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Title: Application experience with the diaglog automated diagnostic system

Technical Report ·
OSTI ID:269645
 [1];  [2]
  1. ANDTEK Inc. Huntsville, AL (United States)
  2. Alabama Power, Birmingham, AL (United States)

Operating experience over the last year with the DIAGLOG automated diagnostic system has shown that operating events at a 230 KV substation for selected line terminals can be monitored and diagnosed. DIAGLOG is a Diagnostic Logic System which has been applied to substation diagnostics under EPRI Project RP1359-20. Reporting data from an instrumented substation has been used to operate the diagnostic system when a significant event is reported. Lessons learned and the significance of monitor point selection are discussed. The use of maintenance alerts f or indicating when equipment is starting to operate out of specification as well as failure reports to tell when a misoperation has occurred are discussed. when a misoperation is detected, then the diagnostics can be asked to perform a troubleshooting procedure to identify what item has failed to operate correctly. Both primary and secondary relay operations are combined in the model logic, and near and remote events are recognized through monitoring of the carrier set activity.

Research Organization:
Electric Power Research Inst. (EPRI), Palo Alto, CA (United States); Cambias and Associates, Covington, LA (United States)
OSTI ID:
269645
Report Number(s):
EPRI-TR-105838; CONF-9411304-; TRN: 96:003582-0023
Resource Relation:
Conference: 3. substation equipment diagnostics conference, New Orleans, LA (United States), 1-3 Nov 1994; Other Information: PBD: Mar 1996; Related Information: Is Part Of Proceedings: Substation equipment diagnostics conference III. Proceedings; PB: 299 p.
Country of Publication:
United States
Language:
English