IEEE PC57.21/D4.2, Feb 2019
IEEE Draft Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kVA
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About This Item
IEEE PC57.21/D4.2, Feb 2019 is a draft standard that sets out requirements, terminology, and test code for shunt reactors rated over 500 kVA. It is intended to support consistent engineering and evaluation of these power apparatus components, which are used to manage reactive power and voltage conditions in electrical systems. By defining common technical language and test expectations, IEEE PC57.21/D4.2, Feb 2019 helps align design, procurement, and compliance activities for reactor applications.
About IEEE PC57.21/D4.2, Feb 2019
This draft document focuses on the technical basis for specifying and testing shunt reactors with ratings above 500 kVA. It addresses terminology as well as requirements and test procedures, which is important when comparing equipment from different sources or verifying conformance during development. In practice, IEEE PC57.21/D4.2, Feb 2019 provides a structured reference for engineering teams working with reactor design, insulation coordination, and performance checks in power equipment applications.
Where is IEEE PC57.21/D4.2, Feb 2019 used?
IEEE PC57.21/D4.2, Feb 2019 is used in the specification and testing of shunt reactors for electrical power networks where reactive power control is needed. It is relevant to utility substations, transmission installations, and other high-voltage equipment environments that rely on reactor-based voltage management. The document is also useful in manufacturing and acceptance testing workflows, where clear terminology and test methods help ensure that a reactor meets expected electrical and mechanical requirements before installation.
Importance in practice
For shunt reactor projects, this standard supports more consistent design review, procurement, and testing decisions. IEEE PC57.21/D4.2, Feb 2019 can help reduce ambiguity in specifications and improve confidence in performance comparisons between products. It is especially valuable where insulation behavior, rating verification, and test interpretation must be handled carefully. Using a common draft framework also helps teams manage technical risk and maintain consistency across engineering and acceptance processes.
- Shunt reactors rated over 500 kVA
- Requirements and terminology
- Test code and verification practices
- Power-system voltage and reactive control applications
- Engineering and procurement reference
- Publication Date: 2019
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Engineered Materials, Dielectrics and Plasmas; Power, Energy and Industry Applications
- Official IEEE: Doi link
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