PAPERS SELECTED FOR THE SYMPOSIUM

• THE SYSTEM CONCEPT OF PARTIAL DISCHARGES

  Dragan Kovačević - Electrical Engineering Institute Nikola Tesla in Belgrade, Serbia, Srđan Milosavljević - Electrical Engineering Institute Nikola Tesla in Belgrade, Serbia, Nenad Kartalović - Electrical Engineering Institute Nikola Tesla in Belgrade, Serbia, N.Miladinović - Electrical Engineering Institute Nikola Tesla in Belgrade, Serbia, M.Savićević - Termoelektrane „Nikola Tesla“, TENT-A, Obrenovac, Serbia

  Abstract Text

  Abstract – The paper presents the concept of the measurement and diagnostics of partial discharges on high-voltage machines and equipment. The significance of off-line and on-line tracking of partial discharges activities and machine state is emphasized. The complementarity of partial... show full text »
  Abstract Text

  Abstract – The paper presents the concept of the measurement and diagnostics of partial discharges on high-voltage machines and equipment. The significance of off-line and on-line tracking of partial discharges activities and machine state is emphasized. The complementarity of partial discharges diagnostics with other methods is emphasized. The full efficacy of partial discharges tracking and the whole of diagnostics is achieved only if a common measurement aquisition and electronic information system is formed. That means networking of individual partial discharges measurement, forming of connected data bases and knowledge bases, and forming of the corresponding expert systems. Especially important is forming of expert teams to track and develop the usage of such a system. « hide
  Symposium Session: Power Plants life cycle extension, new clean coal technologies | Produženja radnog veka elektrana i novih ekološki čistih tehnologija

• DIAGNOSTICS ELEMENT OF PARTIAL DISCHARGES

  Nenad Kartalović - Electrical Engineering Institute Nikola Tesla in Belgrade, Serbia, Dragan Kovačević - Electrical Engineering Institute Nikola Tesla in Belgrade, Serbia, Srđan Milosavljević - Electrical Engineering Institute Nikola Tesla in Belgrade, Serbia, Ð.Jovanović - Electrical Engineering Institute “Nikola Tesla”– Belgrade, I.Zec - Termoelektrane „Nikola Tesla“, TENT-A, Obrenovac, Serbia

  Abstract Text

  The paper presents the main elements of diagnostics based on the measurement of partial discharges. This area of diagnostics is in expansion enabled by the development of measurement technique and information technologies. Fundamental parameters of partial discharges are discussed. Some... show full text »
  Abstract Text

  The paper presents the main elements of diagnostics based on the measurement of partial discharges. This area of diagnostics is in expansion enabled by the development of measurement technique and information technologies. Fundamental parameters of partial discharges are discussed. Some reference examples for diagnostics are presented. Primarily, examples of internal partial discharges (cavities, delamination...), surface discharges (Endwinding surface discharges, Conductive particles, Corona discharge) are presented. Of special significance is diagnostics based on tracking the dependence of discharge on the working parameters of the machine (The effect of voltage harmonics, The effect of winding temperature, The effect of load, The effect of cooling air pressure, The effect of humidity). « hide
  Symposium Session: Power Plants life cycle extension, new clean coal technologies | Produženja radnog veka elektrana i novih ekološki čistih tehnologija