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Transformer Maintenance and Testing


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Transformer Maintenance and Testing

  1. 1. THINKING BEYOND THE OBVIOUS Del can egate c s 3 C laim poi PD ntsTransformer Maintenance and Testing The WorkshopMaintaining aged infrastructure, while improving customer satisfactionHear From Your Industry Expert Head of transformer academyThomas Hitzner Siemens AG Energy SectorDipl. Ing. MBA Power Transmission Division Transformers Germany29 – 31 January 2013 In association withGlobal Prospectus Training Centre,366 Pretoria Avenue, RandburgEndorsed and accredited by Southern African Asset Management Association (SAAMA) Ref no: SAAMA00482 SETA Accreditation No. 2502
  2. 2. MOTIVATION & OVERVIEWTransformers constitute vital components in Electric Power Systems, most utilities and industries use large number of transformersof various rating in their systems. There have been several reports of unforeseen, premature failures of transformers in service.There is a growing need to monitor the transformers in operation. The understanding of insulation system of transformers and thesignificance and contribution of insulting oils for these transformers is of immense importance for proper maintenance of powertransformers. Condition monitoring plays a vital role in predictive and prevention maintenance.It is felt that interaction of researchers, manufacturers of Transformers and engineers of power utilities can help todisseminate knowledge and update with the state of the art technology and also exchange experience on various aspects ofTransformer maintenance.While the operating principles of transformers have remained the same for nearly a century, the challenges of maintaining andtesting transformers have evolved along with transformer design and construction. Modern transformers are designed to closertolerances than ever before. Proper testing is essential for evaluating the condition of a transformer. This predictive data willguide maintenance activities and help prevent catastrophic failure that damages downstream to equipment and endangermentof personnel.Today’s capital spending on new and replacement transformers is at its lowest level in decades. To make matters worse, the load oneach transformer (or its utilization) continues to grow. Increased equipment utilization, deferred capital expenditures and reducedmaintenance expenses are all challenges facing today’s transformer owner. The power industry is more technology-driven now asnations move toward the smart grid and renewable energy, so the need for training continues to increase.With budget restraints, what testing should be done and how often you should perform maintenance is crucial. This workshop ispertinent as it will review what traditional and new maintenance testing procedures should be utilized by transformer owners. Wewill also look at the latest developments in oil testing, analysis, on-line monitoring, and oil restoration emphasis on the need toensure effective early detection and prevention of transformer failures by incorporating effective routine transformer maintenanceand testing to enable early trouble shooting and therefore saving cost of repairs and minimizing disruptions. BENEFITS & OUTCOMEThis Workshop is substantial to the energy industry as it delves into effective and proper ways for testing and evaluatingthe condition of a transformer so as to ensure analytical data will aid maintenance activities and help prevent catastrophicfailures and damages.And enable you to;• Identify power/instrument and distribution transformer types, components and auxiliary equipment• Evaluate transformer configuration for the application• Understand how to interpret nameplate data• Learn how to Perform and evaluate the results of insulation resistance, winding resistance, turns ratio, core excitation and power factor tests of windings, bushings and liquid insulation• Learn how to utilize a frequency response analyzer to identify damage• Discuss turns ratios and calculate terminal voltage and current.• Discuss terminal markings and various single phase and three phase wiring schemes. (WYE vs. DELTA).• Explain how to perform a polarity test on a potential transformer.• Discuss the electrical testing performed on transformers such as insulation resistance testing, excitation and power factor testing• Calculate polarization index and temperature corrections• Learn how to perform oil sampling, testing, drying, filling and filtering• Understand gas sampling and testing• Gain insight into how to Combine test results to troubleshoot transformer problemsGLOBAL PROSPECTUS TRAINING (PTY) LTD. Chief Executive O er - Dhevaraj PillayJohannesburg - Tel: +27 11 781 6222 Fax: +27 11 781 6044 Marketing - Auditors - Russell Bedford SA (Jhb) Inc.Pietermaritzburg - Tel: +27 33 391 4229 Fax: +27 33 391 5722 Design - (071 018 8355) Legal - DA Morris & Associates
