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October 25, 2007

Mtg: Industrial Plant Adaptive Load Shedding: Beyond PLC Control

by @ 3:38 pm. Filed under ALL, Electrical/Power, Engineering Mgmt

THURSDAY November 15
OEB Industry Applications Chapter
Speaker: Greg Rauch, Field Sales Engineer, Schweitzer Engineering Laboratories, Inc.
Time: No-host social at 5:30 PM; Presentation at 6:15 PM; Dinner at 7:15 PM; Presentation continues at 8:00 PM
Cost: dinner is $20 for IEEE members; $25 for non-members
Place: Marie Callender’s Restaurant – The Garden Room, 2090 Diamond Blvd, Concord
RSVP: by November 14 to Gregg Boltz, or telephone (925) 210-2571

Industrial plants with an electric utility interconnection and on-site generation resources include a wide variety of electric loads, ranging from less critical lighting and HVAC, to most critical processes and process controls.? When the utility interconnection is compromised, on-site generation is expected to maintain critical loads in order to mitigate economic consequences of loss of finished product, and potentially hazardous environmental impacts. ? The speed with which the plant system adapts to restricted generation resources is critical to the overall success of maintaining important process loads during a reduction or loss of utility supply.

Protective relays are an absolute necessity in all medium voltage and above power systems.? These relays are, therefore, a logical base of electronic devices upon which a power management system can be built.? Modern protective relays include all the I/O, programmability, data collection, metering, and power system diagnostics that previously required the integration of RTUs (Remote Terminal Units), PLCs (Programmable Logic Controllers), DFRs (Digital Fault Recorders), transducers, meters, and multiple single-function protective relays.

Modern power management systems are a complete integration of an installed base of protective relays, remote I/O modules, wide area control systems, communications, monitoring, and engineering toolsets.? This presentation describes the design of a fully integrated power management system as applied in a large oil refinery.

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