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EPRI Savannah February 20, 2013

EPRI Savannah February 20, 2013. TVA Generation Engineering Alarm Management. Presented by: Randy Olson Heriberto Gonzalez Xavier Cotto TVA. TVA Alarm Management Successful Alarm M anagement Steps. 1. Develop Company Alarm Philosophy Draft document developed

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EPRI Savannah February 20, 2013

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  1. EPRI SavannahFebruary 20, 2013 • TVA Generation EngineeringAlarm Management • Presented by: • Randy Olson • Heriberto Gonzalez • Xavier Cotto • TVA

  2. TVA Alarm Management Successful Alarm Management Steps • 1. Develop Company Alarm Philosophy • Draft document developed • Corporate/Plant review and approval • Provides Consistent process for establishing and maintaining Alarm Management • 2. Obtain and Analyze Data • Alarm configuration data – Used to determine priority and eliminate unnecessary alarms (Emerson, ABB, GE) obtain 4 weeks before D&R start • Alarm History (4 weeks) – Used to determine solutions for Bad Actors • 3. Documentation and Rationalization (D&R) • D&R team: Operator, IM, DCS Engineer, Corporate Engineer, PAS Consultant • Each alarm reviewed and priority established (8 weeks scheduled duration) • Proposed Solution for Bad actors determined • Plant exit report and D&R database file • 4. Implement Results • Format Database so that it can be uploaded into DCS • Plant bulk loads Alarm Priority data into DCS during shutdown • Work Orders written for maintenance items • Design Change request initiated for engineering changes • 5. Maintenance • Corporate selection (for consistency) of software package to facilitate analysis of future extraction • Routine extraction/analysis of events • Quarterly reports

  3. TVA Alarm Management • Bull Run Alarm Management • Systems Engineering conducted alarm management at Bull Run Fossil Site which for the analysis period had a daily alarm rate ranging between 1,385 to 21,495 alarms which exceeds Industry best practices of “Acceptable” rate of 150 alarms per day with a maximum “Manageable” rate of 300 alarms per day. • Alarm management at Bull Run Fossil Site included rationalizing more than 28,000 alarm tags. The rationalization yielded a reduction of 95.44% of configured annunciated priorities for the Power House and 89.46% for the Scrubber. The result is a fully rationalized and documented alarm database that will enhance an operator’s ability to respond to abnormal situations without hindering their efforts.

  4. TVA Alarm Management • Bull Run Alarm Management P1, P2, P3 Alarm Count Analysis (Post 1st D&R)

  5. TVA Alarm Management • Gallatin Alarm Management • Systems Engineering conducted alarm management at Gallatin Fossil Site which for the analysis period had a daily alarm rate ranging between 371 to 5,679 for units 1&2 and 939 to 5,861 for units 3&4 alarms which exceeds Industry best practices of “Acceptable” rate of 150 alarms per day with a maximum “Manageable” rate of 300 alarms per day. • Alarm management at Bull Run Fossil Site included rationalizing more than 40,310 (units 1-4) alarm tags. The rationalization yielded a reduction 54% of configured annunciated priorities for units 1&2 and 54% for Units 3&4. The result is a fully rationalized and documented alarm database that will enhance an operator’s ability to respond to abnormal situations without hindering their efforts.

  6. TVA Alarm Management • Gallatin Alarm Management

  7. TVA Alarm Management • Alarm Management Web

  8. TVA Alarm Management • Alarm Management Web

  9. TVA Alarm Management • Alarm Management Web

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