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In 2009, DTE Energy — Detroit Edison began a pilot project 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...
The power quality monitoring system (PQMS) at Con Edison integrates measurements from power quality monitors, digital protective relays, digital fault recorders, SCADA historians, phase angle sensors, battery monitoring systems, and smart meters. The PQMS is used for power quality event and trend analysis via desktop and web server applications. It also provides single-event and multi-event fault...
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