Browsing by Author "Rajagopala, K."

Filter results by typing the first few letters
Now showing 1 - 3 of 3
  • No Thumbnail Available
    Item
    Computation of electric field and thermal properties of 3-phase cable
    (Universitas Ahmad Dahlan thsutikno@ieee.org, 2012) Rajagopala, K.; Vittal, K.P.; Lunavath, H.
    In this paper the electric field distribution, potential distribution and temperature distribution in a 3-phase underground cable in common ground enclosure is analyzed and presented. Unlike 3-Phase screened cable the stress distribution in a belted cable is not radial. A 3-phase high voltage power cable buried in soil can be used to investigate its electrical and thermal properties. In the present study the voltage distribution of an underground cable of 132 kV is analyzed using FEM and its ampacity and temperature distribution is calculated by analytical method. Further their performance parameter is verified using Comsol Multiphysics software. The results obtained using comsol software is also compared with the results of CSM model which is obtained through literature review. © 2012 Universitas Ahmad Dahlan.
  • Thumbnail Image
    Item
    Electric field and potential calculation in 10, 15 and 20 kv water infested power cables
    (2008) Rajagopala, K.; Ravindran, M.P.; Kannu, P.D.
    Power cables are used in the transmission network in cities and for overseas power transmission. The polyethylene cables used for medium voltage were vulnerable to breakdown due to water treeing. Water treeing significantly reduces the electric breakdown strength of the insulation. The presence of water tree results in the reduction of their dielectric strength. Here the finite element simulation technique is used to evaluate the electric field inside the 10 kV 15 kV and 20 kV power cables. A model that illustrates the water-dielectric interface within the cable insulation system is proposed. The link between the local field concentration in the vicinity of water void and the possibility of insulation failure, which can be developed to a complete breakdown is discussed. � 2008 IEEE.
  • No Thumbnail Available
    Item
    Electric field and potential calculation in 10, 15 and 20 kv water infested power cables
    (2008) Rajagopala, K.; Ravindran, M.P.; Kannu, P.D.
    Power cables are used in the transmission network in cities and for overseas power transmission. The polyethylene cables used for medium voltage were vulnerable to breakdown due to water treeing. Water treeing significantly reduces the electric breakdown strength of the insulation. The presence of water tree results in the reduction of their dielectric strength. Here the finite element simulation technique is used to evaluate the electric field inside the 10 kV 15 kV and 20 kV power cables. A model that illustrates the water-dielectric interface within the cable insulation system is proposed. The link between the local field concentration in the vicinity of water void and the possibility of insulation failure, which can be developed to a complete breakdown is discussed. © 2008 IEEE.