OIL TYPE TRANSFORMER TESTING & ANALYSIS

Transcription

1 OIL TYPE TRANSFORMER TESTING & ANALYSIS March, 2016 Doha, Qatar

2 Course Introduction: This course covers the theory, operation, maintenance and testing of power transformers and auxiliary equipment. Topics included are transformer fundamentals, transformer ratings, transformer cooling, nitrogen gas systems and insulation systems. The source concludes with in-depth discussions on transformer testing techniques. This course is applicable to technicians and engineers who need a sound understanding of power transformer operation and maintenance. Participant will learn safe and proper maintenance and testing procedures on pad-mounted, power transformers. The course covers transformers used in commercial and industrial power distribution systems, including oil filed and larger power 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 in detail. Students will learn how to perform routine oil tests, and understand how to perform the major tests that are required. A variety of electrical test equipment from various manufacturers will be discussed. Course Objective: After completing this course, participants will be able to: Identify power/instrument and distribution transformer types, components and auxiliary equipment Evaluate transformer configuration for the application Interpret nameplate data Perform and evaluate the results of insulation resistance, winding resistance, turns ratio, core excitation and power factor tests of windings, bushings and liquid insulation Perform oil sampling, testing, drying, filling and filtering

3 Who Should Attend: The course is designed for Electrical Engineers and Technicians those involved in Commissioning, Start up, Operation, and Protection of Electric Power Networks. Course Content: Module (01) Introduction 1.1 Transformer applications 1.2 Some definitions 1.3 Transformer Types 1.4 Widing, current and voltage ratio 1.5 Single and multi-phase relationships 1.6 Delta-wye and wye-delta displacements Module (02) Theory of Operation 2.1 Three- Phase Transformer Connections 2.2 Voltage and Current Ratings of Transformers 2.3 Transformer Losses and Efficiency 2.4 CORE CONSTRUCTION 2.5 Winding Construction Module (03) Oil-Filled Transformers 3.1 Transformer Tank 3.2 Top Oil Thermometers 3.3 Winding Temperature Thermometers 3.4 Oil Level Indicators 3.5 Pressure Relief Devices 3.6 Sudden Pressure Relay 3.7 Buchholz Relay 3.8 Testing and Maintenance of High-Voltage Bushings

4 Course Content: Module (04) Oil Preservation Sealing Systems 4.1 Types of oil problems 4.2 Sealing Systems Types 4.3 Gas Pressure Control Components 4.4 Gaskets 4.5 Transformer Oil Testing Module (05) Transformer Oils 5.1 Transformer Oil Functions 5.2 Dissolved Gas Analysis 5.3 Key Gas Method 5.4 Transformer Diagnosis Using Individual and Total Dissolved Gas Concentrations 5.5 Rogers Ratio Method of DGA Module (06) Moisture Problems 6.1 Dissolved Moisture in Transformer Oil 6.2 Moisture in Transformer Insulation Module (07) Transformer Taps and Tap Changers 7.1 Off Circuit Tap Changers 7.2 On Load Tap Changer Module (08) Cooling 8.1 Classifications 8.2 Liquid-filled transformers 8.3 Cooling methods 8.4 Rating according to cooling type

5 Course Content: Module (09) Isolation and Grounding 9.1 Integral Ground Switches 9.2 Grounding Circuit Breakers 9.3 Portable Grounding Leads Module (10) Transformer Site Test 10.1 Winding Resistances 10.2 Core Insulation Resistance and Inadvertent Core Ground Test Module (11) Transformer Maintenance 11.1 Common Transformer Faults 11.2 Yearly Maintenance 11.3 Monthly Maintenance 11.4 Weakly Maintenance

6 Course Methodology: Course Timing: Lectures and Power Point Presentation Case Studies and Self Questioner Concepts, Techniques and sharing Practical Experience Visual Aid (Video Simulation ) Role Plays Individual and Group Exercises Pre and Post test Individual Assessment During the Class Troubleshooting Techniques 07:30 to 08:00 Registration, Coffee / Tea 08:00 to 09:30 First Session 09:30 to 09:50 Coffee / Tea, Snacks 09:50 to 12:00 Second Session 12:00 to 13:00 Lunch Break and Prayer Break 13:00 to 14:30 Last Session Course Fees: The amount of 8700 QAR will be charged for the course fee and Full Payment is required prior to commencement of the course. This Rate Includes Participant s Manual, Hand-outs, Buffet Lunch, Coffee/Tea on Arrival, Morning and Afternoon of each day. Payment Methods: Bank Name: Commercial Bank of Qatar Account Name: Qatar Skills Academy Account Number: Branch: Commercial Bank Plaza Main Branch Swift Code: CBQAQQA IBAN: QA64CBQA Registration Methods: info@qatarskillsacademy.com Fax: Website: Contact us: Address: Barwa Commercial Avenue Building 39, Doha, Qatar GPS Coordinates: / Tel: Fax: info@qatarskillsacademy.com Website: