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What Is a Phasor Measurement Unit and How Does it Make the Grid More Reliable?
A Phasor Measurement Unit, also called a PMU or a synchrophasor, is a key tool used on electric systems to improve operators’ visibility into what is happening throughout the vast grid network.
Energy-Currents_Blog/What-Is-a-Phasor-Measurement-Unit-and-How-Does-it-Make-the-Grid-More-Reliable.aspx
How Electric Operators Maintain Acceptable Voltage
Utility professionals must have a basic understanding of the principles of voltage regulation as the utility grid becomes increasing distributed. System operators and designers must learn new techniques for managing voltage, and customers installing DERs will need to understand why interconnection rules include requirements associated with voltage support.
Energy-Currents_Blog/How-Electric-Operators-Maintain-Acceptable-Voltage.aspx