IEEE 449-1990
IEEE Standard for Ferroresonant Voltage Regulators
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About This Item
IEEE 449-1990 is the standard for ferroresonant voltage regulators, offering technical guidance for equipment used to maintain stable output in power, energy, and industrial applications. It is relevant where regulated voltage is needed to support sensitive electrical loads and protect systems from supply variation. As an inactive standard, it still serves as a reference for legacy equipment, documentation, and engineering review. IEEE 449-1990 helps define the expected characteristics of this regulator type.
What is IEEE 449-1990?
This standard addresses ferroresonant voltage regulators, a class of devices that uses magnetic and resonant effects to help maintain a more consistent output voltage. IEEE 449-1990 provides a technical basis for understanding the design and performance expectations associated with these regulators. For engineers, purchasers, and maintenance teams, it can support product comparison, specification review, and legacy system documentation. The document is especially useful when working with older power equipment where stable voltage regulation is important.
Where is IEEE 449-1990 used?
IEEE 449-1990 is mainly used in contexts involving regulated power delivery for industrial equipment, electrical control systems, and legacy energy infrastructure. It may be relevant in facilities that rely on ferroresonant regulators to smooth voltage variation for sensitive loads, instrumentation, or auxiliary power circuits. The standard can also support service work, procurement decisions, and technical reference needs where this regulator technology is still installed or maintained. Its use is most practical in power and industrial applications.
Why is IEEE 449-1990 important?
This standard matters because it helps create a common technical reference for ferroresonant voltage regulators. Consistent guidance can improve design control, simplify equipment comparison, and reduce uncertainty during specification or testing. For organizations managing older power systems, IEEE 449-1990 may support safer maintenance decisions and more reliable performance expectations. It also helps align documentation and compliance activities when these regulators are part of an installed base or replacement strategy.
- Ferroresonant voltage regulator reference
- Power and industrial applications
- Legacy equipment documentation
- Voltage stability and regulation
- Specification and testing support
- Publication Date: 1990
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications
- Official IEEE: Doi link
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