Bushing Monitoring Spotlight
Thanks to monitoring a combination of leakage current & partial discharges we have saved over $10M in damages to bushings for our customers including RIP bushings
RIP bushings are made with a void-free impregnation process, designed for a Partial Discharge free operation. However, a combination of extraordinary operating and external events can result in PD in the bushings.
The resin material is not able to withstand the PD activity and will lead to fast degradation and short circuit.
Monitoring PD within the bushings is critical and allows early detection of faults, allowing for fast diagnoses and action.
To learn more, click below to access our webinar session which focuses on bushing failure modes and best practices to monitoring.Webinar Access
According to statistics published by IEEE, IEC and CIGRE, bushings contribute to roughly 15-30% of transformer failures globally.
In over 40% of cases the failure resulted in catastrophic consequences such as fire, tank rupture and explosions. CIGRE TB 755 reports:
bushings cause 5% to 50%, of transformer failures
bushing failures are the most common cause of transformer fires and can cause huge collateral damage in the switchyard
30% of generator step-up transformer failures are caused by a bushing malfunction