PES Webinar - GridLAB-D: A Unique Tool to Design the Smart Grid.

Date: Saturday, October 06, 2018 11:00 am - 12:00 pm
Duration: 1 Hour

Dynamic Performance Verification of Reactor Type OLTC

December 5, 2018 • 11:00 am ET

Presented by: Dr. Raka Levi, Consultant, DV Power

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This Webinar:

OLTC field testing has a new tools for the condition assessment of this moving transformer component. Dynamic testing can now provide information on the operational characteristics of the OLTC as well as problems with contacts, mechanism and other subassemblies. Reactor type tap changers are slow moving design and understanding principles and operational characteristics is essential for condition assessment. Dynamic DRM test is an off-line, non-destructive test in which a DC current is injected through a winding and tap changer as it moves through all of its positions. Results from the current signatures are examined and compared against previous tests or similar unit test results. Result of this tool is an exact position/component in trouble pinpointed when based on early warning provided by ratio of gasses analyzed using DGA

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The Presenter:

Dr. Raka Levi, Consultant, DV Power

Dr. Raka Levi is an Electrical 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.

Created a European asset managers' network, the AMforum.org - that counts over 200 engineers from most of European utilities. Convenes Working Group for the DRM testing of OLTCs. Consultant and main contributor in the development of OLTC diagnostic methodology for a Swedish instrument manufacturer DV Power. Created and has been running the “Tap Changer University” and “Tap Changer College” worldwide seminars.

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