Jump to ContentJump to Main Navigation
Show Summary Details
More options …

Electrical, Control and Communication Engineering

The Journal of Riga Technical University

2 Issues per year

Open Access
Online
ISSN
2255-9159
See all formats and pricing
More options …

Air-Core Sensors Operation Modes for Partial Discharge Detection and On-line Diagnostics in Medium Voltage Networks

Lauri Kütt / Muhammad Shafiq / Matti Lehtonen / Heigo Mõlder / Jaan Järvik
Published Online: 2013-12-31 | DOI: https://doi.org/10.2478/ecce-2013-0015

Abstract

In this paper, sensors for the application of high voltage networks insulation diagnostics are focused on. For detection and localization of the components with insulation deterioration, observing the partial discharge transients is one of the main methods. However, as the partial discharge traces are transients of extremely short duration, monitoring of such transients is also a challenging task. This paper presents the inductive sensors that would be suitable for the on-line partial discharge monitoring and the selection of operating mode and characteristics are discussed. The issues of resonance and signal processing are analyzed for the targets of reaching highest accuracy of the measurements. Operation criteria and performance limits such as sensitivity and upper bandwidth are particularly discussed. It is presented that in order to reach highest accuracy and sensitivity the sensor should be used in damped mode. Applying the accurate air-core inductive sensors would allow the condition monitoring systems to be cheaper and thus mounted for permanent and continuous condition monitoring in various locations in the power distribution networks.

Keywords : Power distribution faults; current measurement; pulse measurements; partial discharge measurement

  • [1] A. Lvovs, A. Mutule, “Customer Dissatisfaction Index and Its Improvement Costs”, Energetika un elektrotehnika Scientific Journal of RTU, Iss. 4, Vol. 27, 2010, pp. 21 - 26.Google Scholar

  • [2] F. Wester, E. Gulski, J. Smit, E. Groot, “Aspect of On-line and Off-line PD Diagnosis of Distribution Power Cables”, 2002 IEEE International Symposium on Electrical Insulation, pp. 553 - 556.Google Scholar

  • [3] S.A.Boggs, “Partial Discharge-III Cavity Induced PD in Solid Dielectrics”, IEEE Electrical Insulation Magazine, Volume: 6, Issue: 6, pp.11 - 16, 1990.CrossrefGoogle Scholar

  • [4] Yao Xiao, Jun Fu, Bin Hu, Xiaoping Li, Chunnian Deng, "Problems of voltage transducer in harmonic measurement", IEEE Transactions on Power Delivery, Vol. 19, No. 3, Jul 2004, pp. 1483 - 1487.CrossrefGoogle Scholar

  • [5] G. Stone, “Importance of bandwidth in PD measurement in operating motors and generators”, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 7 , Iss. 1, Feb 2000, pp. 6 - 11.Google Scholar

  • [6] G.M. Hashmi, M. Lehtonen, M. Nordman, ”Calibration of on-line partial discharge measuring system using Rogowski coil in coveredconductor overhead distribution networks”, IET Science, Measurement & Technology, Vol. 5, Iss. 1, Jan 2011, pp. 5 - 13.Web of ScienceGoogle Scholar

  • [7] Xin Li, Chengrong Li, Wei Wang, Bin Wei, Weijiang Wan, “Partial discharge measurement in XLPE cable joint by using VHF sensor”, 2004 IEEE International Conference on Solid Dielectrics, ICSD 2004, Vol.2, pp. 669 - 671.Google Scholar

  • [8] G. Robles, J.M. Martinez-Tarifa, M. V. Rojas-Moreno, J. Sanz-Feito, “Inductive Sensor for Measuring High Frequency Partial Discharges Within Electrical Insulation”, IEEE Transactions on Instrumentation and Measurement, Vol. 58, Iss. 11, Nov 2009, pp. 3907 - 391.Web of ScienceGoogle Scholar

  • [9] Baocheng Wang, Deyu Wang, Weiyang Wu, “A Rogowski coil current transducer designed for wide bandwidth current pulse measurement”, 2009 IEEE 6th International Power Electronics and Motion Control Conference, IPEMC '09, pp. 1246 - 1249.Google Scholar

  • [10] P. Valatka, V. Sučila, G. Daukšys, "Investigation of the Voltage Influence on Partial Discharge Characteristic Parameters in Solid Insulation", Electronics and Electrical Engineering, No.10 (106), 2010, pp. 63 - 66.Google Scholar

  • [11] G.J. Paoletti, A. Golubev, "Partial discharge theory and technologies related to medium-voltage electrical equipment", IEEE Transactions on Industry Applications, Vol. 37, Jan/Feb 2001, pp. 90 - 103.Google Scholar

