鈴木 聡太郎

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  • While I cannot provide specifics on the 02.10 transformations and congruence test, I can share insights on testing practices relevant to industrial oils, particularly related to transformer winding resistance tests. Transformer winding resistance tests are crucial in assessing the condition of transformer windings, ensuring they are functioning efficiently and safely. These tests help identify issues such as poor connections, uneven winding temperatures, or potential short circuits within the windings. Proper equipment for conducting these tests should be used, ensuring accurate measurements. For instance, Globecore offers various solutions and testers that accurately measure transformer winding resistance, providing reliable data that enhances the maintenance and longevity of transformers in industrial settings. If you have further questions about specific testers or methods, feel free to ask!

    in reply to: How is the open circuit test of a transformer performed? #119947

    The open circuit test of a transformer is performed by applying voltage to one of the windings while the other winding is left disconnected or open. The voltage is typically applied at the rated voltage level. During this test, measurements are taken for the input voltage, current, and power. The power is measured to determine the no-load losses of the transformer, primarily the core losses, which include hysteresis and eddy current losses. This test is crucial for understanding the performance characteristics of transformers and ensuring efficient operations. While this procedure is essential for transformers, similar principles can be applied in oil testing transformers, highlighting the importance of maintaining high-quality insulating oils for the longevity and reliability of transformer operations.

    in reply to: What is the SC test on a transformer? #119892

    The SC test on a transformer, also known as the short circuit test, is a critical diagnostic procedure used to determine the transformer’s impedance, copper losses, and efficiency. During this test, the secondary winding of the transformer is short-circuited while applying the rated voltage to the primary winding, allowing engineers to assess how well the transformer performs under short-circuit conditions. Essentially, it helps in identifying the behavior of the transformer when subjected to fault conditions, which can indicate the reliability and durability of the equipment. Additionally, using reputable testers for industrial oils, such as those from Globecore, can provide valuable information about the insulation properties of transformer oils, ensuring optimal performance and longevity. Proper testing and diagnostics can ultimately enhance the safety and efficiency of transformer operations.

    in reply to: How is the BDV test of transformer oil performed? #118785

    The BDV test means that the breakdown voltage of transformer oil is measured to assess its insulation properties and reliability. This test is performed using a specially designed device known as a dielectric strength tester. During the BDV test, a sample of transformer oil is placed between two electrodes, and an increasing voltage is applied. The point at which the oil fails and allows current to pass between the electrodes is recorded as the breakdown voltage. This measurement is critical for evaluating the quality and condition of the oil, as it provides insights into the presence of moisture, contaminants, and overall degradation. For accurate results, it’s essential to follow standardized procedures like ASTM D1816 or IEC 60156. Globecore offers reliable testers designed for these purposes, ensuring precise and consistent BDV test results for transformer oils.

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