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Effect of excitation current waveform on PD induced electromagnetic wave propagation and attenuation in straight 154 kV GIS model tank with epoxy spacers
Nishigouchi K.a, Kozako M.a, Hikita M.a, Hoshino T.b, Maruyama S.b, Nakajima T.b, Khayam U.c
a Department of Electrical Engineering and Electronics, Kyushu Institute of Technology, Japan
b TOSHIBA Corporation, Japan
c Technology Bandung, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]This paper deals with effect of excitation current waveform on PD induced electromagnetic wave propagation and attenuation in straight 154 kV GIS model tank with epoxy spacers. An attempt was made to determine a standard wave shape of experimentally obtained EM wave for the simulated ones obtained by changing the rise time tr of the excitation waveform of Gaussian pulse from 25 ps to 200 ps with the propagation attenuation in GIS considered. This comparison was performed in terms of both transmission rate Tv of peak to peak value Vpp of EM wave intensity and transmission rate Tw of accumulated energy of the EM wave. The simulation revealed that as tr is shortened, both Tv and Tw decrease. As a result, it was found that simulated excitation pulse with the rise time of 25-50 ps allows the best fit to experimentally obtained Tv and T w when the calculation was made for a straight GIS structure with two epoxy spacers for a free metal particle on the tank. Furthermore, the rise time of 25-50 ps for Tv and 100-150 ps for Tw was found to give the best fit to the experimental results for a protrusion on the high voltage conductor. © 2012 IEEE.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Best fit,Epoxy spacer,Excitation currents,Excitation pulse,FDTD simulations,Free metals,Gaussian pulse,GIS models,High voltage conductors,Peak-to-peak values,Propagation attenuation,Risetimes,Transmission rates,UHF method,Wave forms,Wave intensities,Wave shape[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]electromagnetic wave propagation,excitation current,FDTD simulation,GIS,partial discharge,UHF method[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1109/CMD.2012.6416439[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]