QualiTROL^(R) SENTRY^(R) transformer monitoringsystem

摘要

Economic pressure means utilities are holding back on investmentnin new equipment and reducing manpower expenses. Transformers are simplynnot being replaced as often as they were in the past. Transformers arenbeing loaded more heavily, without adding new transformers. The keynmethod to offset reduced maintenance personnel is to change from ancalendar-based “scheduled” maintenance to an“predictive” maintenance philosophy, which focusesnmaintenance resources when and where the equipmentn“requires”. On-line diagnostic systems, which continuouslynmonitor critical parameters for symptoms indicating impending problems,nprovide the tools to do this. The QualiTROL SENTRY system provides anneconomical method to monitor transformers more closely, allowingnutilities to analyze transformer behavior without costly travel to thensite, predict potential problems, diagnose problems remotely, and plannresources to deal with problem situations. Utilities can concentratentheir limited manpower on the equipment that is in need of attention.nThe system is easily retrofitted to existing transformers using existingnsensor access points. The SENTRY provides a base platform with thenfeatures to do all the necessary monitoring to meet today and tomorrow'snrequirements. It provides: on-line continuous monitoring, automaticnalarm notification, remote access to present and historical data, localndisplays, controls and alarms, outputs for SCADA and future higher levelnsystems, and the ability to have the information at any PC, wherever andnby whomever it is needed