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International Journal of Emerging Electric Power Systems

Editor-in-Chief: Sidhu, Tarlochan

Ed. by Khaparde, S A / Rosolowski, Eugeniusz / Saha, Tapan K / Gao, Fei

CiteScore 2018: 0.86

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Source Normalized Impact per Paper (SNIP) 2018: 0.430

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Volume 19, Issue 1


Evaluation of Partial Discharge Signatures Using Inductive Coupling at On-Site Measuring for Instrument Transformers

Douglas Aguiar do NascimentoORCID iD: http://orcid.org/0000-0002-5464-3015 / Yuzo IanoORCID iD: http://orcid.org/0000-0002-9843-9761 / Hermes José LoschiORCID iD: http://orcid.org/0000-0001-8057-0991 / Luiz Antonio de Sousa FerreiraORCID iD: http://orcid.org/0000-0002-3788-6971 / José Antônio Donizete RossiORCID iD: http://orcid.org/0000-0002-2149-6602 / Clayton Duarte PessoaORCID iD: http://orcid.org/0000-0003-3675-1060
Published Online: 2018-01-18 | DOI: https://doi.org/10.1515/ijeeps-2017-0160


This paper describes the use of conventional and unconventional partial discharge tests by capacitive and inductive coupling in Instrument Transformers (IT). The objective of this work was to evaluate Phase-Resolveld Partial Discharge (PRPD) signatures features obtained during on-site (online) and laboratory (offline) measurements, by comparing results with state-of-the-art patterns and standard recommendations. The analysis of the results showed that is possible to obtain partial discharge (PD) patterns - corona, background noise, internal PD, free potential and surface PD - at on-site measurements but those are compromised by the pulse attenuation, difficulties in performing measuring system calibration and the absence of reference voltage. Suitable range of on-site measuring was above 1 MHz up to 5 MHz. The results reached in on-site measuring can be used as image preprocessing methodology to perform automatic pattern recognition of partial discharge signature. It is also described the parameterization of the HFCT for different frequency filter values though carrying out HFCT parameterization for different types of high voltage equipment was not objective of this work.

Keywords: Partial discharges; PRPD; Instrument transformers; Epoxy resin insulation; Oil insulation


  • [1]

    Ping CY, Piau CC, Thayoob YHM, Ahmed SK. Analysis and characterization of partial discharge signals from instrument transformer in noisy environment. The 3rd National Graduate Conference. 2015; Universiti Tenaga Nasional (April):8–9.Google Scholar

  • [2]

    Electric -GE-G. Instrument transformer basic technical information and application. Digital Energy ITI. 2009;1–12.Google Scholar

  • [3]

    ABB. Instrument transformers application guide. ABB AB - High Voltage Products 2009;1–128.Google Scholar

  • [4]

    Jacob ND, McDermid WM. Experience with partial discharge measurements on instrument transformers in high voltage laboratory acceptance tests. Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference. 2012;1–4. DOI: CrossrefGoogle Scholar

  • [5]

    Morshuis PHF. Degradation of solid dielectrics due to internal partial discharge: some thoughts on progress made and where to go now. IEEE Trans Dielectr Electr Insul. 2005;12(5):905–13.CrossrefGoogle Scholar

  • [6]

    Ardila-Rey JA, Rojas-Moreno MV, Martínez-Tarifa JM, Robles G. Inductive sensor performance in partial discharges and noise separation by means of spectral power ratios. Sensors (Switzerland). 2014;14(2):3408–27.CrossrefGoogle Scholar

  • [7]

    Paoletti G, Golubev A. Partial discharge theory and applications to electrical systems. Conference Record of 1999 Annual Pulp and Paper Industry Technical Conference (Cat. No.99CH36338). 1999;124–38. DOI: .CrossrefGoogle Scholar

  • [8]

    Kannan M, Sreejaya PP. Partial discharge detection in solid dielectrics. Int J Scientific Eng Res. 2013;4(8):6.Google Scholar

  • [9]

    Montanari GC, Cavallini A. Insulation condition assessment of power equipments in electrical assets based on on-line monitoring of partial discharges. Proceedings of 2008 International Conference on Condition Monitoring and Diagnosis, CMD 2008. 2007;7–12. DOI: .CrossrefGoogle Scholar

  • [10]

    Lemke E, Berlijn S, Gulski E, Muhr M, Pultrum E, Strehl T, et al. Guide for electrical partial discharge measurements on compliance to IEC 60270. Electra. 2008;241:61–67.Google Scholar

  • [11]

    Bureau of Indian Standards. IEC 60270: high-voltage test techniques - partial discharge measurements. Indian Standard 2011.Google Scholar

