IEEE C37.242-2021
IEEE Guide for Synchronization, Calibration, Testing, and Installation of Phasor Measurement Units (PMUs) for Power System Protection and Control - Redline
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About This Item
IEEE C37.242-2021 is a technical guide for synchronization, calibration, testing, and installation of phasor measurement units (PMUs) used in power system protection and control. It focuses on practical steps that help ensure PMUs deliver consistent, time-aligned measurements for monitoring and control applications. In power and energy systems, this matters because measurement accuracy and synchronization directly affect system visibility, event analysis, and operational confidence. The redline version helps users identify changes within the standard text.
About IEEE C37.242-2021
This guide addresses the technical considerations involved in preparing PMUs for service, from timing and calibration to verification and installation practices. IEEE C37.242-2021 is relevant where synchronized phasor data is used to support protection, control, and system assessment. It is intended to help engineers and technical teams apply a consistent approach when working with PMU equipment and related measurement chains. As a redline document, it is especially useful for reviewing revisions against the prior edition.
Where is IEEE C37.242-2021 used?
IEEE C37.242-2021 is commonly used in substations, control centers, utility test environments, and other power-system settings where PMUs are installed or maintained. It is relevant to workflows that include commissioning, calibration checks, timing verification, and ongoing performance testing of phasor measurement equipment. The standard may also support procurement and engineering review when synchronized measurements are part of protection or control schemes. Its scope fits operational environments that depend on reliable time-stamped electrical measurements.
Importance in practice
In practice, IEEE C37.242-2021 helps reduce uncertainty around PMU setup and validation. Clear guidance on synchronization and testing can improve consistency between devices, support safer commissioning, and lower the risk of measurement errors that affect protection or control decisions. For organizations managing grid monitoring assets, the standard can also aid compliance planning, documentation, and quality control. Using a defined technical reference supports repeatable results across installations and maintenance activities.
- PMU synchronization guidance
- Calibration and verification steps
- Testing and commissioning support
- Installation practices for power systems
- Publication Date: 2021
- Standard Status: Active
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Power, Energy and Industry Applications
- Official IEEE: Doi link
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