Practical Transformers: Operation, Maintenance and Testing

Transcription

1 Practical Transformers: Operation, Maintenance and Testing YOU WILL GAIN: 4 hour live, practical online course Saturday, 2 nd May, AM WST; 10.00AM AEST An understanding of the fundamental theory and principles of the operation of power transformers and transformer protection An insight into the identification and application of transformer types An understanding of power transformers, oil and oil tests and interpretation of results Skills in how to manage power transformer breakdowns to ensure minimum disruption WHAT S INCLUDED? Four 50 minute live, practical sessions with your instructor and attendees The full technical ebook manual for Practical Transformers: Operation, Maintenance and Testing which includes course slides, cases studies, calculations and practical exercises Four hours of additional in-depth video sessions covering many additional areas yours to keep and watch at your convenience TOTAL COST: Only $449 per person! SPECIAL OFFER TO YOU: Register by April 4 th and you will receive two ebooks each with hundreds of pages of engineering and knowledge: Safe Operation and Maintenance of Circuit Breakers and Switchgear Practical Power Distribution Total value to you = $124

2 THE COURSE Installation of high voltage distribution and transmission equipment has increased significantly over the years due to ongoing global demand for power. As a result, the need to ensure the reliability of operation of power systems is paramount. It is critical that all personnel operating and working with such equipment have a sound knowledge of their operational requirements and maintenance. This live Online course provides knowledge on both the theory and operation of power transformers. The course will develop and enhance an understanding of what is involved in the maintenance of these essential components of power systems, through the tips and tricks learnt and developed by some of the world s preeminent electrical engineers. ONLINE COURSE PRESENTER Behrouz Ghorbanian BSc, MSc, MIEAust Behrouz has completed degree courses in Telecommunications and Electrical Engineering overseas. He also completed his studies in Electrical Utility Engineering at Curtin University in Behrouz started his career in the oil and gas industry where his role got him involved in the maintenance and repair of electronic and navigational marine equipment (VHF and SSB radios, Sat Nav, engine control panels etc). He then moved to the power industry and was involved in the design, installation, and commissioning of substations mainly for consultancies and utilities. He has also established a good reputation in teaching power system protection over his long term services lecturing at Curtin University, and also over the period he worked as a Protection Engineer in New Zealand. Over the past years, Behrouz has been involved in many major projects across Australia (Port Hedland, Barrow Island, Tamar Valley, Karratha, and Newman for example). His most recent experience is related to cost estimation and risk assessment of major substation projects with a special focus on the secondary systems (Protection, COMMS, SCADA). He has also worked as an Engineering Manager and Senior Project Engineer on major copper mine projects overseas. Behrouz has also gained good knowledge in substation design, HV cables sizing and installation, transmission system design, earthing system design and applications, and power system protection design and applications. WHO SHOULD ATTEND? Consulting engineers Electrical contractors and inspectors Electrical engineers and technicians Power system engineers and technicians Project engineers Tradesman electricians Utility engineers PRE-REQUISITES: Some basic knowledge of electrical engineering and general knowledge of the nature and operation of transformers is required. However participants do not need specific knowledge on transformers and the course will start from the basic theory of transformers.

3 CONTENT SUMMARY INTRODUCTION This is an intensive four (4) hour presentation; we will be emphasising sections marked in BOLD below. Full recordings will be provided for the lower intensity sessions (another four hours of video as detailed below) to review after the course. LIVE SESSIONS SESSION ONE POWER TRANSFORMER OIL AND OIL QUALITY Oil contents: water, acidity and dissolved gas Oil tests: dielectric breakdown, moisture, resistivity, interfacial tension, specific gravity, power factor, furan analysis Recovery voltage measurement test POWER TRANSFORMER PROTECTION Surge protection Protective relaying (differential, over-current and earth fault) Buchholz relay and pressure relief relay Thermal devices and instruments (oil temperature alarm and trip, winding temperature alarm and trip) TRANSFORMERS MAIN FUNCTIONS AND CLASSIFICATION o Construction (shell type and core type) o Classification and type in relation to insulation, windings, core, cooling systems, voltage level, sizing, tank and breathing action Transformer parts SESSION TWO POWER TRANSFORMER ELECTRICAL TESTS AC tests: Power factor tests (insulation, oil and bushings) Single phase excitation current test Transformer turns ratio test DC tests: Insulation resistance test Dielectric absorption test Polarisation index test Step voltage test Hi-pot test AUTO-TRANSFORMERS GENERATOR TRANSFORMERS POWER TRANSFORMERS AND SAFETY o How to install, operate and work with high voltage power transformers safely o Earthing of HV transformers

4 SESSION THREE TAPPINGS AND TAP CHANGERS Uses of tap changers Impedance variation Tap changer mechanisms On-load tap changing by reactor transition Divertor resistor tap changers o In tank type tap changers o Externally mounted tap changers Off-circuit tap changers Construction of tap changers Control of on-load tap changers o Master/follower control o Circulating current control o Runaway prevention Moving coil regulator The Brentford linear regulating transformer Preventative maintenance guidelines Standards applicable to tap changers C Comparison between IEEE and IEC approaches TRANSFORMER THEORY o Electrical values and their definition in a power transformer - voltage, current, number of turns, impedance and their interrelation SESSION FOUR PREVENTATIVE MAINTENANCE ON POWER TRANSFORMERS Techniques to improve life expectancy UNIT TRANSFORMERS STATION TRANSFORMERS OPERATION OF POWER TRANSFORMERS IN A POWER SYSTEM o Thermal performance, loading, paralleling, tap-changing, connections and vector groups SUMMARY, OPEN FORUM CLOSING Registration form on next page!

5 REGISTRATION FORM Earthing of Utility and Industrial Distribution Systems 4 hour live, practical online course BOOKING CODE: EA-OD