What does ethylene in transformer oil signify?

Ethylene in transformer oil signifies the presence of certain degradation products that can occur during the thermal aging of the oil. The formation of ethylene may indicate a breakdown of the oil’s molecular structure, which could lead to reduced insulation properties and potentially compromise the performance of the transformer. Monitoring ethylene levels in transformer oil is crucial for assessing the health of the insulating medium and ensuring the long-term reliability and efficiency of the transformer. Regular analysis helps in predictive maintenance, allowing for timely interventions to prevent failures.