Analysis of recorded transients on 765kV lines with shunt reactors

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dc.contributor.authorZivanovic, R.
dc.contributor.conferenceIEEE PowerTech (2005 : St. Petersburg, Russia)
dc.date.issued2005
dc.description© Copyright 2005 IEEE
dc.description.abstractShunt reactors are installed on the long lines to reduce overvoltage. When the compensated line is opened to clear a fault, we find that the open-phase voltage does not disappear. A transient voltage waveform with a resonant frequency between 35 Hz and 45 Hz, can be seen which slowly reduces in magnitude. This transient phenomenon depends on the line parameters and the level of compensation. During the auto reclosing stage, the transient voltage will superimpose on the source voltage creating dangerous overvoltages along the line and on the shunt reactors. A controlled closing technique is one possible solution to the overvoltage problem. To do control closing it is necessary to analyze the voltage over the switching contacts, to predict voltage shape and to identify an optimal switching instant. In this paper very accurate algorithm for voltage signal modelling is presented. The paper concludes with presentation of the representative practical results obtained in modelling and predicting a voltage signal recorded on a 765 kV line with shunt reactors. The results show that the novel technique gives accurate signal modelling and prediction under practical conditions.
dc.identifier.citationProceedings of IEEE PowerTech’2005, St.Petersburg, Russia, June 27-30, 2005 / pp. 1-4
dc.identifier.doi10.1109/PTC.2005.4524492
dc.identifier.isbn9781424418749
dc.identifier.urihttp://hdl.handle.net/2440/40418
dc.language.isoen
dc.publisherIEEE
dc.publisher.placeOnline
dc.source.urihttps://doi.org/10.1109/ptc.2005.4524492
dc.titleAnalysis of recorded transients on 765kV lines with shunt reactors
dc.typeConference paper
pubs.publication-statusPublished

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