Open AccessModeling frequency response of transformer winding to investigate the influence of RLC
Author(s) -
Salem Mgammal Al-Ameri,
Mohd Fairouz Mohd Yousof,
Norhafiz Azis,
Sonanvane Avinash,
Mohd Aizam Talib,
Ali Ahmed Salem
Publication year - 2019
Publication title -
indonesian journal of electrical engineering and computer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.241
H-Index - 17
eISSN - 2502-4760
pISSN - 2502-4752
DOI - 10.11591/ijeecs.v14.i1.pp219-229
Subject(s) - rlc circuit , leakage inductance , transformer , frequency response , inductance , autotransformer , equivalent circuit , transformer types , capacitance , engineering , control theory (sociology) , electronic engineering , electrical engineering , distribution transformer , voltage , computer science , capacitor , physics , control (management) , electrode , quantum mechanics , artificial intelligence
Frequency response measurements are used for power transformer winding failures detection. The variation between frequency responses indicate mechanical changes in the transformer winding. One method to investigate winding failures in transformer is to develop a reliable circuit model which can simulate the frequency response of an actual winding. The main reason to use the model is because it is expensive to create damages on an actual winding. This paper proposes n-stages circuit ladder network to simulate the response of a winding which has unique design. It presents a new technique to calculate the resistance, inductance and capacitance of the winding. Then, the relationship between the RLC parameters and the frequency response is studied. The winding chosen in this investigation is a single phase 33kV transformer winding. The simulated frequency response was compared with the measured response to verify the proposed model. The model can give a comprehensive understanding about the effect of RLC parameters on the frequency response.