Unlocked by Huaming – OLTC Course – e-lesson #2: Resistor type OLTC

Hosted by: Raka Levi
Explaining arcing tap switch, an overview of diverter and selector, difference in various manufacturers’ designs, and a brief preview of the future sessions
In this e-lesson you will learn of resistor type tap changers, the difference between selector and selector switch, operation of a diverter and arcing tap switch.
Dr. Levi as one of the world’s leading experts in diagnostics of OLTC in a high voltage oil-filled power transformers, will explain principles of operation of resistor type tap changer applied to power transformers, as well as a brief preview of the future sessions.
About the author

Dr. Raka Levi
Levico, Inc.Electric-power engineer with over 30 years of technical experience in the field of asset management, condition assessment, power instrumentation, diagnostics and monitoring, tap-changer testing, and consulting services. Director of Levico, Inc. a consulting company in the USA.
Over the last nineteen years operated from offices in Boston USA, Belgrade Serbia, Barcelona and Madrid, Spain to provide customized service to clients on all continents. Principle of operations – expert and consultant to multiple companies.
Education: Dr. Sci. in the field of HV computerized condition assessment for circuit breakers at U. of Belgrade, and Master of Engineering in Electrical Power from the Rensselaer Polytechnic Institute, Troy – New York.
Affiliations: Senior Member IEEE (USA), past vice-chairman of the IEEE working group for revision of IEEE standard C57-152