  3. 3. WHO SHOULD ATTENDField and shop technicians, field engineers, supervisors and others responsible for the testing and maintenance of powertransformers rated 750kVA to 500MVA and 4.16kV to 500kV.• ESCOMS, Power Utilities, R&D Organizations, • Electrical maintenance engineers• Academic Institutions • Electricians• Transformer Manufacturers • Distribution and transmission Engineers• Transformer Oil Manufacturers • Consulting Engineers• Electrical Industries, • System Technical Manager• Service Providers • Foreman Electrical Generation• Power Plant Engineers • Plant Operators• Maintenance technicians • Electrical Inspectors• Substation Managers/Supervisors • Instrument and Control EngineersFrom these industries:• All power utilities • Telecommunications• Mining • Building Agencies• Oil and Gas • Electricity Control Boards• Construction • Municipalities• Government Agencies COURSE BACKGROUNDThis course covers the theory, operation, maintenance and testing of power transformers and auxiliary equipment. Topics includedare transformer fundamentals, transformer ratings, transformer cooling, nitrogen gas systems and insulation systems. The courseconcludes with in-depth discussions on transformer testing techniques. This course is applicable to technicians and engineerswho need a sound understanding of power transformer operation and maintenance.Delegates will learn safe and proper maintenance and testing procedures on pad-mounted, power transformers. Thecourse covers transformers used in commercial and industrial power distribution systems, including oil and dry-type units. Largerpower transformers used in utility applications are also covered.Load and no-load tap changer maintenance, ac and dc testing, routine inspections and oil sampling and testing are covered indetail. Students will learn how to perform routine oil tests, and understand how to perform the major tests that are required. Avariety of electrical test equipment from various manufacturers will be discussed. EXPERT FACILITATOR Thomas brings with more than 20 years of Project management working experience in operating companies. He commands excellent communication skills, Training to internal staff, customers and on vocational schools. He is also an expert in the field of electronics, power systems technology, instrumentation, security, telecommunication and IT networking, engineering, maintenance, product management, life cycle management, developing of new products. Thomas Hitzner Thomas has extensive practical experiences on different subjects of Electronics and Dipl. Ing. MBA security systems and experiences as teacher of these subjects as well as intercultural competence, projects and training in different countries worldwide Head of transformer academy He is solution orientated, consulting to other companies with newest standards and Siemens AG technologies in complex projects. Energy Sector Power Transmission Division Transformers These experiences in connection with the knowledge and its application, the skills and Germany competence gained during many years meet level 7 (Master level) of the European Qualification Framework, in analogous consideration of the European rules and criteria of recognition of prior learning. GLOBAL PROSPECTUS TRAINING (PTY) LTD. Chief Executive O er - Dhevaraj Pillay Johannesburg - Tel: +27 11 781 6222 Fax: +27 11 781 6044 Marketing - Auditors - Russell Bedford SA (Jhb) Inc. Pietermaritzburg - Tel: +27 33 391 4229 Fax: +27 33 391 5722 Design - (071 018 8355) Legal - DA Morris & Associates
