GM 22 Tutorial: Aeolian Vibration, Galloping & Sub-span Oscillations and Conductor Motion Management (slides)

Overhead conductor motion (Aeolian vibration, galloping, and sub-span oscillations) has been an operation and maintenance issue for over eight decades, but conductor motion is still causing problems to utilities. This tutorial will review Aeolian vibration, galloping, and sub-span oscillations, conductor and hardware problems caused by conductor motion, and discuss the state-of-art of conductor motion mitigation technologies and methodologies; review lessons learned by utilities and the line design issues that cause conductor motion. Marker-ball caused shield wire motion is also included. This tutorial will discuss conductor motion management, mitigation measures, and preventive measures to improve the resilience of transmission lines.