Analisis Karakteristik Arus dan Tegangan pada Inisiasi Feroresonansi Transformator Tegangan Rendah
Abstract
Ferroresonance is an interaction phenomenon between non-linear inductance and capacitance that initiates abnormal waveform of current and voltage. This phenomenon is very sensitive to system parameter and initial condition. In this paper, ferroresonance initiation involved a basic circuit of series ferroresonance with variation of source voltage magnitude on a single phase low voltage transformer. The scheme of experiment was based on the case of transformer energizing. The trends of current and voltage waveform on the primary windings were investigated and transformed by using Fast Fourier Transform (FFT). The harmonics spectrum was then employed to identify the feroresonance mode and calculate the Total Harmonics Distortion (THD) of current and voltage. The experimental results showed that the higher source voltage magnitude caused the ferroresonance responses to be seen more clearly. It was indicated by the more distorted waveform, the higher odd harmonics frequency amplitude especially for 150 Hz, and the greater THD. Based on the harmonics spectrum and wave period, the ferroresonance responses were identified as fundamental mode. The effects of initial conditions, such as residual flux of transformer and capacitor charge, were also seen on the distorted wave peak during transient condition. In addition, the difference of waveform between normal and ferroresonance condition could be more easily observed on the voltage than the current. The waveforms of current and voltage during experiment had been verified by using simulation.
References
P. Ferraci, “Cahier technique no. 190: Ferroresonance”, Schneider Electric, Technical Report, hal. 1-28, 1998.
E. Price, “A Tutorial on Ferroresonance”, 40th Annual Western Protective Relay Conference, 2013, hal. 676-704.
S. V. Vonsovskii, Ferromagnetic Resonance: The Phenomenon of Resonant Absortion of a High-Frequency Magnetic Field in Ferromagnetic Substances, Oxford: Pergamon Express, 1966.
Z. Emin, B.A.T. Al Zahawi, D.W. Auckland, dan Y.K. Tong, “Ferroresonance in Electromagnetic Voltage Transformer: A Study Based on Nonlinear Dynamics”, IEE Proc-Gener. Transm. Distrib., Vol. 144, No. 4, hal. 383-387, 1997.
I.G.N.S. Hernanda, I.M.Y. Negara, A. Soeprijanto, Novandi, dan M. Wahyudi, “Ferroresonance Characteristics due to Lightning Strike on Capacitive Voltage Transformer”, International Review on Modelling and Simulations, Vol. 9, No. 4, hal. 306-311, 2016.
J.S.P. Sinuraya, I.M.Y. Negara, dan I.G.N.S. Hernanda, “Analysis of Capacitance Effect on Ferroresonance of Power System (in Indonesian)”, Skripsi, Electrical Engineering Dept., Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia, 2016.
A.H.A. Bakar, “Analysis of Lightning-caused Ferroresonance in Capacitor Voltage Transformer (CVT)”, Electrical Power and Energy System, vol. 33, Issue 9, hal. 1536-1541, 2011.
J. F. Piñeros, J. A. Vélez, dan D. Rodríguez, “Ferroresonance in a 115 kV Network due to a Single Line Fault”, International Conference on Power Systems Transients, 2015, hal. 1-7.
M. Sanaye-Pasand, R. Aghazadeh, dan H. Mohseni, “Ferroresonance Occurrence During Energization of Capacitive Voltage Substations”, IEEE Power Engineering Society General Meeting, 2003, hal. 601-606.
Tahir Cetin Akinci, Nazmi Ekren, Serhat Seker, dan Sezen Yildirim, “Continuous Wavelet Transform for Ferroresonance Phenomena in Electric Power Systems”, Electrical Power and Energy Systems, Vol. 44, Issue 1, hal. 403–409, 2013.
M. Graovac, R. Iravani, X. Wang, dan R.D. McTaggart, “Fast Ferroresonance Suppression of Coupling Capacitor Voltage Transformers”, IEEE Transactions on Power Delivery, Vol. 18, No. 1, hal. 158-163, 2003.
S.J. Huang dan C.H. Hsieh, “Relation Analysis for Ferroresonance of Bus Potential Transformer and Circuit Breaker Grading Capacitance”, Electrical Power and Energy Systems, Vol. 51, hal. 61–70, 2013.
P. S. Moses dan M. A. S. Masoum, “Modelling Ferroresonance in Asymmetric Three-Phase Power Transformer”, Australasian Universities Power Engineering Conference, 2009, hal. 1-6.
I.G.N.S. Hernanda, I.M.Y. Negara, A. Soeprijanto, D.A. Asfani, D. Fahmi, K. Andarini, dan M. Wahyudi, “Detection of Ferroresonance on Asymmetric Three Phase Transformer due to Capacitance Variation”, AUN/SEED-Net Regional Conference on Electrical and Electronics Engineering, 2017.
H. Abdi, S. Abbasi, dan M. Moradi, “Analyzing the Stochastic Behavior of Ferroresonance Initiation Regarding Initial Conditions and System Parameters”, Electrical Power and Energy Systems, Vol. 83, hal. 134–139, 2016.
K. Milicevic dan Z. Emin, “Impact of Initial Conditions on the Initiation of Ferroresonance”, Int. Journal of Electrical Power and Energy Systems, Vol. 31, Issue 4, hal. 146–152, 2009.
K. Pattanapakdee dan C. Banmongkol, “Failure of Riser Pole Arrester due to Station Service Transformer Ferroresonance”, International Conference on Power Systems Transients, 2007, hal. 1-5.
M. Roy dan C.K. Roy, “Experiments on Ferroresonance at Various Line Conditions and Its Damping”, Joint International Conference on Power System Technology and IEEE Power India Conference, 2008, hal. 1-8.
K. Milicevic, dan Z. Emin, “Initiation of Characteristic Ferroresonance States Based on Flux Reflection Model”, IEEE Transactions On Circuits and Systems II: Express Briefs, Vol. 60, No. 1, hal. 51-55, 2013.
F. A. Samman, R. Ahmad, dan M. Mustafa, “Perancangan, Simulasi dan Analisis Harmonisa Rangkaian Inverter Satu Fasa”, Jurnal Nasional Teknik Elektro dan Teknologi Informasi, Vol. 4, No. 1, hal. 62-70, Februari 2015.
© Jurnal Nasional Teknik Elektro dan Teknologi Informasi, under the terms of the Creative Commons Attribution-ShareAlike 4.0 International License.
1.png)
