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April 26, 2009

Mtg: Applying Digital Relays To Enhance Industrial Power System Protection

by @ 3:01 pm. Filed under ALL, Electrical/Power
 

TUESDAY April 28, 2009
SF Industry Applications Chapter
Speaker: Gregory B. Rauch, P.E., Matzinger-Keegan, Inc.
Time: Social at 5:30 PM, Presentation at 6:00 PM, Dinner at 7:00 PM
Cost: $25
Place: Sinbadâ??s Restaurant, Pier 2 The Embarcadero, San Francisco (near Embarcadero BART)
RSVP: by email to Frank Sylvester, SFDPW, frank.sylvester@sfdpw.org, 415.558.4591
Web: www.e-grid.net/docs/0904-sf-ias.pdf

Microprocessor-based digital protective relays revolutionized power system protection with their introduction in the early 1980â??s.? The primary advantages of digital relays compared to electromechanical and solid state analog designs include performance, initial and lifetime ownership cost, size, and reliability.? This presentation highlights microprocessor-based industrial protection relays.? The discussion will include arc flash detection in metal-clad switchgear, and selective tripping between main and feeder breakers using peer-peer communications between instantaneous overcurrent protection relays.? Examples of recorded oscillographic event data, and sequential event records will be included.

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