guide for the Application, Specification, and Testing of . Phase-Shifting Transformers
3. Definitions
For the purposes of this document, the following terms and definitions apply,. The IEEE StandardsDictionary: Glossary of Terms & Definitions should be consulted for terms not defined in this clause.
All other definitions, except as specifically covered in this guide, shall be in accordance with IEEE StdC57.12.80 TM 5 1978 and The Authoritative Dietiomary of IEEE Standards Terms, Seventh Editien由2
advance phase angle: The phase angle expressed in degrees that results when the load (L) terminalvoltage leads the source (S) terminal voltage.
excitation-regulating winding: A two-core phase-shifting transformer (PST) design in which the excitingunit has one winding opcrating as an autotransformer that performs both functions listed under excitationand regulating winding ofa two-core PST
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2 Information on references can be found in Clause 2
excitation winding: The winding of a phase-shifting transformer (PST) that draws power from the sourceto energize the PST.