  4. 4. AGENDA DAY 1 AGENDA DAY 2... Transformers and reactors in transmission and Transformers in service distribution networks • Fire protection • Introduction • Transport Checking equipment after delivery • Why we need transformers? • Overview • Transformer types • Insulation resistance test installation • Imperssions of the transformer production process • Overview • Basic parameters, explained on a transformer nameplate • Check of breakdown voltage • Quantitative measurement of gas content Transformer standards • Oil filling and assembly • Definition of a standard • Transformer standards AGENDA DAY 3 Transformer technology Electric tests • Electrical basic design - Ratio • Introduction - Winding resistance • LI Test - No load current • SI Test - Short circuit voltage • Applied potential test - AC power • Induced voltage test - Autotransformers • ACLD test - Efficiency • Zero sequence impedance • 3 phase transformers • AC withstand voltage test • Overview • PD measurement • Vector groups and vector diagrams • Acoustic sound level measurement • Fingerprint measurement Mechanical transformer design Mechanic tests • Conductors • Windings Core Transformer routine maintenance • Introduction • Cleanliness AGENDA DAY 2 • Functional and electrical tests • Oil diagnostic Transformers components Condition assessment • Tap changer • Ageing processes • Types of voltage regulation • Life expectancy • Tap changer in practice External connections • On site diagnostics • Theory • Gas in oil analysis • Types Overload and emergency operation Temperature behavior • Cooling types Oil regeneration and drying • Hot spots within transformers • Cooling design • Heat run procedure • Fans – reading circuit diagrams Control and protection devices • Oil temperature indicator • Winding temperature indicator • Oil level gauge • Dehydrating breathers • Buchholz relay • Pressure relief deviceGLOBAL PROSPECTUS TRAINING (PTY) LTD. Chief Executive O er - Dhevaraj PillayJohannesburg - Tel: +27 11 781 6222 Fax: +27 11 781 6044 Marketing - Auditors - Russell Bedford SA (Jhb) Inc.Pietermaritzburg - Tel: +27 33 391 4229 Fax: +27 33 391 5722 Design - (071 018 8355) Legal - DA Morris & Associates
  5. 5. Transformer Maintenance and Testing ONLY The Workshop R849 29 – 31 January 2013 Per D eleg 0Registration Form ex. VA ate, Global Prospectus Training Centre, T.GPW Marketing 366 Pretoria Avenue, Randburg Fax Completed Registration Form To: +27 11 781 6044Company Name:Type of Business:Address:Tel: Fax: VAT Number:Delegate 1:Position: E-Mail:Delegate 2:Position: E-Mail:Delegate 3:Position: E-Mail:Delegate 4:Position: E-Mail:Delegate 5:Position: E-Mail:AUTHORISATION: Signatory must be authorised to sign on behalf of Company CREDIT CARDName: Cardholder’s Name: DETAILSPosition: Credit Card Number:Signature: Date: CVC No: Expiry Date:PAYMENT METHODS1. Bank Transfer - Global Prospectus Training (PTY) Ltd. 2. Credit card - Please fill in your credit card details above First National Bank: Randburg 3. Cheques - Made Payable to: Global Prospectus Training (PTY) Ltd. Account Number: 62109 270372 Branch Code: 254005TERMS & CONDITIONSThe following terms and conditions will apply: Substitutions Payment is required in full 5 days from date of invoice Delegates must inform Global Prospectus Training (PTY) Ltd in writing All payments to be made directly to Global Prospectus Training (PTY) Ltd. of any substitutions. No seats will be reserved, unless Global Prospectus Training (PTY) Ltd. receives a signed registration form. There is no charge for substitutions. Global Prospectus Training (PTY) Ltd. reserves the right, due to circumstances beyond our control, to change Global Prospectus Training (PTY) Ltd will not be held liable for incorrect speakers, program content, date & venue. Delegate details on Certi s, etc. in the event of substitutions being The signed registration form is a legally binding contract. made on the day of the conference. In the event of Global Prospectus Training (PTY) Ltd having to cancel or postpone an event due to circum-Cancellations stances beyond our control, delegates will be issued with a credit voucher,All cancellations will be subject to approval by the management of Global Prospectus Training (PTY) Ltd. - which may be used at another of our events.All cancellations made 7 days prior to date of the above mentioned event will be subject to a 50% cancellation fee.Cancellations made within 7 days of date of the above mentioned event, will be subject to a 100% cancellation fee. - Global Prospectus Training (PTY) Ltd will not be held liable for travel and accommoda -The will be no refunds or credit vouchers. tion costs. The conference fee includes: conference material, lunches and refreshments, but excludes travel & accommodation.GLOBAL PROSPECTUS TRAINING (PTY) LTD. Chief Executive O er - Dhevaraj PillayJohannesburg - Tel: +27 11 781 6222 Fax: +27 11 781 6044 Marketing - Auditors - Russell Bedford SA (Jhb) Inc.Pietermaritzburg - Tel: +27 33 391 4229 Fax: +27 33 391 5722 Design - (071 018 8355) Legal - DA Morris & Associates