New solution for detecting single phase-to-ground faults in resonant-grounded systems

dc.contributor.affiliationProtecta Co. Ltd.
dc.contributor.affiliationProtecta Co. Ltd.
dc.contributor.affiliationProtecta Co. Ltd.
dc.contributor.affiliationProtecta Co. Ltd.
dc.contributor.authorPócsi, Gergely
dc.contributor.authorRadvánszki, Ferenc
dc.contributor.authorWeingart, Dr. Ferenc
dc.contributor.authorCsipke, György
dc.contributor.countryHungary
dc.contributor.countryHungary
dc.contributor.countryHungary
dc.contributor.countryHungary
dc.contributor.detailedauthorPócsi, Gergely, Protecta Co. Ltd., Hungary
dc.contributor.detailedauthorRadvánszki, Ferenc, Protecta Co. Ltd., Hungary
dc.contributor.detailedauthorWeingart, Dr. Ferenc, Protecta Co. Ltd., Hungary
dc.contributor.detailedauthorCsipke, György, Protecta Co. Ltd., Hungary
dc.date.accessioned2019-07-24T12:37:15Z
dc.date.available2019-07-24T12:37:15Z
dc.date.conferencedate3-6 June 2019
dc.date.issued2019-06-03
dc.description.abstractThe compensation of the earth fault current in resonant-grounded systems is an effective method to increase the chance of clearing the most frequently occurring faults, the single phase-to-ground faults. The closer the value of the inductive reactance of the Petersen coil to the value of the zero-sequence capacitive reactance of the network, the higher the chance for the arc suppression. As a consequence of this tuned near-resonance state, the earth fault current is negligibly small compared to the load current. Therefore, it presents real challenges for the protection devices to detect this type of fault, as the zero-sequence fault current is too small, and the positive sequence impedance cannot be measured correctly between the fault location and the protection device.This paper gives a brief overview of the different earth fault protection methods used on resonant-grounded systems all over the world and introduces a new method for earth fault detection. It also demonstrates the results of its successful real-life application.
dc.description.conferencelocationMadrid, Spain
dc.description.conferencenameCIRED 2019
dc.description.openaccessYes
dc.description.peerreviewedYes
dc.description.sessionOperation, control and protection
dc.description.sessionidSession 3
dc.identifier.isbn978-2-9602415-0-1
dc.identifier.issn2032-9644
dc.identifier.urihttps://cired-repository.org/handle/20.500.12455/99
dc.identifier.urihttp://dx.doi.org/10.34890/193
dc.language.isoen
dc.publisherAIM
dc.relation.ispartProc. of the 25th International Conference on Electricity Distribution (CIRED 2019)
dc.relation.ispartofseriesCIRED Conference Proceedings
dc.titleNew solution for detecting single phase-to-ground faults in resonant-grounded systems
dc.title.number661
dc.typeConference Proceedings
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