Power Transformers Condition Assessment of GI Simangkuk Switchyard Sumatra Interconnection in Indonesia

Abstract:

The electricity needs of Indonesia grow an average 10% each year. Therefore, PLN (Perusahaan Listrik Negara) as the only power utility business in Indonesia, has a master plan to develop new power plant, switchyard and transmission system. One of the new developed systems is GI Simangkuk switchyard of Sumatra interconnection system. This switchyard is prepared to improve reliability of Sumatra interconnection system. This site utilizes power transformers of 275 kV. Power transformer is one of the main equipments in power systems. When a failure occurs in a power transformer, the whole system will be failed and the electricity could not be delivered to customer. Each utility has to assure their reliability in order to maintain electrical power system stability by assessing transformer condition. There is an increasing need for better diagnostic and monitoring tools to assess the condition of transformers. Modern power transformers are equipped with software and computer system control. The reliability of this computer systems are needed to evaluate for assurance of system safety. This paper describes the need of assessment and maintenance of power transformers such as outages effect of failures, high cost of maintenance and replacement, increase of world demand, aging effect and used of old transformer, and computer protection system failure. Monitoring and diagnostic methods of transformers assessment have been developing in recently years. They can be separated into traditional and non-traditional methods that have been used in many years and are still in research stage. In this paper we propose a new approach in order to assess power transformer condition by using fault tree analysis.

• Periodical: Advanced Materials Research (Volumes 452-453)
• Pages: 975-979
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.452-453.975
• Online since: January 2012
• Authors: Josep Franklin Sihite, Takehisa Kohda
• Keywords: Condition Assessment, Fault Tree Analysis (FTA), Maintenance, Power Transformer, Reliability

References

[1] M. Wang, A.J. Vandermaar, K.D. Srivastava, Review of condition assessment of power transformers in services, IEEE Electrical Insulation Magazine, Vol. 18. (2002).

DOI: 10.1109/mei.2002.1161455

[2] information on http/ www. pln. co. id.

[3] C.S. Zveren, D. King, K. Mursitojati, Power sector reform in Indonesia, what should be policy for the state owned power company (PLN), Universities Power Engineering Conference , UPEC , 43rd International., IEEE conference. (2008).

DOI: 10.1109/upec.2008.4651688

[4] Center of Data and Information on Energy and Mineral Resources : Handbook of Indonesia's Energy Economic Statistics. CDI-EMR, Jakarta, Indonesia. (2007).

[5] State-Owned Electricity Utility, PLN (Perusahaan Listrik Negara) : Master plan electricity business of PT. PLN ( Persero) 2009-2018. [in Bahasa Indonesia], Jakarta. (2009).

DOI: 10.15676/ijeei.2021.13.3.6

[6] Information on http: / www. esdm. go. id.

[7] Asahan I hydro Electric Power Plant : Technical manual. (2006).

[8] US Department of the interior bureau of reclamation: Transformer Maintenance, facilities instructions, standards, and techniques. FIST Volume 3-30", Denver, Colorado, (2000).

[9] U.S. Army Corps of Engineers : Transformer Condition Assessment, Hydro Plant Risk Assessment Guide. Hydro Quebec, and Bonneville Power Administration. (2006).

[10] M. Fischer, S. Tenbohlen, M. Schafer, R. Haug, Determining power transformers sequence of maintenance and repair in power grids, IEEE International Symposium on. (2010).

DOI: 10.1109/elinsl.2010.5549785

[11] I.A. Metwally, Failures, monitoring, and new trends of power transformers, IEEE Potentials, IEEE, VOl. 30, pp.36-43. (2011).

DOI: 10.1109/mpot.2011.940233

[12] L.M. Geldenhuis, Power transformer life management, 18th International Conference on Electricity Distribution, Turin , 6-9 June (2005).

[13] IEEE Standard Requirements for Liquid-Immersed Distribution Substation Transformers. IEEE Std C57. 12. 36. (2007).

DOI: 10.1109/ieeestd.2017.8016715

[14] Y. Oue, T. Koyabashi, Life management of transformers in Japan, IEEE, Transmission and Distribution Conference and Exhibition, Asia Pasific. (2002).

[15] M. Darveniza, et al., Investigations into effective methods for assessing the condition of insulation in aged power transformers, IEEE Trans. Power Delivery, Vol. 13, No. 4, pp.1214-1223. (1998).

DOI: 10.1109/61.714487

[16] T. Kohda, Accident analysis of protective systems based on system control concepts, Reliability and Maintainability Symposium. (2007).

[17] M. Stamatelatos, W. Vesely, in : Fault Tree Handbook with Aerospace Application. NASA Office of Safety and Mission Assurance, Washington, DC. ( 2002).