  • [12] N. Ida, “Engineering Electromagnetics” (Second Edition), Springer New York, 2004.Google Scholar

  • [13] M. Rezaee, H. Heydari, Mutual inductances comparison in Rogowski coil with circular and rectangular cross-sections and its improvement; 3rd IEEE Conference on Industrial Electronics and Applications, 2008 (ICIEA 2008), pp. 1507 - 1511.Google Scholar

  • [14] L. Kütt, J. Järvik, H. Mõlder, J. Kilter, S. Muhammad, Magnetic Current Sensor Stray Components in High Frequency Operation and their Effects, 11th Conference on Environment and Electrical Engineering (EEEIC) 2012, 6 p.Google Scholar

  • [15] M. Shafiq, L. Kütt, M. Lehtonen, T. Nieminen, G. M. Hashmi, “Parameters Identification and Modeling of High Frequency Current Transducer for Partial Discharge Measurements”, IEEE Sensors Journal, Vol. 13, Iss. 3, Mar 2013, pp. 1081 - 1091.CrossrefGoogle Scholar

  • [16] L. Kütt, M. Shafiq, J. Järvik, M. Lehtonen, J. Kilter, "Air-core inductive current sensor for fast transients measurements in distribution networks", 2012 Electric Power Quality and Supply Reliability Conference (PQ2012), 4 p.Google Scholar

  • [17] L. Kütt, M. Shafiq, M. Lehtonen, H. Mõlder, J. Järvik, “Sensor Resonance and its Influence on the Measurement Results of Fast Transients”, 2013 International Conference on Power Systems Transients (IPST2013), 7 p.Google Scholar

  • [18] N. Breners, N. Skobeleva, “Mathematical Models for Choice of Measures on Functioning Reliability Increase of Power Transformers”, Energetika un elektrotehnika Scientific Journal of RTU, Iss. 4, Vol. 27, 2010, pp. 64 - 68.Google Scholar

About the article

Lauri Kütt

Lauri Kütt is received his Ph.D in 2012 from Tallinn University of Technology for the thesis of inductive sensors for measurements of fast pulsed transients. Currently he is working as a post-doc researcher in Department of Electrical Engineering in Aalto University School of Electrical Engineering, Finland. His current research topics include partial discharge measurements and power quality in distribution networks. E-mail: lauri.kutt@aalto.fi Postal address: Department of Electrical Engineering, Aalto University School of Electrical Engineering, Otakaari 5, 01250 Espoo, Finland.

Muhammad Shafiq

Muhammad Shafiq received his M.Sc degree in Electrical Engineering from University of Engineering and Technology (UET), Lahore, Pakistan in 2007. He is currently working as a post-graduate researcher in Department of Electrical Engineering in Aalto University School of Electrical Engineering, Finland. His field of work is related to partial discharge measurements and online insulation condition monitoring using the partial discharge measurements. E-mail: muhammad.shafiq@aalto.fi Postal address: Department of Electrical Engineering, Aalto University School of Electrical Engineering, Otakaari 5, 01250 Espoo, Finland.

Matti Lehtonen

Matti Lehtonen received his D.Sc. (Tech) degree from Tampere University of Technology, Tampere, Finland, in 1992 and is working as a professor in Department of Electrical Engineering in Aalto University School of Electrical Engineering, Finland. His fields of research include distribution network reliability, power quality and planning of distribution supply. E-mail: matti.lehtonen@aalto.fi Postal address: Department of Electrical Engineering, Aalto University School of Electrical Engineering, Otakaari 5, 01250 Espoo, Finland.

Heigo Mõlder

Heigo Mõlder received his Ph.D degree from Tallinn University of Technology for the thesis in topics of electromagnetic modeling of complex systems. Currently he is working as a researcher in Department of Electrical Engineering in Tallinn University of Technology, Estonia. He is working with topics of electromagnetic compatibility and electromagnetic field modeling. E-mail: heigo.molder@ttu.ee Postal address: Department of Electrical Engineering, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia.

Jaan Järvik

Jaan Järvik received his doctoral candidate degree in 1971 from Leningrad Polytechnic Institute (now St.Petersburg Technical University). Currently he is working as a professor in Department of Electrical Engineering in Tallinn University of Technology, Estonia. He has long experience in working with topics of reactive power compensation, power supply reliability and fundamentals of electrical engineering. E-mail: jaan.jarvik@ttu.ee Postal address: Department of Electrical Engineering, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia.


Published Online: 2013-12-31

Published in Print: 2013-12-01


Citation Information: Electrical, Control and Communication Engineering, ISSN (Online) 2255-9159, ISSN (Print) 2255-9140, DOI: https://doi.org/10.2478/ecce-2013-0015.

Export Citation

This content is open access.

Comments (0)

Please log in or register to comment.
Log in