  • [12]

    Niemeyer L. A generalized approach to partial discharge modeling. IEEE Trans Dielectr Electr Insul. 1995;2(4):510–28.CrossrefGoogle Scholar

  • [13]

    Niasar MG. Partial discharge signatures of defects in insulation systems consisting of oil and oil-impregnated paper. KTH School of Electrical Engineering. Kungl Tekniska högskolan, 2012.Google Scholar

  • [14]

    Muhr M, Schwarz R. Partial discharge measurement as a diagnostic tool for HV-equipments. 2006 IEEE 8th International Conference on Properties and Applications of Dielectric Materials. 2006;195–98. DOI: CrossrefGoogle Scholar

  • [15]

    Omicron. MPD 600 - Next generation partial discharge analysis system. Manual 2006.Google Scholar

  • [16]

    Cavallini A, Montanari GC, Contin A, Puletti F. A new approach to the diagnosis of solid insulation systems based on PD signal inference. IEEE Electrical Insulation Magazine 2003;19(2):23–30.CrossrefGoogle Scholar

  • [17]

    Prabu GR, Chandrasekar S. Classification of single PD sources of HV transformer insulation faults using PRPD pattern features and ANN approach. Asian J Res Soc Sci Humanities 2016;6(8):1935–52.CrossrefGoogle Scholar

  • [18]

    Wang M, Vandermaar AJ, Srivastava KD. Review of condition assessment of power transformers in service. Electrical Insulation Magazine, IEEE 2002;18(6):12–25.CrossrefGoogle Scholar

  • [19]

    Illias H, Yuan TS, Halim A, Bakar A, Chen G, Lewin PL. Partial discharge patterns in high voltage insulation. IEEE International Conference on Power and Energy (Pecon) 2012a;December:750–55.Google Scholar

  • [20]

    Jee Keen Raymond W, Illias HA, Abu Bakar AH. Classification of partial discharge measured under different levels of noise contamination. Plos One. 2017;12(1):e0170111.CrossrefGoogle Scholar

  • [21]

    Bartnikas R. Partial discharges their mechanism, detection and measurement. IEEE Trans Dielectr Electr Insul 2002;9(5):763–808.CrossrefGoogle Scholar

  • [22]

    Álvarez F, Garnacho F, Ortego J, Sánchez-Urán MÁ. Application of HFCT and UHF sensors in on-line partial discharge measurements for insulation diagnosis of high voltage equipment. Sensors. 2015;7360–87. DOI: CrossrefGoogle Scholar

  • [23]

    Mukhtaruddin A, Isa M, Adzman MR, Hassan SIS, Rohani MNKH, Yii CC. Techniques on partial discharge detection and location determination in power transformer. In: 3rd International Conference on Electronic Design (ICED), 2016: 537–42. 10.1109/ICED.2016.7804703.Google Scholar

  • [24]

    Elfaraskoury A, Mokhtar M, Mehanna M, Gouda O. Conventional and un-conventional partial discharge detection methods in high voltage XLPE cable accessories. Adv Electrical Eng Syst (AEES). 2012;1(4):170–76.Google Scholar

  • [25]

    Gulski E, Koltunowicz W, Ariaans T, Behrmann G, Jongen R, Garnacho F, et al. Guidelines for partial discharge detection using conventional (IEC 60270) and unconventional methods. Electra. 2016;288:25–29.Google Scholar

  • [26]

    Álvarez F, Garnacho F, Ortego J, Sánchez-Urán MÁ. Application of HFCT and UHF sensors in on-line partial discharge measurements for insulation diagnosis of high voltage equipment. Sensors (Switzerland). 2015;15(4):7360–87.CrossrefGoogle Scholar

  • [27]

    Nattrass DA, Consultant T. Partial discharge measurement and interpretation. IEEE Electrical Insulation Magazine. 1988;4(3):10–23.CrossrefGoogle Scholar

  • [28]

    Fuhr J. Procedure for identification and localization of dangerous pd sources in power transformers. IEEE Trans Dielectr Electr Insul. 2005;12(5):1005–14.CrossrefGoogle Scholar

  • [29]

    Robles G, Martínez-Tarifa JM, Rojas-Moreno MV, Sanz-Feito J. Inductive sensor for measuring high frequency partial discharges within electrical insulation. IEEE Trans Instrum Meas. 2009;58(11):3907–13.CrossrefGoogle Scholar

  • [30]

    Haghjoo F, Sarlak M, Shahrtash SM. Implementation of an on-line PD measurement system using HFCT. Eng Technol. 2009;37(January):974–80.Google Scholar

