Digital time-domain investigation of transient behaviour of coupling capacitor voltage transformer

Iravani, M.R.; Wang, X.; Polishchuk, I.; Ribeiro, João Paulo; Sarshar, A.

doi:10.1109/61.660947

Cited by 47 publications

(17 citation statements)

References 7 publications

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“…The CVT model considered in this article is from [26] (Appendix A), except that the FSC and intermediate transformer saturation characteristics are extracted from [27] with the operating point assumed from [26] (Appendix B). The electronic FSC considered here is resistance (R) in series with power electronic device [21,22], the damping resistance value of which is to be estimated.…”

Section: Transfer Function Of Cvt Modelmentioning

confidence: 99%

Estimation of Electronic Suppression Circuit Resistance for Protective Relaying Applications

Venkatesh

2015

Electric Power Components and Systems

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Section: Transfer Function Of Cvt Modelmentioning

confidence: 99%

Estimation of Electronic Suppression Circuit Resistance for Protective Relaying Applications

Venkatesh

2015

Electric Power Components and Systems

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“…However, due to the nonlinearity of the iron cores of compensating reactor and step-down transformer, its output waveform deviates from the input waveform during transients. The phenomenon of ferroresonance is a particular concern during transients, and can cause noticeable deviation of CCVT response from the actual input waveform [1,2,3].…”

Section: Introductionmentioning

confidence: 99%

Investigation of performance of ferroresonance suppressing circuits in coupling capacitor voltage transformers

Shahabi

Mirzaei

Gholami³

et al. 2009

2009 4th IEEE Conference on Industrial Electronics and Applications

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In order to restrain ferroresonance in coupling capacitor voltage transformers (CCVT), three kinds of ferroresonance suppression circuits (FSCs): the resonant type, the fast-saturation reactor type and electronic type which are connected to secondary side of CCVTs, are proposed in this paper. Frequency domain analyses, for voltage ratio magnitude, are carried out for CCVTs to obtain preferable FSC. Furthermore, using surge suppressors such as metal oxide varistors (MOV) to improve the performance of the FSCs is investigated. Time domain simulations demonstrate that ferroresonance can be cleared in few cycles in presence of FSCs. The Electromagnetic Transients Program (EMTP) is used for modeling and fine-tuning the FSCs.

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Section: Introductionmentioning

confidence: 99%

Mitigating ferroresonance in coupling capacitor voltage transformers with ferroresonance suppressing circuits

et al. 2009

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In order to restrain ferroresonance in coupling capacitor voltage transformers (CCVT), two kinds of ferroresonance suppression circuits (FSCs) , are proposed in this paper: the resonant type, the fastsaturation reactor type which are connected to secondary side of CCVTs. Frequency domain analyses, for voltage ratio magnitude, are carried out for CCVTs to obtain preferable FSC. Furthermore, using surge suppressors such as metal oxide varistors (MOV) to improve the performance of the FSCs is investigated. Time domain simulations demonstrate that ferroresonance can be cleared in few cycles in presence of FSCs. The Electromagnetic Transients Program (EMTP) is used for modeling and fine-tuning the FSCs.

show abstract

Digital time-domain investigation of transient behaviour of coupling capacitor voltage transformer

Cited by 47 publications

References 7 publications

Estimation of Electronic Suppression Circuit Resistance for Protective Relaying Applications

Estimation of Electronic Suppression Circuit Resistance for Protective Relaying Applications

Investigation of performance of ferroresonance suppressing circuits in coupling capacitor voltage transformers

Mitigating ferroresonance in coupling capacitor voltage transformers with ferroresonance suppressing circuits

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