7/30/2019 Volume 2 Issue 0 1999 [Doi 10.1109%2Fpess.1999.787483] Hardwick, G.M. -- [IEEE 1999 IEEE Power Engineering

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Reliability Centered M aintenance at Florida Power CorporationGregoryM. HardwickFlorida Power Corporation

IntroductionFlorida Power Corporation (FPC), a subsidiary of Florida Progress, is an investor owned electricutility serving over 1.3 million customers in a 32 county service area. FPC has over 376substations with over 3,100 circuit breakers, 1,100 transformers, 110 capacitor banks, and 300battery banksas Bulk Power assets. Other Bulk Power assets include approximately 45,000relays, and 4,600 miles of transmission lines, consisting of aluminum,wood, concrete, and steelpoles on around 3,600 miles of right of way,Pre-RCM (1997)FPC maintained its assets (transmission, substation, and relay) on a time-based schedule (TBM).In 1986, FPC introduced an automated substation maintenance system namedSMMISto helpmanage all of the substation maintenance activities. This system, developed in-house by FPC,uses an Integrated Database Management System(IDMS)database to store physical statistics ofall substation equipment. It proved to be extremely effective for some time, butw a s limited.The system only enabled its maintenance activities to driven by time based triggers and loggedoperations. It was not capable of using otherdata suchas inferred readings, DissolvedGasAnalysis(DGA),and other inspection and testing practicesto trigger maintenance. The programdid provideaneffective means of establishing an accurate and consistent assessment of thecondition of substation equipment,Quarterly, the System Protection&Control (SPAC) department manually initiated a query of aDbaseN relay database, to determine the relays due for maintenance. The FPC developed relaydatabase system included over 8500 relay terminals each consisted of all the relays associatedwith a single protection zone.The local area field supervisor determined the terminals formaintenance.Before 1995, Transmission maintenancewas decentralized, which left the responsibility ofplanning, documenting and funding to regional organizations. Thisenabled the localdepartments to focus on a specific area, but over a period of time maintenance standards,activities, and documentation varied. These inconsistencies made it difficult to trackperformance of the entire transmission system against maintenance activities to determinespecific areas ortypesof equipment with reliability problems.

0-7803- 5569- 5/99/ $10.001999 IEEE 1169

7/30/2019 Volume 2 Issue 0 1999 [Doi 10.1109%2Fpess.1999.787483] Hardwick, G.M. -- [IEEE 1999 IEEE Power Engineering

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RCM Implementation (Present)The fundamental purpose of RCM at FPC is to increase reliability, optimize operating costs, andextend the useful life of its Bulk Power assets.At Florida Power, Reliability Centered Maintenance (RCM) programisdependent on acondition assessment of the asset. Theprogram will be based on an automated CMMSapplicationwthability to:+ Identi@ and organize system equipment groups and components.+ Include equipment and maintenance activity costs.+ Record a complete maintenance history and conditionof specific equipment.+ Trigger and rank maintenancetasksbased onacondition assessment.+ The abilityto link to otherdatabasesand corporate systems for intelligent decision

making.

Many lessons have been learned during the implementation phase:+ The scope is larger than originally thought.+ The project schedule is longer than originally thought.+ Create a coregroup.+ Communication is essential.+ Knowand document SPECIFICALLY whatistobeaccomplished.+ Build the program around an existing CMMS system.+ Get help from an RCM expert.+ BEPATIENT.

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