Characterization of ferroresonant modes in HV substation with CB grading capacitors
Val Escudero, M., Dudurych, I. and Redfern, M. A., 2007. Characterization of ferroresonant modes in HV substation with CB grading capacitors. Electric Power Systems Research, 77 (11), pp. 1506-1513.
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This paper reports a ferroresonant experience involving inductive voltage transformers (VT's) in a 400kV substation equipped with circuit breaker grading capacitors. Field measurements are presented and compared with ATP/EMTP simulation results, showing very good agreement. A parametric analysis has been performed to investigate the effect of the substation capacitance on the occurrence of ferroresonance. Fundamental frequency and sub-harmonic ferroresonant modes have been identified and compiled in a bifurcation diagram. The methodology presented can be used to create risk maps of avoidable switching operations or substation configurations. (C) 2006 Elsevier B.V. All rights reserved.
|Creators||Val Escudero, M., Dudurych, I. and Redfern, M. A.|
|Departments||Faculty of Engineering & Design > Electronic & Electrical Engineering|
|Additional Information||ID number: ISI:000248938300009|
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