IEEE C37.235-2021
IEEE Guide for the Application of Rogowski Coils used for Protective Relaying Purposes
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- Language: English
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About This Item
IEEE C37.235-2021 is the technical guide for applying Rogowski coils used for protective relaying purposes. It focuses on how these current-sensing devices fit into power, energy, and industrial protection systems, where accurate signal reproduction and dependable relay input are important. By clarifying application considerations for Rogowski coils, the document helps engineers select and implement measuring arrangements that support consistent protection performance and reduce uncertainty in system design and integration.
Overview of IEEE C37.235-2021
This standard addresses the use of Rogowski coils in protective relaying applications, where current measurement must be reliable across operating conditions. IEEE C37.235-2021 provides guidance that is relevant to device application, system interface, and engineering practice in electrical power environments. It is intended for situations where Rogowski coils are used as part of protection schemes rather than general metering alone. The document supports more consistent interpretation of coil behavior, installation choices, and relay compatibility in practical designs.
Typical use cases
IEEE C37.235-2021 is typically used when specifying Rogowski coils for protective relays in substations, switchgear, and other power-system equipment. It is relevant for current sensing in circuits where compact, non-intrusive measurement is preferred and where relay inputs must track fault and load conditions accurately. The guide can also support engineering teams working on retrofit projects, protection panel design, and equipment integration in utilities, industrial plants, and other power, energy, and industry applications.
Why it matters
Using IEEE C37.235-2021 helps reduce ambiguity in the application of Rogowski coils, which can improve design consistency and procurement decisions. For protection systems, clear guidance on coil use supports more dependable relay operation, better alignment between components, and fewer installation-related issues. That matters when protection performance, safety, and coordination are critical. The standard can also help teams evaluate suitability, compare options, and apply a more controlled approach to testing and implementation.
- Rogowski coil application guidance
- Protective relaying context
- Power and industrial system use
- Relay interface and integration
- Design and implementation support
- Publication Date: 2022
- Standard Status: Active
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Power, Energy and Industry Applications
- Official IEEE: Doi link
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