Study of the time evolution of partial discharge characteristics and interfacial phenomena of simulated XLPE cable joint

Yoshida, Hidetaro; Tian, Zhihai; Hikita, Masayuki; Miyata, Hiroyuki

doi:10.1109/iseim.1998.741791

Cited by 10 publications

(3 citation statements)

References 6 publications

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“…Another simulation of a pulse with T r of 1ns and T FWHM of 5 ns being assumed to travel along a cable was performed. In fact, the rise time of observed original PD pulse emanating from any insulation defect is about 1 ns [19,20,21]. The result of the relationship between the upper limit of the bandwidth of the pulse with the propagation length is shown in Figure 7.…”

Section: Bandwidth Of Pulse Propagationmentioning

confidence: 95%

Partial discharge pulse propagation in power cable and partial discharge monitoring system

Sheng

Zhou

Hepburn

et al. 2014

IEEE Trans. Dielect. Electr. Insul.

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Partial discharge (PD) based condition monitoring has been widely applied to power cables. However, difficulties in interpretation of measurement results (location and criticality) remain to be tackled. This paper aims to develop further knowledge in PD signal propagation in power cables and attenuation by the PD monitoring system devices to address the localization and criticality issues. As on-line or in-service PD monitoring sensors commonly comprise of a high frequency current transformer (HFCT) and a high-pass filter, the characteristics of detected PD pulses depend on the attenuation of the cable, the HFCT used and the filter applied. Simulation of pulse propagation in a cable and PD monitoring system are performed, based on analyses in the frequency domain using the concept of transfer functions. Results have been verified by laboratory experiments and using on-site PD measurements. The knowledge gained from the research on the change in pulse characteristics propagating in a cable and through a PD detection system can be very useful to PD denoising and for development of a PD localization technique

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Section: Bandwidth Of Pulse Propagationmentioning

confidence: 95%

Partial discharge pulse propagation in power cable and partial discharge monitoring system

Sheng

Zhou

Hepburn

et al. 2014

IEEE Trans. Dielect. Electr. Insul.

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“…PDs at the wire edge with a large space for discharge would form the "I" type of cluster, as the discharge intensity tends to be large and the number of pulses tends to he small. On the other hand, those at the body part with a small space for discharge would he form the "-" type of cluster, as such a space would bring small discharge intensity and large number of pulses [4]. Figure 5 shows the transition of Qmax and PD number (n) when 7 kVrms was applied to the sample with 0.15 mm diameter wire.…”

Section: Resultsmentioning

confidence: 99%

“…The shorter exposure time to the discharge leads to the quicker decay of Vi (4). The surface resistance short time after the exposure to the discharge becomes low.…”

mentioning

confidence: 99%

Development of model specimen for evaluating insulation properties and partial discharge phenomena of polymeric solid-solid internal interface

Nagao

Hozumi

Kawakami

et al.

2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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We have been developing a standard specimen to evaluate electrical insulation properties at polymeric solidsolid intemal interface, especially modeling the interface in EHV extruded cable splices. The degradation at polymeric solid intemal interface in cable splices is considered to he initiated by the partial discharge (PD) phenomena. This paper describes the partial discharge (PO) behavior of the developed specimen when a tungsten fme wire is introduced at the interface as a conductive foreign substance. Under the voltage application the maximum PD magnitude (Qmax) and PD number (n) decreased with time and PD tended to disappear, This phenomenon is not a swarming pulsive microdischarge one, since the PD inception voltage (Vi) increased with the voltage application time. When voltage application is stopped for a long time, Vi decreased to the initial value and the values of both Qmax and n recovered. The recovery of PD characteristic became faster when the pause of voltage application became shorter. The surface resistance between two tungsten wires installed at the interface decreased after suffering the PD and then recovered with the pause of voltage application with similar time variation of PD characteristic. These PD behaviors are to be related to the electric field relaxation at the tungsten wire tip.

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A distributed PD detection method for high voltage cables based on high precision clock synchronization

Yang,

Pang,

Zhang

et al. 2025

Measurement

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Study of the time evolution of partial discharge characteristics and interfacial phenomena of simulated XLPE cable joint

Cited by 10 publications

References 6 publications

Partial discharge pulse propagation in power cable and partial discharge monitoring system

Partial discharge pulse propagation in power cable and partial discharge monitoring system

Development of model specimen for evaluating insulation properties and partial discharge phenomena of polymeric solid-solid internal interface

A distributed PD detection method for high voltage cables based on high precision clock synchronization

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