The application of matched filters to PD detection and localization

Veen, J.; Wiellen, P.C.J.M. van der

doi:10.1109/mei.2003.1238714

Cited by 41 publications

(16 citation statements)

References 12 publications

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“…A. Characteristic impedance According to (1), the characteristic impedance is calculated withZ coax andY. The calculated result is compared with the measured result as shown in Figure 3.…”

Section: B Distributed Shunt Admittancementioning

confidence: 99%

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Estimation of transmission line parameters single-core XLPE cables considering semiconducting layer

Wouters

Wagenaars

et al. 2012

2012 IEEE International Conference on Condition Monitoring and Diagnosis

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“…A. Characteristic impedance According to (1), the characteristic impedance is calculated withZ coax andY. The calculated result is compared with the measured result as shown in Figure 3.…”

Section: B Distributed Shunt Admittancementioning

confidence: 99%

“…A cable model that describes high frequency signal propagation along the cable is required [1]. A transmission line model is normally used for a coaxialstructure, such as a power cable [2].…”

mentioning

confidence: 99%

Estimation of transmission line parameters single-core XLPE cables considering semiconducting layer

Wouters

Wagenaars

et al. 2012

2012 IEEE International Conference on Condition Monitoring and Diagnosis

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“…A model that describes the propagation of partial discharge (PD) pulses through power cable systems is required for certain sensitive PD detection techniques [1]. Further, the understanding and interpretation of PD measurement on cable systems in general can be improved using a proper model.…”

Section: Introductionmentioning

confidence: 99%

Approximation of Transmission Line Parameters of Single-Core XLPE Cables

Wagenaars

Wouters

Wielen

et al. 2008

Conference Record of the 2008 IEEE International Symposium on Electrical Insulation

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-An accurate model of the high frequency behavior of a power cable is required for the precise simulation of the propagation of partial discharges in such a system. A cable model consists of the transmission line parameters: characteristic impedance, attenuation coefficient and propagation velocity. The semi-conducting screens of an XLPE power cable have a significant influence on the pulse propagation along the cable. Unfortunately, the dielectric properties of these layers are usually unknown and can vary hugely between cable types. This paper shows how the characteristic impedance and propagation velocity can be estimated using the cable geometry and the dielectric properties of XLPE. Typical uncertainties in the input parameters result in an uncertainty of a few percent in the approximation of the characteristic impedance and propagation velocity.

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“…In order to detect relatively low PD levels, say hundreds pC for paperinsulated-lead-covered (PILC) cables, advanced signal processing is required [7].…”

Section: Introductionmentioning

confidence: 99%

Online calibration of high-frequency partial discharge signals in three-phase belted power cables

Wouters

2005

IEE Proceedings - Science, Measurement and Technology

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Partial discharge (PD) magnitudes from classical detection techniques are expressed in terms of apparent charges. Signals from HF/VHF/UHF techniques on substation components are often hard to express in this quantity because of complex signal excitation and propagation channels. A method to calibrate PD signals obtained during online inductive detection in medium voltage belted cables is described. Online inductive detection implies that the impedances of components present in substations essentially determine the detected PD signal magnitude. The use of belted cables means, that the coupling of a PD event to the conductors not only depends on the PD site within the cross-section of the cable or cable accessory, but also becomes dependent on the momentary phase angle. In addition, during signal propagation the signal magnitude may alter according to the propagation modes of a multi-conductor cable. These aspects are studied quantitatively by the use of theoretical modelling in addition to offline and online experiments. PD diagnostic equipment including pulse injection capability allows online calibration with sufficient accuracy, irrespective of the actual substation arrangement.

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The application of matched filters to PD detection and localization

Cited by 41 publications

References 12 publications

Estimation of transmission line parameters single-core XLPE cables considering semiconducting layer

Estimation of transmission line parameters single-core XLPE cables considering semiconducting layer

Approximation of Transmission Line Parameters of Single-Core XLPE Cables

Online calibration of high-frequency partial discharge signals in three-phase belted power cables

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