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    E-lesson

    OLTC Course – e-lesson #7 – Analysis of OLTC test results

    OLTC Course - e-lesson #7
    Course: Master’s level

    Hosted by: Raka Levi / Master's level

    This is the first e-lesson on the Master's level of the OLTC Course, but feel free to choose the level that suits your needs best.

    To see the entire syllabus, see the OLTC Course Brochure.

    E-lesson #7 - Analysis of OLTC test results 

    This session is going to talk about the analysis of results from dynamic test techniques applied to transformers with on load tap changers

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    If you are already a subscriber of the Transformers Academy or Transformers Magazine, please, Login with your credentials.

     

    Learn about:

    • good / bad results
    • resistor type OLTC
    • reactor type OLTC
    • vacuum type OLTC
    • various failures detected using test methods

     

    Keywords: dynamic test results, diagnostics, resistor, reactor OLTC, preventive autotransformer

    About the author

    Raka Levi

    Raka Levi

    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

    Edis Osmanbasic has been an Application and Testing Specialist at DV Power, Sweden since 2010. His work involves the analysis and development of test methods for condition assessment of transformers, OLTCs, and generators. He is responsible for DV Power transformer test equipment field application and diagnostics of transformer test results and is also involved in defining and proposing the maintenance strategy for the HV equipment. Edis has published numerous papers on DRM methodology and transformer testing methods. He holds an MS
    in electrical engineering.

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