  • [31]

    Ardila-Rey JA, Martínez-Tarifa JM, Robles G, Rojas-Moreno M. Partial discharge and noise separation by means of spectral-power clustering techniques. IEEE Trans Dielectr Electr Insul. 2013;20(4):1436–43.CrossrefGoogle Scholar

  • [32]

    Giaccheta LB. Manual: measurement of partial discharges and new methods of analysis (‘Medição de Descargas Parciais E Novos Métodos de Análise’). 2011.Google Scholar

  • [33]

    Cavallini A, Montanari GC, Codet B, Vetu P. Condition assessment of instrument transformer by partial discharge analysis: a comprehensive approach. IEEE/PES Transmission and Distribution Conference and Exhibition 2006;7. DOI: .CrossrefGoogle Scholar

  • [34]

    Fuhr J. Condition assessment of power transformers. IEEE International Conference on Condition Monitoring and Diagnosis. 2012;September:9–17.Google Scholar

  • [35]

    Krüger M. Partial discharge measurement: pattern recognition. Manual: Omicron, 2015.Google Scholar

  • [36]

    Zhang S, Chengrong L, Wang K, Jinzhong L, Liao R, Zhou T, et al. Improving recognition accuracy of partial discharge patterns by image-oriented feature extraction and selection technique. IEEE Trans Dielectr Electr Insul. 2016;23(2):1076–87.CrossrefGoogle Scholar

  • [37]

    Jacob ND, McDermid WM, Kordi B. On-line monitoring of partial discharges in a HVDC station environment. IEEE Trans Dielectr Electr Insul. 2012;19(3):925–35.CrossrefGoogle Scholar

  • [38]

    OMICRON. MPD 600 user manual. no. Manual Version: MPD600.AE.7 ©. 2013.Google Scholar

  • [39]

    TechImp. Clamp HF current transformer 39. Datasheet HFCT Clamp 39 mm. 2010: 50–51.Google Scholar

  • [40]

    Rethmeier K, Krüger M, Kraetge A, Plath R, Koltunowicz W, Obralic A, et al. Experiences in on-site partial discharge measurements and prospects for PD monitoring. Proceedings of 2008 International Conference on Condition Monitoring and Diagnosis, CMD 2008. 2007;1279–83. DOI: .CrossrefGoogle Scholar

  • [41]

    Zhou X, Qian Y, Liu M. The application of partial discharge detection for the condition assessment of XLPE power cables. Przegląd Elektrotechniczny. 2012;88(6):313–16.Google Scholar

  • [42]

    Jianhua L, Guijunfeng G, Xiyang C, Yunfeng X, Jianhua H. Cluster analysis of partial discharge based on image edge detection. 2015 8th International Conference on Intelligent Computation Technology and Automation (ICICTA). 2015;1:290–94.Google Scholar

  • [43]

    Altenburger R, Heitz C, Timmer J. Analysis of phase-resolved partial discharge patterns of voids based on a stochastic process approach. J Phys D Appl Phys. 2002;35(11):1149–63.CrossrefGoogle Scholar

  • [44]

    Krivda A. Automated recognition of partial discharges. IEEE Trans Dielectr Electr Insul. 1995;2(5):796–821.CrossrefGoogle Scholar

  • [45]

    Giaccheta LB. OMICRON. Medição de Descargas Parciais E Novos Métodos de Análise, ‘Measurement of Partial Discharges and New Methods of Analysis’. In: XV ERIAC- Décimo Quinto Encontro Regional Íbero-Americano Do CIGRÈ. Itaipu Binacional, “Fifteenth Regional Ibero-American Regional CIGRÈ, vol. XV, 1–26. Foz do Iguaçu: XV ERIAC, 2013.Google Scholar

  • [46]

    Illias HA, Chen G, Lewin PL. Partial discharge behavior within a spherical cavity in a solid dielectric material as a function of frequency and amplitude of the applied voltage. IEEE Trans Dielectr Electr Insul. 2011;18(2):432–43.CrossrefGoogle Scholar

  • [47]

    Isaac Kwabena K. Partial discharge evaluation of a high voltage transformerDissertation. Vanderbijlpark: Vaal University of Technology, Department: Power Engineering Faculty of Engineering and Technology, 2015.Google Scholar

  • [48]

    Institute of Electrical and Electronics Engineers (IEEE). . C57.143-2012 - IEEE Guide for Application for Monitoring Equipment to Liquid-Immersed Transformers and Components 2012978-0-7381-8027-4.Google Scholar

  • [49]

