Assessment of Solid Insulating Material Using Partial Discharge Characteristics

Authors: Qasim Khan, Furkan Ahmad, Asfar A. Khan, M. Saad Alam, Faiz Ahmad

Abstract:

In this paper, partial discharge analysis is performed in cavities artificially created in insulation. The setup is according with Cigre-II Method. Circular Samples created from Perspex Sheet with different configuration with changing number of cavities. Assessment of insulation health can be performed by Partial Discharge measurement as this has been found to be important means of condition monitoring. The experiments are done using MPD 540, which is a modern partial discharge measurement system. By analyzing the PD activity obtained for various voids/cavities, it is observed that the PD voltages show variation for cavity’s diameter, depth even for its ratios. This can be employed for scrutiny of insulation system.

Keywords: Partial discharges, condition monitoring, MPD 540, cavities/defects, degradation and corrosion, PMMA.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1124057

References:

[1] R. Liao, Y. Fernandess, K. Tavernier, G. A. Taylor, and M. R. Irving “Recognition of Partial Discharge Patterns”, IEEE Power and Energy Society General Meeting, pp.1-8, 2012.
[2] F. H. Krueger, Discharge detection in high voltage equipment. Temple Press Books Ltd, London, 1964.
[3] S. Whitehead, Dielectric Breakdown of Solid, Chapter 4 “Breakdown caused by Discharges”, Oxford, Clarendon Press, UK, 1950.
[4] R. Bartnikas,” Partial Discharges: Their Mechanism, Detection and Measurement”, IEEE Trans. Dielectr. Electr. Insul., Vol. 9, No.5, pp.763-808, 2002.
[5] F. H. Kreuger, “Partial Discharge Detection in High-Voltage Equipment,” Butterworths, 1989
[6] A. Haddad and D. Warne, eds. Advances in High Voltage Engineering, Chapter 4“Partial Discharge and their Measurement”, IEE, UK, 2004.
[7] F. H. Kreuger, E. Gulski and A. Krivda, “C1assification of Partia1 Discharges”, IEEE Trans. Dielectr. Electr. Insul., Vol. 28 No. 6, pp. 917-931, 1993.
[8] P. H. F. Morshuis, “Partial discharge mechanisms,” PhD dissertation, Dept. Electr. Eng., Delft Univ., Delft, the Netherlands, 1993.
[9] P. H. F. Morshuis, “Degradation of solid dielectrics due to internal partial discharges: Some thoughts on progress made and where to go now,” IEEE Trans. Dielectr. Electr. Insul., vol. 12, pp. 905–913, 2005.
[10] P. Morshuis, “Assessment of Dielectric Degradation by Ultra-wideband PD Detection”, IEEE Trans. Dielectr. Electr. Insul. , Vol. 2, pp. 744-760, 1995.
[11] M.H. Nazemi, V. Hinrichsen, “Experimental Investigations on Water Droplet Oscillation and Partial Discharge Inception Voltage on Polymeric Insulating Surfaces under the Influence of AC Electric Field Stress”, IEEE Trans. Dielectric Insul., Vol. 20, No.2, pp. 443-453, 2012.
[12] IEC Standards 60270, Partial Discharge Measurements, 2000.
[13] J. Li, W. Si, X. Yao and Y. Li, “Partial Discharge Characteristics over Differently Aged Oil/pressboard Interfaces”, IEEE Trans. Dielectr. Electr. Insul., Vol. 16, No. 6, pp. 1640-1647, 2009.
[14] A. Bui, A. Khedim, A. Loubière, and M. B. Kourdi, "Aging of zinc oxide varistors subjected to partial discharges in sulfur hexafluoride. “J. Appl. Phys., Vol. 69, pp. 1036-1040, 1991.
[15] L. Testa, S. Serra, and G. C. Montanari, "Advanced modeling of electron avalanche process in polymeric dielectric voids: Simulations and experimental validation," J. Appl. Phys., Vol. 108, pp. 1-10, 2010.
[16] S. Jones, A. Kingsmill, M. Blundell, J.Gabb and G. Slade, "On-line condition monitoring of high voltage equipment in two transmission networks in australia", International Conference on Large Electric systems, Quennsland, Australia-2006.
[17] R. Ambikairajah, B.T. Phung, J. Ravishankar, T. R. Blackburn and Z. Liu, "Smart sensors and online condition monitoring of high voltage cables for the smart grid", International Middle East Power Systems Conference , Sidney, Australia, December 19-21, 2010.
[18] F.Garnacho, I.Trasmonte et al., “On-site measurements experiences in insulation condition for medium and high voltage cables”, CIGRE, D1-201, 2008.
[19] Standard for Partial Discharge Test Procedure, Publication ICEA T-24-380, 2006.
[20] Mtronix: Advanced PD Analysis System MPD 540, “Product Brief and Technical Specification,” Berlin,Germany, 2004.
[21] M.S. Naidu, and V. Kamraju, High voltage engineering handbook, 4th Edition TMH Publishers, 2006.