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National Grid has been installing Numerical Busbar Protection (BBP) systems at its 400kV, 275kV and 132kV double busbar substations for approximately ten years. This Paper investigates the design, operational and lifetime management experiences/challenges associated with moving to these solutions. The paper will consider these challenges under the following five categories:- ▪ Policy and application...
This paper investigates the use of wide area measurements to estimate the damping of power system oscillations. At present, most damping estimation methods use a single measurement. Two test systems are simulated and a subspace identification method is used to demonstrate that having multiple measurements can improve the estimate.
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