Problems of varistor quality assessment during exploitation

• Autorzy: Smulko J. , Olesz M. , Hasse L. , Kaczmarek L. , Lentka G.
• Języki publikacji: EN

Abstrakty

EN

Varistors are commonly used elements which protect power supply networks against high-voltage surges or lightning. Therefore, quality and endurance of these elements is important to avoid losses when an expensive laboratory equipment would not be protected from random overvoltages. Additionally, excessive leakage currents generate serious costs due to high energy consumption. The paper presents shortly properties of varistors that comprized different ZnO grain types and can have various quality which changes continuously during exploitation (due to exposition to overheating and overvoltage pulses). Therefore, it is important to monitor varistors during their ageing (causing changes within their microstructures). A few methods of varistor property diagnosis were considered and compared with the methods currently applied in laboratory or industry applications. A new measurement (diagnostic) system that can monitor varistors during ageing and can be widely applied in power networks is presented. The proposed system fulfills requirements of the industrial customers which demand various methods for power line protection. The proposed system can be simply developed into a more advanced wireless diagnostic system of long power supply lines.

Słowa kluczowe

EN

varistors; quality; ageing

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2012
• Tom: Vol. 19, nr 2
• Strony: 395--404
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr.

Twórcy

autor

Smulko J.

autor

Olesz M.

autor

Hasse L.

autor

Kaczmarek L.

autor

Lentka G.

• Gdansk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Metrology and Optoelectronics, G. Narutowicza 11/12, 80-233 Gdansk, Poland,

Bibliografia

• [1] Jaworski, M. (1999). Endurance prediction of metal-oxide ZnO varistors from current production, Ph. D. Thesis. Wroclaw University of Technology. (in Polish)
• [2] Sedlak, P., Tofel, P., Sedlakova, V., Majzner, J., Sikula, J., Hasse, L. (2011). Ultrasonic spectroscopy of silicon single crystal. Metrol. Meas. Syst., 18(4), 621-630.
• [3] Lira, J., Macedo, E., Costa, E., Freire, R., Luciano, B. (2007). ZnO surge arresters diagnosis using microcontroller. In Instr. & Meas. Technology Conference - IMTC 2007, Warsaw, Poland, 1-6.
• [4] Christodoulou, C.A., Avgerinos, M.V., Ekonomou, L., Gonos, I.F., Stathopulos, I.A. (2009). Measurement of the resistive leakage current in surge arresters under artif cial rain test and impulse voltage subjection. IET Science, Measurement and Technology, 3(3), 256-262.
• [5] Abdul-Malek, Z., Noorden, Z.A., Yusoff, N. (2010). The interpretation of return voltage curve of ZnO varistor based on a new diagnostic parameter. In UPEC2010.
• [6] Sikula, J., Schauer, P., Vasina, P., Sikulova, M., Koktavy, B., Chobola, Z., Navarova, H., Pazdera, L. (1994). 1/f Noise in metallic thin films. In AIP Conf. Proc. 371, 59-64, doi: http://dx.doi.org/10.1063/1.50886.
• [7] Furgał, J. (2009). Analysis of voltage-current dependencies of metal oxide surge arresters in different exploitation conditions. Electrotechnical Review, 85(6), 25-28.
• [8] Heinrich, C., Hinrichsen, V. (2001). Diagnostics and monitoring of metal-oxide surge arresters in highvoltage networks-comparison of existing and newly developed procedures. IEEE Transactions on Power Delivery, 16(1), 138-143.
• [9] Furgal, J. (2009). Analysis of overvoltages in windings of power transformers protected by use of metal oxide surge arresters. European T. on Electrical Power, 19(3), 400-410.
• [10] LifeCheck® SPD Test Device DRC LC M3+, (2011), DEHN + SÖHNE GmbH + Co. Neumarkt, Germany, www.dehn.de. (2012).
• [11] Smulko, J., Hasse, L., Kaczmarek, L. (2011). Method and system for varistor degradation assessment. Polish patent disclosure, No. P.396244. (in Polish).
• [12] Abdul-Malek, Z., Aulia, N. (2008). Portable device to extract resistive component of the metal oxide surge arrester leakage current. In Australasian Univ. Power Eng. Conf. (AUPEC'08), P245, 1-5.
• [13] Schillert, H., Schubert, M., Steinfeld, K. (2008). Device for monitoring the leakage current of a surge arrester. US patent No. 7336193B2.
• [14] Texas Instruments mixed signal microcontroller, http://www.ti.com/lit/ds/slas504f/slas504f.pdf. (2012).
• [15] Scholl, G., Korden, C., Riha, E., Ruppel, C.C.W., Wolff, U., Riha, G., Reindl, L., Weigel, R. (2003). SAW-based radio sensor systems for short-range applications. IEEE Microwave Magazine, 4(4), 68-76.
• [16] Atmel, ATtiny13, ATtiny13V, 8-bit Microcontroller with 1K Bytes In-System Programmable Flash, Rev. 2535H-AVR-10/07. (2011).