Transformer oil testing is an essential practice in ensuring the reliability and efficiency of transformers within electrical power systems. This process involves a comprehensive evaluation of the oil's properties and characteristics to identify any potential issues that could compromise its performance or the integrity of the transformer itself. One of the primary tests conducted on transformer oil is dielectric strength testing. This test measures the oil's ability to withstand electrical stress without breaking down. A high dielectric strength is crucial for maintaining insulation integrity and preventing electrical faults. Moisture content testing is another critical aspect of oil analysis. Moisture can infiltrate transformer oil through various means, such as condensation or leakages, and can significantly impact its dielectric properties.