OLTC Course – e-lesson #8 – Special cases of OLTC testing

Dr. Levi spent his entire career in diagnostic testing transformers and other substation apparatus, while the last 15 years dealing with tap changers. He is senior member IEEE and vice-chairman of the working group for revision of Guide for testing power transformers. Raka Levi consulted clients on all 5 continents in the field of condition assessment and substation monitoring.

Edis Osmanbasic is a Senior Project Lead Engineer for BESS and Microgrids at Hitachi Energy Sweden. His responsibilities are all technical aspects of the full BESS station from selecting main components to defining full system automation. Before this role, he was an Application and Testing Specialist at DV Power, Sweden for 14 years. His experience involves diagnosing transformer test results and defining and proposing maintenance strategies for HV equipment. His focus was developing test methods for condition assessment of transformers, OLTCs, and generators. Edis has published numerous papers on DRM methodology and transformer testing methods. He holds an MS in electrical engineering.