    Thayoob YH, Ahmed SK, Piau CC, Yu C, Yogendra P. Characterization of phase resolved partial discharge waveforms from instrument transformer using statistical signal processing technique. 2015 IEEE International Conference on Signal and Image Processing Applications (ICSIPA). 2015;Civ:355–60. DOI: CrossrefGoogle Scholar

  • [50]

    Azcarraga CG, Garcia-Colon VR, Nava A. On-site testing of instrument transformers. Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP. 2006;39–42. DOI: CrossrefGoogle Scholar

  • [51]

    OMICRON. MPD 600 - high-end measurement and analysis system for partial discharge. Manual. 2014.Google Scholar

  • [52]

    Raymond WJK, Illias HA, Bakar AHA, Mokhlis H. Partial discharge classifications: review of recent progress. Measurement. 2015a. DOI: CrossrefGoogle Scholar

  • [53]

    Renforth L. On-line partial discharge (OLPD) monitoring of complete high voltage (HV) networks in the oil & gas industry. In: 2014 IEEE Petroleum and Chemical Industry Conference - Brasil (PCIC Brasil). Rio de Janeiro; 2014: 14–23.Google Scholar

  • [54]

    Hernandez-Mejia JC, Perkel J. CHAPTER 8: Partial Discharge (PD) HV and EHV Power Cable Systems. Cable Diagnostic Focused Initiative (CDFI), Phase II ed. NEETRAC. Georgia Tech Research Corporation, 2016 February.Google Scholar

  • [55]

    Kim S-Y, Park S-M, Byun S-Y, Chin S-H. Partial discharge diagnosis for a generator potential transformer based on epoxy insulators including voids. J Int Counc Electrical Eng. 2013;3(2):174–78.CrossrefGoogle Scholar

  • [56]

    Kwang-Seok J, Park D-W, Cheon S-G, Seo D-H, Kil. G-S. Partial discharge detection by a capacitive probe in a cast-resin transformer. In: 9th WSEAS Int. Conference on Instrumentation, Measurement, Circuits and Systems. WSEAS, 2010: 98–101.Google Scholar

  • [57]

    Florkowski M. Observations of echo phenomena acquired from partial discharge measurements in voids. IEEE International Conference on High Voltage Engineering and Application (ICHVE). 2016;2–5. DOI: CrossrefGoogle Scholar

  • [58]

    Nattrass DA. Partial discharge measurement and interpretation. IEEE Electrical Insulation Magazine. 1988;4(3):10–23.CrossrefGoogle Scholar

  • [59]

    Gulski E. Digital analysis of partial discharges. IEEE Trans Dielectr Electr Insul. 1995;2(5):822–37.CrossrefGoogle Scholar

  • [60]

    Illias H, Yuan TS, Halim A, Bakar A, Chen G, Lewin PL. Partial discharge patterns in high voltage insulation. 2012b;December:2–5.Google Scholar

  • [61]

    Talib MA, Bakar ASA, Gobi Kannan S. Condition assessment of high voltage instrument transformer using partial discharge analysis. Jurnal Teknologi. 2013;4:37–41.Google Scholar

  • [62]

    Kuffel E, Zaengl WS, Kuffel J. High voltage engineering - fundamentals. Newnes, 2nd ed. Butterworth-Heinemann; 2000. DOI: .CrossrefGoogle Scholar

  • [63]

    Gulski E. Digital analysis of partial discharges. IEEE Trans Dielectr Electri Insul. 1995;7(4):822–37.Google Scholar

  • [64]

    ABNT. ABNT NBR 6855: transformador de Potential Indutivo (‘Inductive Potential Transformer’). Associação Brasileira De Normas Técnicas (“Brazilian National Standards Organization”) 1992a;16.Google Scholar

  • [65]

    ABNT. ABNT NBR 6856: transformador de Corrente (‘Current Transformer’). Associação Brasileira De Normas Técnicas (“Brazilian National Standards Organization”) 1992b;22.Google Scholar

  • [66]

    Nafar M. Partial discharge behavior in solid insulation. Journal of Novel Applied Sciences. 2013;2013 JNAS(11):640–43.Google Scholar

  • [67]

    Gupta K, Yadav NK, Rattewal PK, Tech Scholar M, Murthal D. Partial discharge within a sherical cavity in solid dielectric material. Int Res J Eng Technol (IRJET). 2015;2(8):972–78.Google Scholar

  • [68]

    Kupershtokh AL, Stamatelatos CP, Agoris DP. Simulation of partial discharge activity in solid dielectrics under AC voltage. Tech Phys Lett. 2006;32(8):680–83.CrossrefGoogle Scholar

  • [69]

