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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-article-BPW8-0017-0005

Czasopismo

Przegląd Elektrotechniczny

Tytuł artykułu

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

Autorzy Shengchang, J.  Lingyu, Z.  Yanming, L. 
Treść / Zawartość http://pe.org.pl/
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
PL transformator   wibracje   diagnostyka  
EN transformer   oil tank   vibration characteristics   windings and core  
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, jsc@mail.xjtu.edu.cn
Bibliografia
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[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
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