SWITCH BEARING ISSUES AND SOLUTIONS
This month’s Featured Technical Paper is from the Proceedings of the 2026 International Conference of Doble Clients. The paper is titled: Switch Bearing Issues And Solutions.
Abstract
Brazos Electric Power Cooperative began experiencing operational failures of 138 kV switches in 2017 that continued for the next several years. An investigation into the operational failures determined that the bearing assemblies on the rotating insulators were at fault. The bearing assemblies had suffered moisture ingress, which caused them to rust and to seize. Temporary and long-term solutions were researched and implemented in order to address existing switches, and the purchase specifications were updated to prevent bearing issues on new switches.
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.