MANAGING OIP TRANSFORMER BUSHINGS ON ESKOM & NTCSA’S TRANSFORMERS: STANDARDIZATION AND REPLACEMENT CHALLENGES
This month’s Featured Technical Paper is from the Proceedings of the 2025 International Conference of Doble Clients. The paper is titled: Managing OIP Transformer Bushings On ESKOM & NTCSA’S Transformers: Standardization And Replacement Challenges.
Abstract
Oil-impregnated paper (OIP) bushings have been widely used in the Eskom and National Transmission Company South Africa (NTCSA) transformer fleet. Over the years, these bushings have shown varying levels of performance, with certain defects leading to catastrophic failures. The introduction of resin impregnated paper (RIP) technology in 2007 marked a shift towards safer and more reliable components. This paper examines the history, challenges, and advancements in bushing technologies in Eskom and NTCSA.
Doble Service Agreement Clients
This and other technical papers and presentations are available in the MyDoble Resource Center - one of the many benefits available to you as a Doble Service Agreement Client. To get to the MyDoble Resource Center login click here. Not a member? Follow the sign-up process.