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2. High Voltage Test Techniques - Measurement of Partial Discharges by Electromagnetic and Acoustic Methods, IEC Std. 62478, 2016.
3. IEEE Guide for the Detection, Location and Interpretation of Sources of Acoustic Emissions from Electrical Discharges in Power Transformers and Power Reactors, IEEE Std C57.127-2018 (Revision of IEEE Std C57.127-2007), pp. 1–72, Mar. 2019.