IEEE PC37.118.1/D4.2, May 2011 is a draft standard for synchrophasor measurements for power systems, defining a technical framework for how synchronized electrical measurements are represented and assessed. It is relevant to power, energy, and related signal processing and communications applications where timing, accuracy, and interoperability matter. As a draft document, IEEE PC37.118.1/D4.2, May 2011 helps engineers and system planners align measurement practices for monitoring, analysis, and data exchange in grid environments.

What is IEEE PC37.118.1/D4.2, May 2011?

This standard is an IEEE draft specification centered on synchrophasor measurements used in power-system applications. It addresses the measurement context behind phasor-based monitoring, where synchronized sampling and time alignment are critical for comparing electrical quantities across locations. IEEE PC37.118.1/D4.2, May 2011 is intended to support consistent technical expectations for measurement behavior, which can be important when devices, software, and communications systems must work together in power engineering environments.

Where is IEEE PC37.118.1/D4.2, May 2011 used?

IEEE PC37.118.1/D4.2, May 2011 is generally used in power-system monitoring and analysis workflows that rely on synchrophasor data. Typical use cases include phasor measurement units, control-center applications, wide-area monitoring, and test environments for measurement equipment and communication paths. It is most relevant where synchronized electrical measurements are collected, transmitted, and evaluated for grid visibility, disturbance analysis, and operational support in utility and industrial power systems.

Why is IEEE PC37.118.1/D4.2, May 2011 important?

Clear measurement requirements help reduce ambiguity in engineering design, procurement, and testing. IEEE PC37.118.1/D4.2, May 2011 matters because synchrophasor systems depend on consistent timing and data interpretation to deliver reliable results. Using a defined standard can support compliance checks, improve interoperability between measurement devices and analysis tools, and lower the risk of inconsistent performance in monitoring or decision-making applications. For power-system projects, that consistency is often essential.

• Synchrophasor measurement framework
• Power-system monitoring context
• Time-aligned electrical data
• Measurement consistency and interoperability
• Draft IEEE technical document