Frequency Response of a Real Cable Network and its Impact on Field PD Measurements

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dc.contributor.affiliationHaefely Test AG / TU Delft
dc.contributor.affiliationHaefely Test AG
dc.contributor.affiliationOrmazabal Corporate Technology
dc.contributor.affiliationOrmazabal Corporate Technology
dc.contributor.authorAbdul Madhar, Saliha
dc.contributor.authorMraz, Petr
dc.contributor.authorBarrios Pereira, Sonia Raquel
dc.contributor.authorAkroud, Nabil
dc.contributor.countrySwitzerland
dc.contributor.countrySwitzerland
dc.contributor.countrySpain
dc.contributor.countrySpain
dc.contributor.detailedauthorAbdul Madhar, Saliha, Haefely Test AG / TU Delft, Switzerland
dc.contributor.detailedauthorMraz, Petr, Haefely Test AG, Switzerland
dc.contributor.detailedauthorBarrios Pereira, Sonia Raquel, Ormazabal Corporate Technology, Spain
dc.contributor.detailedauthorAkroud, Nabil , Ormazabal Corporate Technology, Spain
dc.date.accessioned2019-07-24T12:41:02Z
dc.date.available2019-07-24T12:41:02Z
dc.date.conferencedate3-6 June 2019
dc.date.issued2019-06-03
dc.description.abstractAsset condition monitoring through Partial Discharge (PD) measurements is widely used for preemptive maintenance especially when it comes to cable networks. This is because the physical structure of the cable is a coaxial waveguide that poses as a one dimensional medium for the discharge pulse propagation; which in turn provides the added advantage of pulse/defect localization. Several monitoring systems rely on measurements in the High Frequency (HF) band using wideband sensors when it comes to PD monitoring. However, they fail to realize the radical attenuation of the higher frequencies by the cable. Therefore, this paper presents some important insights towards PD measurements on real cable networks. Firstly, it provides the values of measured attenuation and limits of measurement when it comes to PD measurements in general. It demonstrates the damping of the High Frequencies merely by the influence of the injection loop inductance. Second, it presents the measurement results from an actual MV cable network showing pulse propagation in various network configurations. It makes detailed analysis of the network’s frequency response to explain crucial features such as pulse reflections from interconnections and interruptions. The results of measurement are compared to create a comprehensive argument towards selection of suitable measuring bands/frequencies and the pertinence of measuring at lower frequencies when it comes to power cables.
dc.description.conferencelocationMadrid, Spain
dc.description.conferencenameCIRED 2019
dc.description.openaccessYes
dc.description.peerreviewedYes
dc.description.sessionNetwork components
dc.description.sessionidSession 1
dc.identifier.isbn978-2-9602415-0-1
dc.identifier.issn2032-9644
dc.identifier.urihttps://cired-repository.org/handle/20.500.12455/419
dc.identifier.urihttp://dx.doi.org/10.34890/646
dc.language.isoen
dc.publisherAIM
dc.relation.ispartProc. of the 25th International Conference on Electricity Distribution (CIRED 2019)
dc.relation.ispartofseriesCIRED Conference Proceedings
dc.titleFrequency Response of a Real Cable Network and its Impact on Field PD Measurements
dc.title.number1492
dc.typeConference Proceedings
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