Electrical Conductivity of Oil-Impregnated Pressboard Barrier Systems for HVDC Transformer Insulation
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Beschreibung
High-voltage direct current (HVDC) power transmission is an efficient solution for energy
transmission over long distances and asynchronous coupling between two AC networks.
Onemajor concern of HVDC transmission is the design of an optimal insulation system.
Theinsulation materials in HVDC insulation system are exposed to composite AC, DC and mixed stresses. Therefore, the determination of electric field distributions within multi-layered insulation systems requires understanding of electrical conductivity and permittivity of insulation materials.
This thesis investigates the electrical conductivity of insulating oil and oilimpregnated pressboard.
Autor*in
Farzaneh Vahidi
Themen in »Electrical Conductivity of Oil-Impregnated Pressboard Barrier Systems for HVDC Transformer Insulation«
Charge transport model Electic field distribution Electrical condcitivity measurement HVDC Transformer insulation Hochspannungstechnik Insulating oil conductivity Insulation system Parameter dependencies Pressbord conductivity