Now showing items 1-8 of 8

    • A model to explain the TSDC spectrum of XLPE insulation in mid voltage cables based on a virtual electrode 

      Belana Punseti, Juan; Diego Vives, José Antonio; Orrit Prat, Jordi; Mudarra López, Miguel (2007)
      Conference lecture
      Open Access
      The analysis by TSDC of a large variety of cables subjected to long annealing times, has resulted in spectra that sometimes show an oscillation of the current peak observed at 99°C. This process has been observed in some ...
    • Comparative study of mechanical and electrical relaxations in poly(etherimide). Part 2 

      Diaz Calleja, Ricardo; Friederichs, S.; Jaímes, C.; Sanchis, Jose Maria; Belana Punseti, Juan; Cañadas Lorenzo, Juan Carlos; Diego Vives, José Antonio; Mudarra López, Miguel (1998-05)
      Article
      Restricted access - publisher's policy
      The curves describing the relaxation behaviour of poly(etherimide) at several frequencies shows in the dielectric lossÈtemperature plot c and b relax- ations centred at [95¡C and 100¡C, respectively, at 10 Hz. The glassÈrubber ...
    • Dielectric and mechanical characterization of PVC composites with ground tire rubber 

      Orrit Prat, Jordi; Mujal-Rosas, Ramon Maria; Rahhali, A.; Marín Genescá, Marcos; Colom Fajula, Xavier; Belana Punseti, Juan (2010-10-27)
      Article
      Restricted access - publisher's policy
      The mass manufacture of tires and the difficulty for their elimination or storage constitutes a serious environmental problem. At present, several methods for the recycling of tires are used, such as mechanical crushing, ...
    • Effect of humidity in charge formation and transport in LDPE 

      Aragoneses Aguado, Andrés; Tamayo, Ildaberto; Lebrato, Alexander; Cañadas Lorenzo, Juan Carlos; Diego Vives, José Antonio; Arencón Osuna, David; Belana Punseti, Juan (2013-04-02)
      Article
      Restricted access - publisher's policy
    • Method to distinguish between space-charge and dipolar relaxation in the TSDC spectra of polyethylene electrical insulation 

      Orrit Prat, Jordi; Cañadas Lorenzo, Juan Carlos; Sellarès González, Jordi; Belana Punseti, Juan (2010)
      Conference lecture
      Open Access
      Medium-voltage cross-linked polyethylene (MV-XLPE) cables have an important role in the electrical power distribution system. For this reason, the study of XLPE insulation may lead to improve cable features and lifetime. ...
    • Pràctiques de l'assignatura 

      Botey Cumella, Muriel; Martorell Pena, Jordi; Belana Punseti, Juan; Carloa Cañadas, Joan; Diego Vives, José Antonio; Font García, Josep Lluís; Martin, Josep; Mudarra López, Miguel; Vilaseca Alavedra, Ramon; Calaf Zayas, Jaume; García Ojalvo, Jordi (Universitat Politècnica de Catalunya, 2000)
      Practice
      Open Access
    • Study of dispersive mobility in polyimide by surface voltage decay measurements 

      Aragoneses Aguado, Andrés; Mudarra López, Miguel; Belana Punseti, Juan; Diego Vives, José Antonio (ELSEVIER PUBLISHER, 2008-05)
      Article
      Open Access
      In order to study charge trapping and transport in polyimide, we have submitted samples of Kapton HN to corona charging and measured its surface potential decay with an electrostatic voltmeter. We propose a two terms ...
    • Transiciones y relajaciones en polímeros por el método de las corrientes de descarga estimulada térmicamente 

      Belana Punseti, Juan; Colomer Vilanova, Pere; Montserrat Ribas, Salvador; Pujal Carrera, Marcos (Universitat Politècnica de Barcelona, 1980-12)
      Conference report
      Open Access
      Como introducción al tema se expone el proceso de formación dei electrete, indicándose que solo se man­tiene en depósito la polarización dipolar y la carga de espacio. Se comenta la técnica de las corrientes de des­ carga ...