Search results for: ELECTRICAL TREES

• Inception and Propagation of Electrical Trees in the Presence of Space Charge in HVAC Extruded Cables

  Publication

  • M. A. Saleh
  • S. S. Refaat
  • M. Olesz
  • H. Abu-Rub

  - IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION - Year 2021

  This paper presents the space charge impact on the inception and propagation of electrical trees in cross-linked polyethylene (XLPE) insulation via simulations and experimentation. A 3D finite element analysis (FEA)-based modeling is proposed to simulate electrical trees via a needle embedded on the XLPE insulation. The proposed FEA model demonstrates the influence of the space charge magnitude and polarity on the initiation of...

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• The Impact of Thermal Stresses on Volume Resistivity: Performance Comparison between TR-XLPE and XLPE Cables

  Publication

  • J. Mohammed
  • S. S. Refaat
  • H. Abu-Rub
  • M. Olesz
  • J. Guziński

  - Year 2021

  Most failures in electric power cables are attributed to the development of water trees inside the insulating materials. Thus, the development and utilization of Tree Retardant Cross-Linked Polyethylene (TR-XLPE) based cables have recently been given great attention to overcome the treeing issues. TR-XLPE cables use low-density polyethylene compounds suppressing the formation of water trees while retaining excellent electrical,...

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