Supramaniam, Gobi Kannan

Specialist Engineer, Tenaga Nasional Berhad, Malaysia

Supramaniam, Gobi Kannan

Specialist Engineer, Tenaga Nasional Berhad, Malaysia

Biography

RIP Bushing Service Experience & Replacement Strategy at TNB

Mr. Kannan holds a Bachelor of Electrical Engineering Degree from Western Michigan University and a Masters of Power Engineering from Tenaga Nasional University. He is a Registered Professional Engineer as well as Chartered Electrical Engineer (IET UK) with Tenaga Nasional Berhad’s Transmission Division and represents the Malaysia National Committee in CIGRE WG A2. Currently, he is responsible for new technology assessment, diagnostics and equipment performance improvement for the Transformer Unit in TNB’s Engineering Department. In his previous position, Mr. Kannan was responsible for Asset Management and Maintenance where he performed technical assessments of new technologies. He has been Secretary for the launch of the ASEAN Bushing Guidebook.

Failure statistics show that bushings are a main contributor to transformer failure and can have a potentially catastrophic impact on system reliability and safety. Despite industry efforts to proactively implement more condition-based maintenance to detect impending failures, migration to a safer dry bushing was deemed necessary at one large TSO to manage impact and risk linked to conventional oil-based bushing technology. The presentation shares that grid’s practical experience and lessons learned during this migration process and also details related improvements in specifications and procedures.

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