Fiber Bundle Spectral Changes Under Thermal Aging Impact Optical Partial Discharge Detection

The study investigates how thermal aging affects the spectral transmission characteristics of fiber bundles used in optical partial discharge detection. Partial discharges, which are small electrical sparks in high-voltage equipment, can be detected using optical methods. These methods rely on fiber optic sensors to pick up light signals emitted during these discharges. However, the performance of these sensors can degrade over time due to thermal aging, a process where materials deteriorate when exposed to heat for extended periods. The research focuses on understanding the specific changes in how these fiber bundles transmit light across different wavelengths as they age. This understanding is crucial for maintaining the reliability and accuracy of optical partial discharge detection systems. By analyzing these spectral transmission evolutions, scientists can better predict sensor lifespan and develop strategies to mitigate the effects of aging. Such improvements are vital for ensuring the safety and operational integrity of electrical power systems, where early detection of partial discharges can prevent catastrophic failures.