Modelling of Partial Discharge Spectra Measured with Variable Applied Frequency
2003 (English)In: Proceedings of the 7th international conference on properties and applications of dielectric materials, 2003, 839-842 p.Conference paper (Refereed)
Variable Frequency Phase Resolved Partial Discharge Analysis (VF-PRPDA) is a newly developed method for partial discharge measurements. In this method the frequency of the applied voltage is variable and not fixed at the power frequency as in the standard PRPDA implementation. In this paper, simulations illuminate the frequency dependence of PD of a discharging cavity embedded in an otherwise homogeneous insulation. It is shown how the frequency dependence is influenced by the conductivity of the bulk insulation, the surface conductivity of the cavity walls and the statistical time lag. The results of simulations are compared with result of measurements on an asphalt-mica insulated machine stator bar.
Place, publisher, year, edition, pages
2003. 839-842 p.
Capacitance, Computer simulation, Electric conductivity, Electric fields, Electric impedance, Electric insulation, Electric network analysis, Electric variables measurement, Permittivity
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-8457DOI: 10.1109/ICPADM.2003.1218552ISI: 000186114700209ISBN: 0-7803-7725-7OAI: oai:DiVA.org:kth-8457DiVA: diva2:13786
7th International Conference on Properties and Applications of Dielectric Materials, NAGOYA, JAPAN, JUN 01-05, 2003
QC 201007222008-05-162008-05-162010-11-29Bibliographically approved