OLTC Course – e-lesson #2: Resistor type OLTC
Hosted by: Raka Levi
Join us for a second lesson of the OLTC course! The host will explain arcing tap switch, giving an overview of diverter and selector, difference in various manufacturers’ designs, and giving a brief preview of the future sessions
This course provides an in-depth look at on-load tap changers (OLTCs) used in power transformers. It covers the two main OLTC designs - resistor-type and reactor-type. The course explains the construction and operating principles of the key OLTC components like the arcing tap switch and diverter switch. It also discusses the use of vacuum interrupters in modern OLTC designs. Upcoming lessons will dive into OLTC testing procedures and special applications like series transformers. Overall, the course comprehensively covers OLTC technology, operation, and maintenance for power transformer users and engineers.
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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.