PD Diagnosis on 22.9kV XLPE Underground Cable using Ultra-wideband Sensor

Lwin, Kyaw-Soe; Lim, Kwang-Jin; Park, Noh-Joon; Park, Dae-Hee

doi:10.5370/jeet.2008.3.3.422

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…From the literature survey, there are very few attempts to continuously monitor and record PD associated with electrical treeing process of XLPE nanocomposites from the inception to failure [18]. Limited reports are available on the phase resolved PD pattern and corresponding PD pulse characteristics of XLPE nanocomposites in correlation with electrical tree growth process.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Electrical Tree Growth of XLPE Nano Composites using Time–Frequency Map and Clustering Analysis of PD Signals

Purushotham¹,

Chandrasekar²,

Montanari

2020

J. Electr. Eng. Technol.

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Failure of underground cables due to electrical treeing phenomena, i.e. formation of electrical discharges in the imperfections of cable insulation, is a major problem faced by electrical utilities. Many research works on nanocomposites are being carried out to improve the electrical treeing resistance of the XLPE cable insulation material. Technological advancements in communication and data analytic systems have shown the way for implementing online continuous partial discharge (PD) monitoring systems for high voltage apparatus. Hence collection of PD database of XLPE nanocomposites in the laboratory during entire electrical tree growth process is important for implementing efficient condition monitoring systems and relatively little work has been published in this area. In this work, PD characteristics of XLPE nanocomposites with 1, 3, 5 and 10 wt% silica were investigated. Electrical tree growth and corresponding phase resolved PD (PRPD) pattern were analysed with respect to time. Cluster analysis of equivalent time-frequency mapping of PD signals was carried out with respect to tree growth time period. Statistical analysis was performed for the entire set of PD data. Results show that cluster analysis of T-F map of PD data is useful in estimating early failure of insulating material due to treeing. Addition of silica nano fillers in the range of 3-5 wt% concentration significantly improves the PD resistance and breakdown time of XLPE material.

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Section: Introductionmentioning

confidence: 99%

Investigation of Electrical Tree Growth of XLPE Nano Composites using Time–Frequency Map and Clustering Analysis of PD Signals

Purushotham¹,

Chandrasekar²,

Montanari

2020

J. Electr. Eng. Technol.

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“…Some examples of antennas are global positioning systems (GPS) [1], partial discharge diagnosis systems [2], and radio frequency identification (RFID) tags [3]. One of the most attractive planar antennas is the planar spiral antenna, which is characterized by broad bandwidth, circular polarization, and small physical size.…”

Section: Introductionmentioning

confidence: 99%

Cavity-backed Two-arm Spiral Antenna with a Ring-shaped Absorber for Partial Discharge Diagnosis

Kim¹,

Hwang²,

Kim³

2013

Journal of Electrical Engineering and Technology

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-A cavity-backed two-arm spiral antenna for partial discharge diagnosis is presented. The proposed antenna consists of a two-arm Archimedean spiral, a tapered microstrip balun as spiral antenna feed, and a ring-shaped absorber-loaded cavity. The Archimedean spiral antenna is designed for the operating frequency band of 0.3 GHz to 1.5 GHz and fed by the tapered microstrip balun. The cavity is utilized to transform the bidirectional beam into a unidirectional beam, thereby enhancing gain. The ring-shaped absorber is stacked in the cavity to reduce the reflected waves from the cavity wall. The proposed antenna is designed and simulated using CST Microwave Studio. A prototype of the proposed antenna is likewise fabricated and tested. The measured radiation patterns are directional to the positive z-axis, and the measured peak gain is 8.13 dBi at a frequency of 1.1 GHz.

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PD Diagnosis on 22.9kV XLPE Underground Cable using Ultra-wideband Sensor

Cited by 2 publications

References 9 publications

Investigation of Electrical Tree Growth of XLPE Nano Composites using Time–Frequency Map and Clustering Analysis of PD Signals

Investigation of Electrical Tree Growth of XLPE Nano Composites using Time–Frequency Map and Clustering Analysis of PD Signals

Cavity-backed Two-arm Spiral Antenna with a Ring-shaped Absorber for Partial Discharge Diagnosis

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