Title :
A simulation model for propagation of partial discharge pulses in transformers
Author :
Wang, Z.D. ; Crossley, P.A. ; Cornick, K.J.
Author_Institution :
Dept. of Electr. Eng. & Electron., Univ. of Manchester Inst. of Sci. & Technol., UK
Abstract :
Partial discharge (PD) measurement is widely accepted as a quality control test for power transformers due to its ability to detect incipient insulation faults. For further development of PD testing as a diagnostic tool, it is important to study the propagation of PD pulses in transformers. A general simulation model is necessary which should include the different construction of transformer windings. In this paper, a simulation model is introduced which is constructed in the frequency domain and which takes account of the frequency dependent characteristics of transformer windings. A description of parameter calculation methods and system solutions is given. Some simulation results are presented. The promising application of this model in the simulation study of PD´s in power transformers is outlined
Keywords :
electric breakdown; frequency-domain analysis; partial discharge measurement; power transformer insulation; transformer cores; transformer windings; frequency domain model; incipient insulation fault detection; parameter calculation methods; partial discharge pulse propagation; power transformers; quality control test; simulation model; transformer windings; Fault detection; Insulation testing; Partial discharge measurement; Partial discharges; Power measurement; Power system modeling; Power transformers; Pulse transformers; Quality control; Windings;
Conference_Titel :
Power System Technology, 1998. Proceedings. POWERCON '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4754-4
DOI :
10.1109/ICPST.1998.728943
