TECHNICAL PAPER PRESENTATION
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1 1 W E L C O M E T O C O M E T TECHNICAL PAPER PRESENTATION
2 2 ASSET MANAGEMENT ANALYTICS FOR A SUSTAINABLE GRID BY QASIM AZIZ P.E., & GAUTAM SONDE
3 A B O U T T H E A U T H O R S C O M E T BRIEF BIOS QASIM AZIZ P.E. ASSET MANAGEMENT CONSULTANT CENTERPOINT ENERGY Qasim Aziz is an Asset Management Consultant in the Asset Management Analytics and Strategy department in CenterPoint Energy based out of Houston, TX. He has more than 20 years experience in substations asset management, engineering, protection & controls, T&D planning and program management in the electric power industry. GAUTAM SONDE IT SOLUTIONS ARCHITECT CENTERPOINT ENERGY Gautam Sonde is a Solutions Architect for the Operational and Corporate Analytics team at CenterPoint Energy based out of Houston, TX. He has more than 20 years experience in Information Technology. He has been charged with delivery of innovative solutions in several areas such as finance, asset management and smart meter analytics.
4 4 Legal Disclaimer: This presentation is being provided for informational purposes only and does not purport to be comprehensive. Neither CenterPoint Energy, Inc., together with its subsidiaries and affiliates (the Company ), nor its employees or representatives, make any representation or warranty (express or implied) relating to this information. By reviewing this presentation, you agree that the Company will not have any liability related to this information or any omissions or misstatements contained herein. You are encouraged to perform your own independent evaluation and analysis.
5 5 O V E R V I E W & ABSTRACT SUMMARY Electric Substation related analytics are being used in formulation of asset management strategies in support of a sustainable power grid. This presentation focuses on presenting a methodology around development of analytics for substation assets including transformers, circuit breakers and protective relaying. It discusses use of substation analytics to assess system risk associated with electric assets based on condition and system impact. It describes application of substation related analytics in developing long-term asset management strategies encompassing asset replacements, maintaining adequate levels of Capitalized Emergency Materials (CEM) and best maintenance strategies. LEARN MORE
6 6 Y O U R A B S T R A C T M E S S A G E Asset Management Analytics for a Sustainable Grid Electric power industry planned replacements are carried out for several types of substation assets including transformers, breakers, switches etc. Assets are identified and prioritized for replacement based on risk of failure. Annual capital budget dollars are then allocated for targeted pro-active replacements. Station assets are prioritized for replacement based on analytics information using factors such as vintage, diagnostic test results, probability & impact of failure, O&M cost and design etc.
7 A S S E T R E P L A C E M E N T S T R A T E G Y 7 THE ELEMENTS A mixture of elements formulate a successful asset replacement strategy ONE Pro-active TWO Holistic NEAR REAL TIME AWARENESS Asset Replacement Strategy Spare Assets Strategy Asset Maintenance Strategy THREE Condition Based FOUR Balanced
8 8 P O W E R T R A N S F O R M E R S Life Cycle & Failures Substation transformers are important assets in an electric substation. Static devices that operate at primary voltages ranging from 12 kv to 500 kv. These are used to step down electricity from high voltage to a lower voltage level appropriate for distribution to local areas. Industry-wide age profiles 1 of in-service substation class transformers at all voltage levels shows average age around 33 years while the failure age to be around 28 years. Condition of core and coils dictate useful life of a transformer. These components undergo operating stresses like overloading, short circuit, thermal and electro-magnetic effects plus transient and dynamic over-voltage. These stresses cause cumulative and non-reversible degradation to paper insulation inside the transformer.. LTC s have shorter life cycle than the transformer core assembly. Analytics provide alerts regarding LTC s that have not crossed neutral for extended periods of time. On-line monitoring of substation is used for real-time data for operational and condition determination such as insulation degradation etc. 1 Industry-Wide Transformers Database Key Findings and Case Studies EPRI Product ID:
9 Asset Class Selection Assets Type Spectrum C O M E T
10 Asset Parameters Weightages - Typical C O M E T
11 11
12 Simplified Analytics Landscape C O M E T
13 C O N C L U S I O N S & F I N D I N G S C O M E T Conclusions
14 14 PAPER Q&A C O M E T C O L L A B O R A T E S H A R E K N O W L E D G E P R O G R E S S
15 15 GET IN TOUCH Qasim Aziz Gautam Sonde Centerpoint Energy Houston, Texas
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