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Conductivity measurements and space charge inference in polymeric-insulated HVDC model cables
Steven J.Y.b,c, Vu T.T.N., Teyssedre G., Sinisuka N.I.b
a LAPLACE, Université Paul Sabatier, Toulouse, 31062, France
b Institut Teknologi Bandung, Bandung, 40132, Indonesia
c PT. PLN (Persero), Jakarta, 12160, 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]© 2014 IEEE.The general objective of this work is to obtain a better understanding of polymeric-insulated HVDC cable characteristics, especially related with conduction current and space charge features. It goes with the building of a model of conductivity vs. field and temperature in order to forecast field distribution in cables. Conduction current was measured in miniature of HVDC power cables with construction 1.5mm polymer insulation thickness, 0.7mm inner semiconductor, 0.15mm outer semiconductor and conductor diameter of 1.4mm. Current measurements were performed with applied voltage varying from 2kV to 30kV and temperature in the range from 30°C to 90°C. The time of polarization (voltage applied) and depolarization (short-circuit) were 1h/1h. The results show that there is not a single conduction mechanism for all applied fields and in the all temperature range. The conductivity is clearly non-linear at voltages above about 10kV (field at inner semicon of 10kV/mm), the threshold being dependent on temperature. With the increase in thermal and electrical stresses, transient currents appear characteristic of processes with massive charge injection at the electrode and therefore the treatment of transport based on a homogeneous conductivity is no longer a sufficient hypothesis.[/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]Conduction current,Conduction Mechanism,Conductivity measurements,Conductor diameters,HVDC cables,Polymer insulation,Polymeric insulation,XLPE[/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]conduction current,conductivity,HVDC Cables,polymeric insulation,space charge,XLPE[/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/ICHVE.2014.7035386[/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]