On-line partial discharge defected phase selection and localization in cross-bonded single core cables

Babaee, Abbas; Shahrtash, S. Mohammad

doi:10.1109/tdei.2015.004717

Cited by 11 publications

(11 citation statements)

References 6 publications

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“…Moreover, in this discrimination problem, energy‐based indices can intensify the difference between the sheath current of PD defective cable terminations and healthy ones, which facilitates the discrimination process. Though the authors have experienced different energy‐based indices [17] and [18], because of considerable difference of currents in different paths (shown in the previous section), the basic energy‐based index, that is, the cumulative signal energy (CSE), was found sufficient and efficient for discrimination between PD defective cable termination and healthy ones. This index is calculated by:

\begin{equation}CSE = \sum_{k = 1}^{{N_{end}}} {si{g^2}\left( {k\Delta t} \right)} ,\end{equation}

where

\Delta t

is the time step,

sig( {k\Delta t} )

denotes the considered sheath current signal.…”

Section: Proposed Discrimination Methodsmentioning

confidence: 99%

Analytical investigations on discrimination of partial discharge defective cable termination among healthy ones with joint sheath‐ground connection

Babaee

Shahinfar

Shahrtash

2022

IET Generation Trans & Dist

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Industrial complexes suffer from crosstalk of Partial Discharge (PD) defects in cable terminations connected to the same medium voltage busbars. This phenomenon happens because the sheath-ground connections of all cables of one switchboard are first fastened together and then connected to ground, which leads to PD pulses being induced from the source termination to others. In this paper, based on mathematical investigations on PD pulse propagation and by introducing an energy-based index, a simple rule-based procedure is proposed for discrimination between defective terminations and healthy ones connected to common busbars. The proposed procedure has been verified by simulations even when there exists noise pollution or multiple defects of different strengths.

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\begin{equation}CSE = \sum_{k = 1}^{{N_{end}}} {si{g^2}\left( {k\Delta t} \right)} ,\end{equation}

where

\Delta t

is the time step,

sig( {k\Delta t} )

denotes the considered sheath current signal.…”

Section: Proposed Discrimination Methodsmentioning

confidence: 99%

Analytical investigations on discrimination of partial discharge defective cable termination among healthy ones with joint sheath‐ground connection

Babaee

Shahinfar

Shahrtash

2022

IET Generation Trans & Dist

Self Cite

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“…Both of these networks contain 13 link‐boxes and 12 cable sections of 500 m single core cables for each phase. The parameters of each single core cable are extracted from [10].…”

Section: Basic Considerationsmentioning

confidence: 99%

Online localization and phase selection of multiple partial discharge sources in cross‐bonded cable networks

Shahinfar

Shahrtash

2022

IET Generation Trans & Dist

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This paper presents a novel rule-based method for online localization and phase selection of multiple partial discharge (PD) sources in cross-bonded cable (CBC) networks by simultaneous measurements of PD pulse trains at all link boxes. The proposed method detects PD defective cable sections (localization task) and their corresponding defective phases (phase selection task) regardless of the number of PD sources inside the CBC network and their severity differences. For the first time, the proposed method is capable of detecting more than one PD source by analysing PD pulse trains. Numerous simulations of different case studies performed in EMTP RV software indicate highly accurate performance of the proposed method even at high noise levels.

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“…Equation 7is then substituted into Equation (11) and the matrix form of the transmission coefficient T bond is obtained:…”

Section: Current Reflection At Cross-bonding Linksmentioning

confidence: 99%

“…As an increasing area of interest, the distribution of PD signals on the three-phase cross-bonding wires can be used as an important tool for PD location and eliminating the external disturbance [11][12][13]. However, previous studies are mainly based on fixed simulation parameters or a determined experimental environment, without considering the impact of cable laying parameters.…”

Section: Introductionmentioning

confidence: 99%

Amplitude Distribution of Partial Discharge Signals on Tunnel-Installed High-Voltage Cables

Chen¹,

Zang

Wang

et al. 2019

Applied Sciences

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For 110 kV and above tunnel-installed high-voltage (HV) cross-linked poly-ethylene (XLPE) cable systems, it is a normal procedure to adopt a cross-bonding scheme. The high-frequency current method is frequently used in the cross-bonded cable systems for on-site or online partial discharge (PD) detection by monitoring the signals on the cross-bonding wires. To further study the amplitude distribution characteristics of the PD signals, a parametric characteristic admittance model of a three-phase cable system in a tunnel is established based on Tylavsky’s formulas. The model is used to calculate the amplitude distribution formula of the PD pulse current on the cross-bonding wires. In addition, the influence of cable laying and tunnel environment on the amplitude distribution is also studied. Finally, the correctness of the model and the conclusion are verified by simulation experiments and on-site tests. The results show that the signal amplitude distribution is determined by the ratio of the characteristic admittances. As the distance between the cables and the distance from the inner wall of the tunnel increase, the amplitude difference gradually decreases.

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On-line partial discharge defected phase selection and localization in cross-bonded single core cables

Cited by 11 publications

References 6 publications

Analytical investigations on discrimination of partial discharge defective cable termination among healthy ones with joint sheath‐ground connection

Analytical investigations on discrimination of partial discharge defective cable termination among healthy ones with joint sheath‐ground connection

Online localization and phase selection of multiple partial discharge sources in cross‐bonded cable networks

Amplitude Distribution of Partial Discharge Signals on Tunnel-Installed High-Voltage Cables

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