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While performing power system studies, it can be difficult to find real-world data to supplement and/or reinforce experimental data. This paper provides information on how four databases can be obtained through a new online power quality monitoring system accessible via the Internet and how the data in these databases can be used. The available data includes NOAA Space Weather, NREL Wind, the DOE/EPRI...
DTE Energy Electric Company began a pilot project in 2009 to use power quality monitors to locate faults on numerous trunk lines and tie lines of its 24-kV and 41.57-kV systems. Fault measurements captured by the meters are downloaded automatically, integrated into a relational database, and processed for reactance calculations. The reactance calculations are combined with detailed subtransmission...
IEEE Std 1564-2014 Guide for Voltage Sag Indices is a new standard that identifies appropriate voltage sag indices and characteristics of electrical power and supply systems as well as the methods for their calculation. This paper presents an overview of IEEE 1564, which was approved as a new standard by IEEE RevCom in March 2014. The paper summarizes the IEEE 1564 methods for quantifying the severity...
The traditional role of a Power Quality Monitoring System (PQMS) has been to capture power quality information from power quality instruments and present the information in a format that allows the waveforms and trended data to be presented for analysis of events, the evaluation of the overall quality of power, by considering harmonics and flicker, and produce reports for reporting compliance to regulatory...
One of the main purposes of the power quality monitoring systems (PQMS) in Europe is providing system-wide compliance and benchmarking reporting capabilities. A common structure of the PQMS includes power quality monitors and other intelligent electronic devices (IED) from different manufacturers. Creating reports using data from such a heterogeneous system is usually a very complex task, since different...
In 2008, United Illuminating Company (UI) began a pilot project to use power quality monitors to locate faults on distribution feeders supplied by 13.8 kV systems. Fault measurements captured by the meters are downloaded automatically, integrated into a relational database, and processed for reactance calculations. The reactance calculations are combined with detailed distribution circuit models and...
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