Abstract: . . .  system can focus even an expert user and ensure consistent results. Improve the quality of performance of non-experts. A monitoring and diagnostic system can often take the place of a human expert in guiding a less experienced individual through a particular problem. Thus less experienced technical staff can perform diagnostic analysis while maintaining high standards of quality. Train less experienced personnel. Because a computer system can be interrogated as to why a particular conclusion was made, less experienced users can gain knowledge about the approach experts use to solve problems. Page 3 System Architecture HydroX has been constructed from independent software modules and monitors communicating in a client/server type architecture. . . .
. . .  Zelingher, S., Hirschman, G. B. and Tecza, J. A. "Development and Implementation of a Monitoring and Diagnostic System for a Hydroelectric Pumped Storage Facility," presented at the EPRI Sixth Predictive Maintenance Conference, May 1994, Philadelphia, PA. 5. Zelinski, A., Stranovsky, G., Tecza, J., Walter, T. “Improving Hydromachinery Health Through Condition Monitoring.” Hydrovision ’98, July 28-31, 1998, Reno, NV. 6. Walter, T., Hirschman, G., Krikorian, M., Westmacott, A. “Experience With Condition Monitoring Of A Hydroelectric Generator And The Impact Of Market- Driven Operation On Unit Behavior”, 56th Meeting of the Society For Machinery Failure Prevention Technology, Virginia Beach, VA, April 15 – 19, 2002 Authors Blake Lloyd is Vice President . . .
. . .  and Light, “Continuous partial discharge measurement to improve generator availability”, EPRI Generator Conference, New Orleans, January 2001. 3. Hirschman, G., Bardsley, S., Walter, T., Zelinski, A., Zelingher, S. Stanovsky, G. and Krikorian, M. “Micro-DAU: High Performance Data Acquisition For Hydroelectric Generator Machine Diagnostics” HydroVision 2000 , August 8-11, 2000 , Charlotte, NC. 4. Siola, R., Zelingher, S., Hirschman, G. B. and Tecza, J. A. "Development and Implementation of a Monitoring and Diagnostic System for a Hydroelectric Pumped Storage Facility," presented at the EPRI Sixth Predictive Maintenance Conference, May 1994, Philadelphia, PA. 5. Zelinski, A., Stranovsky, G., Tecza, J., Walter, T. “Improving Hydromachinery Health . . .
. . .  HydroTrac Controller IrisBus/RS-485 Plant Ethernet MicroDAU Controller Diagnositic Expert System Ethernet Figure 1 - HydroX Components Page 4 specific monitor (PD, vibration, air gap, etc) will be stored in a device specific database maintained by the monitor. Conventional Sensor Interface All process-type data is obtained from an interface to the plant’s GCS (generation control system) or SCADA (supervisor control and data acquisition) system. The GCS provides a software interface, which allows HydroX to periodically obtain a snapshot of the process parameters. In addition, HydroX can pass alarm conditions back to the GCS to alert the operator to a generator condition diagnosed by the expert system. Partial Discharge (PD) Sensors A PD data sensor . . .
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