Pengaruh Front Time terhadap Tegangan Residu Arester ZnO 18 kV
Abstract
Electrical system in Indonesia has two main parts that cannot be separated, the source (provider) and the load (end user). Various attempts have been taken to comply with the load requirement, one of them is by creating a reliable system. The reliability of the system can be achieved by protecting component system from power disturbances, e.g., overvoltage (surge). The characteristic of an surge is hard to define. Overvoltage that travels in the transmission line is affected by the line impedance and may cause an alteration in the characteristics of the resulting waves. One of the alterations that may appear is front time value. This research presents a laboratory testing of an 18 kV Zinc- Oxide (ZnO) arrester with various front time values in the ra ngeof 0-30 μs. The various front time values can affect residual voltage with the average value which is equal to 39972.25 V for input voltage (Vpi) 60 kV and 42150 V for 100 kV. The increment of front time makes the value of residual voltage decrease, but the descent is not significant. The change of front time also can affect the residual voltage waveform as output of 18 kV ZnO arrester.
References
T. Haryono and K. T. Sirait, “Watak perlindungan blok ZnO yang digunakan pada arester 20 kV terhadap sambaran arus impuls berulang,” Universitas Gadjah Mada, 2011.
Y. Miyakawa, T. Sakoda, M. Otsubo, and M. Ikuta, “Influence of temperature variation on characteristics of ZnO elements,” in International Symposium on Electrical Insulating Materials, 2008. (ISEIM 2008), 2008, pp. 119–122.
D. B. Miller, H. B. Fan, and P. R. Barnes, “The response of MOV and SiC arresters to steep-front longer duration current pulses,” IEEE Transactions on Power Delivery, vol. 6, no. 2, pp. 666–671, 1991.
K. Kannus and K. Lahti, “Evaluation of the operational condition and reliability of surge arresters used on medium voltage networks,” IEEE Transactions on Power Delivery, vol. 20, no. 2, pp. 745–750, 2005.
G. L. Goedde, L. A. Kojovic, and J. J. Woodworth, “Surge arrester characteristics that provide reliable overvoltage protection in distribution and low-voltage systems,” in IEEE Power Engineering Society Summer Meeting, 2000, 2000, vol. 4, pp. 2375–2380 vol. 4.
A. Bayadi, “Parameter identification of ZnO surge arrester models based on genetic algorithms,” Electric Power Systems Research, vol. 78, no. 7, pp. 1204–1209, Jul. 2008.
D. W. Lenk, “Application Considerations for Gapped Silicon-Carbide Arresters Currently Installed on Utility High Voltage Installations,” in Transmission and Distribution Conference and Exhibition, 2005/2006 IEEE PES, 2006, pp. 613–620.
C. A. Christodoulou, F. A. Assimakopoulou, I. F. Gonos, and I. A. Stathopulos, “Simulation of metal oxide surge arresters behavior,” in IEEE Power Electronics Specialists Conference, 2008. PESC 2008, 2008, pp. 1862–1866.
C. L. Wadhwa, High voltage engineering. Tunbridge Wells, UK: New Age Science, 2010.
“IEEE Standard for High-Voltage Testing Techniques,” IEEE Std 4- 2013 (Revision of IEEE Std 4-1995), pp. 1–213, 2013.
© Jurnal Nasional Teknik Elektro dan Teknologi Informasi, under the terms of the Creative Commons Attribution-ShareAlike 4.0 International License.
1.png)
