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http://dx.doi.org/10.4313/JKEM.2010.23.10.809

Partial Discharge Electromagnetic Wave Penetration Characteristics Throughout Transformer Winding  

Ju, Hyung-Jun (Transmission and Distribution Laboratory, Korea Electric Power Research Institute)
Han, Ki-Son (Transmission and Distribution Laboratory, Korea Electric Power Research Institute)
Yoon, Jin-Yul (Transmission and Distribution Laboratory, Korea Electric Power Research Institute)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.23, no.10, 2010 , pp. 809-813 More about this Journal
Abstract
Frequency domain measurement of propagation loss for ultra high frequency (UHF) partial discharge in the winding of power transformer using a spectrum analyzer and pulse generator is presented. We compared the performance of the method using a network analyzer with and without a winding. Using a network analyzer simplifies the measurement and offers better dynamic range and frequency range. It also provides precise propagation loss within the winding in frequency domain at UHF range. We applied this method to measure UHF propagation loss of transformer mock-up, modeled 154 kV 20 MVA power in KEPCO substation.
Keywords
Electromagnetic wave; Propagation characteristics; Transformer winding;
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