Transformer Oil Testing is a critical maintenance service that assesses the health and insulating properties of the oil, which is vital for a transformer's performance and safety. The service involves taking an oil sample and performing a series of tests in a laboratory. Key tests include a Dielectric Strength Test to measure the oil's ability to withstand electrical stress, a Moisture Content Test to detect water contamination, and an Acidity Test to check for degradation. These tests help identify potential issues like insulation breakdown or overheating before they cause a major failure. In the Gurugram area, companies like Saini Transformer and Power Engineers & Contractor provide this essential service, helping to prevent costly downtime and extend the operational life of transformers.