    Negm TS, Refaey M, Hossam-Eldin AA. Modeling and simulation of internal partial discharges in solid dielectrics under variable applied frequencies. Eighteenth International Middle East Power Systems Conference (MEPCON). 2016;2016:639–44.Google Scholar

  • [70]

    Yue K, Chen J, Ruan H, Qian C. Study on partial discharge model of solid insulator. IEEE International Conference on High Voltage Engineering and Application (ICHVE). 2016;2016:1–4.Google Scholar

  • [71]

    Satish L, Nazneen B. Wavelet-based denoising of partial discharge signals buried in excessive noise and interference. IEEE Trans Dielectr Electr Insul. 2003;10(2):354–67.CrossrefGoogle Scholar

  • [72]

    Pompili M, Mazzetti C, Bartnikas R. Phase relationship of PD pulses in dielectric liquids under ac conditions. IEEE Trans Dielectr Electr Insul. 2000;7(1):113–17.CrossrefGoogle Scholar

  • [73]

    Kraetge A, Hoek S, Rethmeier K, Krüger M, Winter P. Advanced noise suppression during PD measurements by real-time pulse- waveform analysis of PD pulses and pulse-shaped. Conference Record of the 2010 IEEE International Symposium on Electrical Insulation (ISEI). 2010. DOI: CrossrefGoogle Scholar

  • [74]

    Chen X, Bi M, Jiang T, Wang Y. An equivalent circuit model for partial discharge occuring in transformer oil bubbles. IEEE International Conference on High Voltage Engineering and Application (ICHVE). 2016;1:4.Google Scholar

  • [75]

    Cavallini A, Montanari GC, Ciani F. Analysis of partial discharge phenomena in paper-oil insulation systems as a basis for risk assessment evaluation. Dielectric Liquids, 2005. ICDL 2005. 2005 IEEE International Conference On. 2005;241–44. DOI: CrossrefGoogle Scholar

  • [76]

    Turner MG, Gulski E. Pattern recognition for partial discharge measurement. Haefely Test AG, Tettex Instruments Division (Website Technical Reference). 1998;1–18.Google Scholar

  • [77]

    Suzuki H, Endoh T. Pattern recognition of partial discharge in XLPE cables using a neural network. IEEE Trans Electr Insul. 1992;27(3):543–49.CrossrefGoogle Scholar

  • [78]

    Suwanasri T. Partial dischage and its detection. The sirindhorn international thai-german graduate school of engineering. Lecture Presentation (July) 2016.Google Scholar

  • [79]

    Raymond WJK, Illias HA, Bakar AHA, Mokhlis H. Partial discharge classifications: review of recent progress. Measurement 2015b;68 :Elsevier Ltd: 164–81. DOI: .CrossrefGoogle Scholar

  • [80]

    Independent Power Engineering Consultants (IPEC). High frequency current transformer - HFCT 140/100. Sensor Product Specification. 2013;2:1–2.Google Scholar

  • [81]

    ANATEL - Agência Nacional de Telecomunicações. Plan for the Assingment, Destination and Distribution of Frequencies (‘Plano de Atribuição, Destinação E Distribuição de Frequências’). National Teleccomunications Agency. 2016; A to N 2193(July):1–298.Google Scholar

  • [82]

    Jia Y, Wang L, Zhu Y. Partial discharge pattern recognition method based on variable predictive model-based class discriminate and partial least squares regression. IET Science, Meas Technol. 2016;10(7):737–44.CrossrefGoogle Scholar

  • [83]

    Hernandez G-C, Rodolfo V, Melchor RG, Hernández Valois ME. Procesamiento Digital de Imágenes Para La Clasificación En Línea de Patrones de Descargas Parciales En Equipo Eléctrico. IEEE Latin Am Trans. 2007;5(5):287–93.Google Scholar

  • [84]

    Müller A, Beltle M, Tenbohlen S. Automated PRPD pattern analysis using image recognition. Int J Electrical Eng Inform. 2012;4(3):483–94.CrossrefGoogle Scholar

  • [85]

    Liao R, Fernandess Y, Tavernier K, Irving MR. Recognition of partial discharge patterns. 2012 IEEE Power and Energy Society General Meeting. 2012;1–8. DOI: CrossrefGoogle Scholar

About the article

Received: 2017-08-07

Revised: 2018-01-01

Accepted: 2018-01-02

Published Online: 2018-01-18

Citation Information: International Journal of Emerging Electric Power Systems, Volume 19, Issue 1, 20170160, ISSN (Online) 1553-779X, DOI: https://doi.org/10.1515/ijeeps-2017-0160.

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