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TA: OLTC Course – e-lesson #7 – Analysis of OLTC test results – open for registration!

This is the first lesson in the OLTC Course (and at the Transformers Academy in general) to be held on Master’s level, but feel free to choose the level which suits your needs best.

Attend it live on 17 March at 2 PM CET.Β  If you miss it, it will be available on demand until further notice. To see the entire syllabus, see theΒ OLTC Course Brochure.



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

Learn about:

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


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