Study on transformer tank vibration characteristics in the field and its application

• Autorzy: Shengchang J. , Lingyu Z. , Yanming L.

Warianty tytułu

PL

Analiza sygnału wibracji transformatora i jej wykorzystanie

• Języki publikacji: EN

Abstrakty

EN

Vibration signal analysis method is one of effective methods to monitor the condition of transformer windings and core. In this paper, the multi-channels vibration measurement system is set up and the vibration signals on the oil-tank surface of running transformer in the field are measured. The influences of transformer type and sensor positions on the measured vibration signals are analyzed. The results show that, the same type of transformer' oil tank vibration signals have almost same characteristics, and the vibration signals measured on a transformer tank surface have similar characteristics only at the same position of phase "A" (or "a") and "C" (or "c"). Moreover, the attachment position of each sensor should be marked on the tank surface with paint, which is the reference position in the next measurement. It was recommended that the permissible error in the position of the sensor is within 5 cm. The vibration characteristics acquired in the field are applied to diagnose a transformer suffered three-phase short circuit, and the results presented show the accuracy and efficiency of the acquired transformer tank vibration characteristics.

PL

Analiza sygnału wibracji jest jedną z metod monitorowania stanu uzwojeń. i rdzenia transformatora. W artykule zastosowano wielokanałowy analizator wibracji do badania pracującego transformatora. Analizowano wpływ pozycji czujnika dla różnych typów transformatora. Stwierdzono, że sygnały wibracji miały podobny charakter dla jednego rodzaju transformatora i że sygnały są podobne dla tej samej pozycji czujnika. Rekomendowane jest więc zaznaczanie pozycji czujnika (z tolerancją. 5 cm) dla otrzymania powtarzalności pomiarów. Otrzymane sygnały wibracji mogą być wtedy wykorzystywane do diagnostyki.

Słowa kluczowe

EN

transformer; oil tank; vibration characteristics; windings and core

PL

transformator; wibracje; diagnostyka

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2011
• Tom: R. 87, nr 2
• Strony: 205--211
• Opis fizyczny: Bibliogr. 19 poz., rys.

Twórcy

autor

Shengchang J.

autor

Lingyu Z.

autor

Yanming L.

• Xianning west road 28#, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, ShannXi, Privince, Republic of China,

Bibliografia

• [1] V. Sokolov, Z. Berler, V. Rashkes, "Effective Methods of Assessment of Insulation System Conditions in Power Transformers", in Electrical Insulation Conference EIC/EMCW-99, Cincinnati, OH, October 26-28, 1999.
• [2] G. V. Antipov, V. Y. Gorshunov, V. N. Malinovskii, A. P. Sklyarov, and N. N. Khublarov, "System for diagnosing the mechanical condition of the windings of high-power double-wound transformers", Meas. Techn., vol. 39, no. 9, pp. 93–97, 1996.
• [3] J. A. Lapworth and T. J. Noonan, "Mechanical condition assessment of power transformers using frequency response analysis", presented at Proc. Annu. Int. Conf. Doble Clients.
• [4] A. Babare, F. Cannata, G. Caprio, S. Sacchetti, and G. Zafferrani, "Ennel-diagnossis of on- and off-line large transformers", in Proc. Cigré Symp., Berlin, Germany, pp. 110–04, 1993.
• [5] T. Leibfried and K. Feser, "Monitoring of power transformers using the transfer function method", IEEE Transactions on Power Delivery, vol. 14, no. 4, pp. 1333–1339, Oct. 1999.
• [6] S. Birlasekaran and F. Fetherston, "Off/On-Line FRA condition monitoring technique for power transformer", IEEE Power Eng. Rev., vol. 19, pp. 54–56, Aug. 1999.
• [7] J.C. Lavalle, "Failure Detection in Transformer Using Vibrational Analysis", MS dissertation, MIT, Cambridge, MA, USA, 1986.
• [8] S.H Lee, "Modeling of Winding Vibration Amplitude for Diagnosis of Power Transformer", MS dissertation, Soongsil University, 1994.
• [9] C. Booth, J. R. McDonald, and R. Aresi, “The use of neural networks for the estimation and classification of vibration behavior in power transformers,” in Proc. Amer. Power Conf., 1995, pp. 1132–1135.
• [10] Belén García, Juan Carlos Burgos, and Ángel Matías Alonso, "Transformer Tank Vibration Modeling as a Method of Detecting Winding Deformations—Part I: Theoretical Foundation", IEEE Transactions on Power Delivery, Vol.21, No.1, pp. 157-163, 2006.
• [11] M.A Sanz-Bobi, A. Garcia-Cerrada et al, "Experiences Learned from the On-line Internal Monitoring of the Behavior of a Transformer", in Electric Machines and Drives Conference Record, 1997. IEEE International, TC3/11.1-TC3/11.3, 1997.
• [12] Masato Mizokami, Masao Yabumoto, Yasuo Okazaki, "Vibration Analysis of a 3-Phase Model Transformer Core", Electrical Engineering in Japan, Vol.119, No.1, pp. 1-8, 1997.
• [13] Chan-Soo Chung, Chi-Hyoung You, and et al, "Fault Discrimination of Power Transformers Using Vibration Signal Analysis", in Integrating Dynamics Condition Monitoring and Controlling Conference 21st Century, Rotterdam, Holand, pp.523-529, 1999.
• [14] Cipriano Bartoletti, Maurizio Desiderio, Danilo Di Carlo, et at, "Vibro-Acoustic Techniques to Diagnose Power Transformers", IEEE Transactions on Power Delivery, Vol.19, No.1, pp. 221-229, 2004.
• [15] Ji Shengchang, Cheng Jin, Li Yanming, "Research on Vibration Characteristics of Windings and Core of Oil –filled Transformer", Journal of Xi'an Jiaotong University，Vol.39, No.6, pp. 616~619, 2005
• [16] Belén García, Juan Carlos Burgos, and Ángel Matías Alonso, "Transformer Tank Vibration Modeling as a Method of Detecting Winding Deformations—Part II: Experimental Verification ", IEEE Transactions on Power Delivery, Vol.21, No.1, pp. 164-169, 2006.
• [17] Ji Shengchang, Luo Yongfen, Li Yanming, "Research on Extraction Technique of Transformer Core Fundamental Frequency Vibration Based on OLCM", IEEE Transactions on Power Delivery, Vol.21, No.1, pp. 1981-1988, 2006
• [18] Mechefske CK, "Correlating Power Transformer Tank Vibration to Winding Looseness", Insight—J. Non Destruct. Test. Cond. Monitor., Vol. 37, no. 8, pp. 599-604, 1995
• [19] Z. Berler, A. Golubev, V. Rusov, and et al, "Vibro-Acoustic Method of Transformer Clamping Pressure Monitoring", in Conference Record of the 2000 IEEE International Symposium on Electrical Insulation, Anaheim, CA USA, April 2-5, pp.263~266, 2000.