Transformer Oil Breakdown Voltage Test | Why Transformer Oil | Testing & Equipment | Result Analysis скачать в хорошем качестве

Transformer Oil Breakdown Voltage Test | Why Transformer Oil | Testing & Equipment | Result Analysis

This video is about the Transformer Oil Breakdown Voltage Test. In this video, we shall see the importance of dielectric test of oil and will see why It Matters. Transformer oil, also known as insulating oil, is crucial for the operation and durability of transformers. There are many test standards for insulating liquids, but they are derivatives of three main standards. Two of these are from ASTM International (USA) and the other is from the IEC (Europe). These standards are ASTM D1816 (Standard Test Method for Dielectric Breakdown Voltage of Insulating Oils Using VDE Electrodes) and IEC 60156 (Insulating Liquids – Determination of the breakdown voltage at power frequencies). Transformer oil needs to be tested periodically to ensure that it is still fit for purpose. The standard typically defines parameters such as the size and shape of the electrodes, the gap between them, the rate at which the test voltage is increased, how many times the test is repeated and whether or not the oil is stirred during the test. We shall also highlight result analysis by Interpreting the Results: Good, Bad and what to do next. The acceptable breakdown voltage (BDV) levels for transformer oil depend on whether the oil is new or in service, and which standard is being followed (e.g., IEC 60156, ASTM D1816, or ASTM D877). To ensure Long-Term Transformer Health, preventive and regular maintenace are best practices. A healthy transformer means higher reliability, longer lifespan, fewer outages, and lower lifecycle costs. To ensure that the dielectric strength of the oil does not deteriorate however, proper maintenance is essential, and the basis of proper maintenance is testing. 1. Routine oil testing & monitoring (for a critical transformer every 6 months, for distribution transformer annually) 2. Oil Maintenance & Reconditioning (Filtration, drying, degasification) 3. Electrical & Mechanical Inspection (busing condition, connection, tap changer inspection, vibration & noises)