Comparison of contact measurement and free-space radiation measurement of partial discharge signals
Comparison of contact measurement and free-space radiation measurement of partial discharge signals
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DOI：
10.1109/iconac.2015.7313955
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发表时间：
2015-09
期刊：
影响因子：
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通讯作者：
A. Jaber;P. Lazaridis;Yong Zhang;D. Upton;H. Ahmed;U. Khan;B. Saeed;P. Mather;M. F. Vieira;R. Atkinson;M. Judd;I. Glover
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文献类型：
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作者：
A. Jaber;P. Lazaridis;Yong Zhang;D. Upton;H. Ahmed;U. Khan;B. Saeed;P. Mather;M. F. Vieira;R. Atkinson;M. Judd;I. Glover
两个局部放电（PD）测量技术，接触测量技术（类似于IEC 60270标准测量）和自由空间辐射（FSR）测量技术，比较的情况下，浮动电极PD源。得到了高压直流条件下放电脉冲波形和局部放电特性。比较表明，两个测量值之间的相似性比预期的要大。据推断，在塑造频谱的主导机制是辐射结构的频带限制效应，而不是由接收天线的频带限制。还考虑了局部放电脉冲在频域和时域的累积能量。
Two partial discharge (PD) measurement techniques, a contact measurement technique (similar to the IEC 60270 standard measurement) and a free-space radiation (FSR) measurement technique, are compared for the case of a floating electrode PD source. The discharge pulse shapes and PD characteristics under high voltage DC conditions are obtained. A comparison shows greater similarity between the two measurements than was expected. It is inferred that the dominant mechanism in shaping the spectrum is the band-limiting effect of the radiating structure rather than band limiting by the receiving antenna. The cumulative energies of PD pulses in both frequency and time domains are also considered.