Frequency Response Testing of Zero-Sequence Current Transformers for Mining Ground Fault Protection Relays

• Autorzy: Kuliński Krzysztof , Heyduk Adam

Identyfikatory

DOI

10.24425/ijet.2020.134030

• Języki publikacji: EN

Abstrakty

EN

In Polish coal mining, medium voltage power distribution networks operate with an insulated neutral point. Zero-sequence current transformers are the basic sensors that generate input signals for earth-fault protection relays. In the literature, the problem of frequency response analysis of various types of current transformers has been examined many times, e.g. [1] [2], but not for zero-sequence current transformers so far. As part of the work, two types of zero-sequence current transformers in the range from 0.1 Hz to 100 kHz were tested. Both the change of the current ratio and the angular shift between the transformer secondary current and the total primary current were analyzed.

Słowa kluczowe

EN

zero-sequence current transformers; ground-fault protection relays; frequency response

• Wydawca: Polish Academy of Sciences, Committee of Electronics and Telecommunication
• Czasopismo: International Journal of Electronics and Telecommunications
• Rocznik: 2020
• Tom: Vol. 66, No. 4
• Strony: 701--705
• Opis fizyczny: Bibliogr. 6 poz., fot., rys., wykr.

Twórcy

autor

Kuliński Krzysztof

• Silesian University of Technology

autor

Heyduk Adam

• Silesian University of Technology

Bibliografia

• [1] S. Li and Y. Xue ”Simulation analysis of Arc grounding fault in non-solidly earthed network”, in IEEE Power & Energy Society General Meeting, Chicago, 2017.
• [2] J. Wiśniewski, E. Anderson and J. Karolak “Sensitivity of Power Station Auxiliary Network to the Possibility of Ferroresonance Occurrence” Acta Energetica, vol. 21 No.4, pp 171-177, 2014.
• [3] A. Cataliotti, D. Di Cara, and P.A. Di Franco, “Frequency response of Measurement Current Transformer” in I2MTC 2008 - IEEE International Instrumentation and Measurement Technology Conference Victoria, Vancouver Island, 2008.
• [4] A. Cataliotti, D. Di Cara, and P.A. Di Franco, “Characterization of Current Transformers in the Presence of Harmonic Distortion” in I2MTC 2008 - IEEE International Instrumentation and Measurement Technology Conference Victoria, Vancouver Island, 2008.
• [5] M. Kaczmarek and R. Nowicz, “Comparison of wide frequency metrological properties of inductive current transformers” Przegląd Elektrotechniczny (Electrical Review), vol. 88, pp. 63–65, Aug. 2012.
• [6] R. Schreiber and I. Sikorova, “Frequency Response Of Selected Current Transformers And Hall-Effect Current Sensors” in XXI IMEKO World Congress “Measurement in Research and Industry”, Prague, 2015, pp. 738-742.