IEEE C57.13.7-2018
IEEE Standard for Current Transformers with Maximum Milliampere Secondary Current of 250 mA
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About This Item
IEEE C57.13.7-2018 is a technical standard for current transformers with a maximum milliampere secondary current of 250 mA. It provides a focused framework for design, rating, and performance considerations in measurement and protection applications where low secondary current is specified. By defining expectations for this class of current transformer, IEEE C57.13.7-2018 helps support consistent engineering practice, procurement decisions, and compliance checks in power, energy, and related industrial systems.
What is IEEE C57.13.7-2018?
IEEE C57.13.7-2018 addresses current transformers intended to operate with a maximum secondary current of 250 mA, which places it in a more specialized part of transformer standardization. The document is relevant to the electrical characteristics, ratings, and performance criteria needed to evaluate these devices in practical service. For engineers and buyers, it serves as a technical reference when specifying low-secondary-current current transformers and comparing products against a recognized IEEE standard.
Where is IEEE C57.13.7-2018 used?
This standard is typically used in power-system measurement, metering, and protective relay applications where current transformers must deliver a limited milliampere secondary output. It is relevant in substations, switchgear, and industrial power distribution equipment that depend on accurate current sensing for monitoring or control. IEEE C57.13.7-2018 may also be useful during specification review, product selection, and test planning for equipment that incorporates low-output current transformers.
Why is IEEE C57.13.7-2018 important?
IEEE C57.13.7-2018 matters because it helps define a consistent basis for design and evaluation of a specialized current transformer category. Using the standard can reduce ambiguity in performance expectations, improve compatibility between equipment and instrumentation, and support more reliable compliance and testing processes. For procurement and engineering teams, it provides a clear reference point when assessing transformer suitability, limiting risk, and maintaining consistency across power and energy applications.
- Current transformers with 250 mA maximum secondary current
- Measurement and protection applications
- Design, rating, and performance reference
- Power, energy, and industrial electrical systems
- Publication Date: 2019
- Standard Status: Active
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Power, Energy and Industry Applications
- Official IEEE: Doi link
- This Version: C57.13.7 (2019)
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