Tuesday, February 12, 2019
Courses highlighted in green refer to the Transformer Relay Protection Program track.
Registration and Information Desk
Transformer Type Designs
This extended session will include various types of transformer designs.
Auto-transformers have several advantages over 2-winding transformers with the same output power, such as lower weight, lower losses and hence lower costs. Auto-transformers call for several unique design considerations which require special attention and careful study. These considerations will be addressed during this presentation.
Waldemer Ziomek, Director of Research & Development
PTI Transformers LP
Types and applications of mobile substations are presented. A mobile versus power transformer is discussed with emphasis on the temperature ratings and associated with it hybrid insulation system, short circuit and dielectric strength, oil preservation and cooling system design. The mobile transformer and substation testing is discussed. The essentials of specifications and trailer components are also addressed.
Generator Step-Up Transformers
Generator Step-up Transformers (GSU’s) are a specific application that can present unique challenges to both the user and the manufacturer. The purpose of this presentation is to demonstrate how the unique parameters of this application can impact the design and construction of the transformer.
Slippery Slopes – Journey through Differential Protection – Part I
Ed Khan, Director of Protection Training
Doble Engineering Company
Transportation & Rigging
Andy Burns, Sales Manager
Edwards Moving & Rigging
The transportation of large, heavy, and oversize transformers has always been fascinating and mysterious for those who have witnessed a large loaded trailer pass by, seen a crane lift at a port or just been amazed by the sheer size of the units. Some think it must be incredibly difficult while others say it is simple. This presentation is designed to provide Logistic Solutions and to better understand the challenges of moving transformers at all levels. Edwards Moving and Rigging moves over 300 large transformers annually. This presentation will provide real life examples and case studies to illustrate all modes of transport and rigging used in the transformer industry as well as provide logistical considerations and applications for moves, whether an internal movement of a spare within a utility or receiving a new transformer from factory to pad.
Insulating Fluid Materials
Nikola Lukenda, Technical Services Advisor
Alan Sbravati, Global Technical Application Manager
Cargill Bioindustrial – Power Generation
Slippery Slopes – Journey through Differential Protection – Part II
Ed Khan, Director of Protection Training
Doble Engineering Company
Transformer Bushing Fundamentals
David Geibel, Technical Director
Art Del Rio, Product Manager Transformer Bushings
This bushing fundamentals session will cover bushing theory, design, function, terminology, standards, and different insulation technologies. Advantages, disadvantages, and differences in the types of oil-impregnated paper (OIP) bushings and dry & composite-type bushings available on the market today will be discussed. Attendees will have a clear understanding of installation, maintenance, and testing procedures, and the challenges that may be encountered when working with OIP and dry & composite-type bushings. A thorough understanding of the details needed when planning a bushing replacement project will be presented.
Lunch & Heavy Equipment Viewing
Transformer Cooling Fundamentals
Craig Stiegemeier, Director of Technology & Business Development
James Dunn, Regional Manager
With temperature control being crucial in newer transformers, heat dissipation becomes very important. However, cooling system performance, with or without moving mechanical equipment, deteriorates with age. Even systems without oil-pumps or fans can fail due to weathering, rusting and fouling. How do we evaluate the health of the cooling system? Technology has improved with time, so what optimized solutions are available?
Sudden Pressure Relays – Concept, Construction, Application & Testing
Emilio Morales, Technical Application Specialist
Learn the theory behind the deployment of the sudden pressure relays in preventing further catastrophic events within a transformer in the case of a rapid pressure rise. Realize the methodology behind placement and application of both mechanical and electronic models, including two out three logic and adjustable sensitivity. View construction methods and understand the distinct advantages between mechanical and electronic models. Proper installation tips will be discussed to ensure units are operating in the manner in which they are intended on both new and retrofit installations. Principles behind field testing will be demonstrated as well as the importance of maintaining unit health in the field to avoid potential false trips.
Transformer Overloading & its Impact on Transformer Aging
Hugo Campelo, Principal Technology Expert
Bucholz Relays – Concept, Construction, Application & Testing
This presentation will talk about the the concept, construction, application and testing of Buchholz relays. These relays, which are applied on liquid filled transformers and reactors with oil conservators, act as a central protection system. Installed in the pipeline between tank and oil conservator, it reacts to faults which occur inside the transformer. Damages which are not visible can be detected early by the Buchholz relay.
Gases moving in the direction of the oil conservator or shock waves created by the rapid gas development trigger the signaling system of the Buchholz relay. The Buchholz relay also takes over the function of an oil level indicator when there is not enough oil in the conservator or when there is an oil leak.
Load Tap Changer Fundamentals
Bernhardt Kurth, General Manager
David Geibel, Engineering Manager
Energized Load Tap Changers (LTCs), De-Energized (DETC), Transmission Class, Distribution Class, Resistive, Reactive, and so very much more. This is by far one of the most impressive presentations of the week, and it is jam-packed with information about history, usage, various designs, operations, maintenance, gas analysis, repairs, failures and components. Representatives of ABB and Reinhausen will be on hand to make presentations and then open the floor for discussion, and most importantly, to field your questions. This extremely practical presentation will allow the attendees to ask about all types of subjects related to the everyday operations, loading, and maintenance of transformer tap changers.
Integration of Protection Data & Transformer Gas Analysis for Full Asset Monitoring
Transformer differential is one of the most often mis-operated protection systems within the power system. When the differential operates, it is often difficult to determine cause because a fault may be buried deep within the transformer. Dissolved Gas Analysis(DGA) can help the trouble-shooter make statements about thermal faults and arcs and faults and help to identify the presence of a legitimate transformer fault. DGA can also help the transformer asset management team make long term statements about the health of the transformer over-time. An on-line DGA system can be added to the transformed to give reliable continuous data about the health of the transformer. Additionally, the on-line DGA can help to trouble-shoot after a transformer fault by giving dissolved gas analysis of the transformer oil. This paper examines a novel technique which uses the electrical fault data from a transformer and the DGA data and incorporates them into a single report to facilitate faster decision making after a transformer fault.
Modelling of Transformers in Real Time Simulations
Ask the Experts Panel
Industry Expo Opening & Reception
ABB and Delta Star will have heavy equipment on display during Industry Expo.
After Expo Party at Red Rock Lanes
Seminar sponsors SPX, ABB Inc., A-Line EDS and Delta Star invite seminar attendees and their guests to continue the evening following the Industry Expo at the hotel’s Red Rock Lanes – the largest luxury bowling center in Las Vegas. This evening event includes bowling, games, food, beer and wine.