What are the failure modes for a potential transformer and has anyone done a failure mode effects analysis on one?

Failure modes for a potential transformer (PT) can include insulation breakdown, core saturation, thermal overload, and mechanical failure due to environmental factors or manufacturing defects. These failures can lead to inaccurate voltage readings, equipment damage, or safety hazards. Yes, failure mode and effects analysis (FMEA) has been conducted on potential Transformers, focusing on identifying risks and prioritizing mitigation strategies to enhance reliability and safety in their operation. This analysis helps in understanding the impacts of different failure modes on system performance and aids in preventive maintenance planning.