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SOUTHERN CALIFORNIA EDISON UNVEILS ADVANCED DIAGNOSTIC CONTROL SYSTEM AT EL SEGUNDO GENERATING PLANT

 SOUTHERN CALIFORNIA EDISON UNVEILS ADVANCED DIAGNOSTIC
 CONTROL SYSTEM AT EL SEGUNDO GENERATING PLANT
 ROSEMEAD, Calif., Feb. 19 /PRNewswire/ -- Southern California Edison expects to achieve the best of all possible worlds -- cleaner air for less money -- thanks to the installation of the nation's first integrated advanced diagnostic computerized control system at Units 3 and 4 of its El Segundo generating station.
 Funded in conjunction with the Electric Power Research Institute (EPRI), the $15 million operation is being recognized as the "control room of the future" by engineers throughout the world. The futuristic system, designed to serve as a prototype for steam power plants throughout the nation, will reduce NOx emissions and, at the same time, cut maintenance costs.
 At the heart of the operation is a paperless control room, which includes four high-resolution video displays for the manipulation of each unit. Graphics are utilized on the displays to replace gauges, dials, annunciators, strip chart recorders and log books.
 A Bailey Controls Infi-90 distributed control system integrates the diagnostics. The software includes an ABB performance monitoring system; an ETSI turbine stress monitoring system; a B&W acoustic leak detector; a Bailey intelligent alarm; a chemistry management system; and a Bailey optimum regulator for steam temperature control.
 The values calculated by these systems reside in a common database, which is displayed to operators in integrated screen combinations. The data is logged on two optical disk recorders every 10 seconds. From the optical disks, that data can be quickly displayed either on the operator's control screens, or on PCs located in Edison's administration offices, which are connected to the system via Ethernet.
 As part of the project, Edison has developed and demonstrated a set of guidelines on planning and conducting a controls retrofit project. EPRI has published the preliminary guidelines written by Edison. Project results will be incorporated in the final guidelines later this year.
 -0- 2/19/92
 /NOTE: Photos available upon request.
 /CONTACT: Jeff Perlman of Southern California Edison, 818-302-2255/ CO: Southern California Edison ST: California IN: UTI SU:


AL -- LA015 -- 0508 02/19/92 13:43 EST
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Date:Feb 19, 1992
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