Design, Implementation and Simulation of Non-Intrusive Sensor for On-Line Condition Monitoring of MV Electrical Components


Non-intrusive measurement technology is of great interest for the electrical utilities in order to avoid an interruption in the normal operation of the supply network during diagnostics measurements and inspections. Inductively coupled electromagnetic sensing provides a possibility of non-intrusive measurements for online condition monitoring of the electrical components in a Medium Voltage (MV) distribution network. This is accomplished by employing Partial Discharge (PD) activity monitoring, one of the successful methods to assess the working condition of MV components but often requires specialized equipment for carrying out the measurements. In this paper, Rogowski coil sensor is presented as a robust solution for non-intrusive measurements of PD signals. A high frequency prototype of Rogowski coil is designed in the laboratory. Step-by-step approach of constructing the sensor system is presented and performance of its components (coil head, damping component, integrator and data acquisition system) is evaluated using practical and simulated environments. Alternative Transient Program-Electromagnetic Transient Program (ATP-EMTP) is used to analyze the designed model of the Rogowski coil. Real and simulated models of the coil are used to investigate the behavior of Rogowski coil sensor at its different stages of development from a transducer coil to a complete measuring device. Both models are compared to evaluate their accuracy for PD applications. Due to simple design, flexible hardware, and low cost of Rogowski coil, it can be considered as an efficient current measuring device for integrated monitoring applications where a large number of sensors are required to develop an automated online condition monitoring system for a distribution network.

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Shafiq, M. , Lehtonen, M. , Kutt, L. and Isa, M. (2014) Design, Implementation and Simulation of Non-Intrusive Sensor for On-Line Condition Monitoring of MV Electrical Components. Engineering, 6, 680-691. doi: 10.4236/eng.2014.611067.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Mahmoudi, M., Barkany, A. and Khalfi, A. (2014) A Maintenance Optimization Policy for an Electric Power Distribution System: Case of the HV/MV Substations. Engineering, 6, 236-253.
[2] Electro Technical Commission (IEC) 60270, High-Voltage Test Techniques.
[3] Moore, P.J., Portugues, I.E. and Glover, I.A. (2005) Radiometric Location of Partial Discharge Sources on Energized High-Voltage Plant. IEEE Transactions on Power Delivery, 20, 2264-2272.
[4] Muhr, M., Strehl, T., Gulski, E., Feser, K., Gockenbach, E., Hauschild, W. and Lemke, E. (2006) Sensors and Sensing Used for Non-Conventional PD Detection. CIGRE, Paris, 1-7.
[5] Schwarz, R., Muhr, M. and Pack, S. (2005) Evaluation of Partial Discharge Impulses with Optical and Conventional Detection Systems. Proceedings of the 24th International Symposium on High Voltage Engineering, Beijing.
[6] Lundgaard, L.E. (1992) Partial Discharge. XIV. Acoustic Partial Discharge Detection-Practical Application. IEEE Electrical Insulation Magazine, 8, 34-43.
[7] Zhao, X.L., Asada, T., Odendaal, W.G. and Van Wyk, J.D. (2003) An Overview of Integratable Current Sensor Technologies. Industry Applications Conference, 38th IAS Annual Meeting, 2, 1251-1258.
[8] Robles, G., Argueso, M., Sanz, J., Giannetti, R. and Tellini, B. (2007) Identification of Parameters in a Rogowski Coil Used for the Measurement of Partial Discharges. IEEE Instrumentation and Measurement Technology Conference (IMTC) Proceedings, Warsaw, 1-3 May 2007, 1-4.
[9] Jalebi, A. and McMahon, R. (2007) High-Performance Low-Cost Rogowski Transducers and Accompanying Circuitry. IEEE Transactions on Instrumentation and Measurement, 3, 354-358.
[10] Poncelas, O., Rosero, J.A., Cusido, J., Ortega, J.A. and Romeral, L. (2008) Design and Application of Rogowski Coil Current Sensor without Integrator for Fault Detection in Induction Motors. IEEE International Symposium on Industrial Electronics, Cambridge, 30 June-2 July 2008, 558-563.
[11] Zhu, J., Yang, L., Jia, J. and Zhang, Q. (2005) The Design of Rogowski Coil with Wide Band Using for Partial Discharge Measurements. Proceeding of International Symposium on Electrical Insulating Materials, 5-9 June 2005, 518-521.
[12] Kojovic, L. (1997) Rogowski Coils Suit Relay Protection and Measurement. IEEE Computer Applications in Power, 10, 47-52.
[13] Knight, D.W. (2010) The Self-Resonance and Self-Capacitance of Solenoid Coils. Version 0.01 (Provisional).
[14] Shafiq, M., Kütt, L., Lehtonen, M., Nieminen, T. and Hashmi, M. (2013) Parameters Identification and Modeling of High Frequency Current Transducer for Partial Discharge Measurements. IEEE Sensors Journal, 13, 1081-1091.
[15] Shafiq, M., Lethonen, M., Kutt, L., Hussain, G.A. and Hashmi, M. (2013) Effect of Terminating Resistance on High Frequency Behavior of Rogowski Coil for Transient Measurements. Journal of Electronics and Electrical Engineering (Elektronika Ir Elektrotechnika), 19, 22-28.
[16] Lance, D.S. (2004) An Accelerometer Based Approach to Measuring Displacement of a Vehicle Body. University of Michiga, Dearborn.
[17] Shafiq, M., Kütt, L., Isa, M., Hashmi, M. and Lehtonen, M. (2012) Directional Calibration of Rogowski Coil for Localization of Partial Discharges in Smart Distribution Networks. International Review of Electrical Engineering, 7, 5881-5890.
[18] Shafiq, M., Lehtonen, M., Isa, M. and Kutt, L. (2013) Online Partial Discharge Diagnostics in Medium Voltage Branched Cable Networks. Proceedings of IEEE International Conference on Power Engineering, Energy and Electrical Drives (POWERENG 2013), Istanbul, 13-17 May 2013, 246-251.
[19] Kane, C. and Golubev, A. (2010) Field Results of Monitoring Partial Discharges on In-Service Large Power Transformers. Proceedings of the Conference Record of the IEEE International Symposium on Electrical Insulation, San Diego, 6-9 June 2010, 1-8.

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