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    E-lesson

    Transformer Testing Lesson -e-lesson # 14: Sound level measurement

    Transformer testing course - lesson #14 - illustration
    Course: Master’s level

    Hosted by: Balazs Sztari / Master's level

    This lesson provides an overview of sound level measurement for power transformers. It covers the importance of this test and the relevant industry standards. Key terms like sound pressure, sound intensity, and sound power level are defined. The lesson explains the main sources of noise in transformers, including the core, windings, and cooling equipment. It discusses the instrumentation requirements and the two main measurement methods - sound pressure and sound intensity. The validation and calibration procedures for ensuring accurate measurements are outlined. Finally, the lesson touches on calculating sound power level and the test report requirements.

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    In this lesson of the Transformer Testing Course, you can learn about the sound level measurement of power transformers. The presenter will speak about the measurement methods and standard references of this test. The details of required test equipment, the test procedure, the interpretation method, and fault cases will be shown in the presentation as well.

    Keywords: power transformers, transformer testing, sound level measurement, sound pressure, sound intensity, sound power

    About the author

    Balazs Sztari

    Balazs Sztari

    Ganz Electric

    Balazs Sztari graduated as electrical engineer in Budapest. Beside of factory acceptance tests, his team performs commissioning, diagnostics and R&D tests on power transformers and rotating machines.

    He is currently a member of Cigre A2.53 working group.

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