Sensitivity Analysis of Water Tree and Input Pulse Parameters for Time-Domain Reflectometry of Power Cables Using Taguchi Method

Kim, Hanju; Park, Ji-san; Mun, Jaegyeong; Kim, Dong-Hun; Hwangbo, Seung; Yi, Dong-Young; Byun, Jin-Kyu

doi:10.1007/s42835-020-00591-7

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…For example, excessive cable loading leads to the thermal ageing of insulation layers [1], long-term effects of water and electric field stress lead to water tree ageing [2], and water tree ageing is considered to be the main reason for the degradation in the insulation performance of the widely used XLPE submarine cable system [3,4]. Therefore, judging whether there is water tree ageing in the cable and taking corresponding protective measures are important to ensure the safety of the cables [5,6].…”

Section: Introductionmentioning

confidence: 99%

A novel characterization method for water trees based on the transmission characteristics of complementary split ring resonators

Xiao

Wang

et al. 2021

High Voltage

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In order to achieve rapid and simple non-destructive testing of water trees in materials, a novel water tree characterisation method based on the complementary split ring resonators (CSRR) was proposed. The characteristics of circular CSRR and rectangular CSRR were analysed in high-frequency electromagnetic simulation software. The resonant frequency of CSRR was found to be correlated to the dielectric constant of the materials. In addition, the lumped equivalent circuit parameters of CSRRs were also calculated and simulated. The results of electromagnetic simulations and circuit simulations achieved good consistency. In the experimental part, sensors based on the two kinds of CSRRs were fabricated and were used to detect the water tree defects in low-density polyethylene samples. The experiment results showed that the method of using CSRR sensors to detect water tree is feasible.

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Section: Introductionmentioning

confidence: 99%

A novel characterization method for water trees based on the transmission characteristics of complementary split ring resonators

Xiao

Wang

et al. 2021

High Voltage

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Understanding of Pulse Voltage Response Analysis for Degradation in XLPE Cable Using Equivalent Circuit Model

Selvamany

Varadarajan

2022

J. Electr. Eng. Technol.

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Improved Locating Method for Local Defects in XLPE Cable Based on Broadband Impedance Spectrum

Wei

Pang

et al. 2022

Energies

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The crosslinked polyethylene (XLPE) cable safety is affected by environmental factors and artificial defects during operation. This work proposes an improved locating method based on broadband impedance spectrum (BIS) to locate local defects in XLPE cables. The calculation process of the algorithm has been analyzed. The selection of the incident Gaussian signal and the peak recognition method have been discussed, where the pulse width of the Gaussian signal was found to be determined primarily by the upper limit frequency of the traveling wave transmitting in the cable. The centroid and function fitting methods were established to reduce the peak recognition error caused by the test sampling rate. This work verified the accuracy of the algorithm through experiments. A vector network analyzer (VNA) was used to test the BIS of the cable. A 20 m-long cable containing abrasion and an inserted nail with different depths was measured in the BIS test. It was found that the abrasion and the nail could be located. The locating deviation of abrasion was within ±1%, and the centroid and function fitting methods could effectively reduce the locating deviation. The locating deviation was within ±1% when the depth of the nail inserted into the cable accounted for less than 50% of the insulation thickness. When the depth exceeded 75% of the insulation thickness, the deviation of each method was more significant, and the maximum absolute value of the deviation was 4%.

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Sensitivity Analysis of Water Tree and Input Pulse Parameters for Time-Domain Reflectometry of Power Cables Using Taguchi Method

Cited by 4 publications

References 7 publications

A novel characterization method for water trees based on the transmission characteristics of complementary split ring resonators

A novel characterization method for water trees based on the transmission characteristics of complementary split ring resonators

Understanding of Pulse Voltage Response Analysis for Degradation in XLPE Cable Using Equivalent Circuit Model

Improved Locating Method for Local Defects in XLPE Cable Based on Broadband Impedance Spectrum

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