New, improved materials are used to build various size power transformers. Knowing what materials go into a power transformer helps design and build protective relay schemes and what to monitor/alarm on each transformer.
Consulting engineers are always looking at ways to better satisfy the needs of their clients. The cost of protecting major power transformers can be compared to the cost of providing insurance coverage for people. Protection for a power transformer will depend on its location just as the insurance coverage for a person will depend on his life style. A power transformer at a generating station will have a different protection scheme when compared to a power transformer in a substation. Not only the materials but also the locations of the power transformers determine the type of protective relay schemes and the associated costs.
This discussion is intended for an audience of power engineers familiar or unfamiliar with every nuance for the protection of power transformers. The basic protective relay scheme will be discussed and the differences in protective relay schemes associated with the transformer location. People attending this presentation will leave with the understanding that it takes more than one differential relay, some overcurrent relays and one lockout relay to protect a large power transformer.
Greg Czernenko is a Senior Electrical Engineer with the Raymond Professional Group, previously known as Doyen and Associates Inc. Before joining the Raymond Professional Group, Greg held four assignments, lasting over 17 years, in ComEd directly related to the protection of large electrical equipment in transmission substations and generating stations. He taught evening courses in protective relaying for 10 years. Greg holds a Bachelor degree in Electrical Engineering from the University of Illinois at Urbana-Champaign. Greg is a licensed Professional Engineer in the State of Illinois and a member of the Institute of Electrical and Electronics Engineers.
| Location | Time | ||
|---|---|---|---|
| Chicago Bar Association | 11:30 AM | Social | |
| 321 South Plymouth Court | 12:00 PM | Lunch (optional) | |
| (near Jackson & Dearborn) | 12:15 PM | Presentation | |
| Chicago, IL 60604 | 1:00 PM | Adjourn | |
| 312-554-2000 |