IEEE C57.15-2017
Part 21: Standard requirements, terminology, and test code for step-voltage regulators
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About This Item
C57.15-2017 is a technical standard for step-voltage regulators, covering standard requirements, terminology, and a test code for this power system equipment. It helps define how these regulators are described, evaluated, and compared in engineering and procurement settings. For utilities and equipment engineers, C57.15-2017 supports clearer specification and more consistent testing, which can reduce ambiguity when selecting or validating voltage regulation devices used in electrical distribution applications.
What is C57.15-2017?
C57.15-2017 defines the expected requirements and test approach for step-voltage regulators, a class of devices used to manage voltage in power networks. The standard brings together terminology, technical expectations, and test code guidance so that manufacturers, purchasers, and engineers can work from a common reference. In practice, it helps structure how these regulators are designed, described, and checked for conformity, especially where reliable voltage control is important.
Where is C57.15-2017 used?
This standard is commonly used in electrical power distribution work where step-voltage regulators are installed to maintain acceptable voltage levels across a network. It is relevant to utility substations, feeder voltage control systems, and equipment specification for distribution automation projects. The document may also be used during acceptance testing, product comparison, and maintenance planning when teams need a consistent basis for evaluating regulator performance and terminology.
Why is C57.15-2017 important?
C57.15-2017 matters because it supports consistency in a specialized area of power engineering where small differences in equipment performance can affect service quality and system stability. By setting standard requirements and test methods, it helps reduce misinterpretation during design, purchasing, and verification. That can improve compliance workflows, aid technical review, and lower the risk of choosing a regulator that does not meet operational needs.
- Step-voltage regulator requirements
- Standard terminology
- Test code guidance
- Voltage control applications
- Distribution system evaluation
- Publication Date: 2018
- Standard Status: Active
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Power, Energy and Industry Applications
- Official IEEE: Doi link
- This Version: C57.15 (2018)
- Previous Version: C57.15 (2009)
- Previous Version: C57.15 (2000)
- Previous Version: C57.15 (1988)
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