Comparison between the PD Characteristics of g<sup>3</sup> and Dry Air for Gas-Insulated Switchgears

This paper presents a comparison between the partial discharge (PD) characteristics of g<sup>3</sup> and dry air for gas-insulated switchgears. PD signals were measured with a conventional method according to IEC 60270 and an ultra-high frequency (UHF) method. The partial discharge incep...

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Main Authors: Goang-Chul Shin, Sung-Wook Kim, Gyung-Suk Kil
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/19/7043
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author Goang-Chul Shin
Sung-Wook Kim
Gyung-Suk Kil
author_facet Goang-Chul Shin
Sung-Wook Kim
Gyung-Suk Kil
author_sort Goang-Chul Shin
collection DOAJ
description This paper presents a comparison between the partial discharge (PD) characteristics of g<sup>3</sup> and dry air for gas-insulated switchgears. PD signals were measured with a conventional method according to IEC 60270 and an ultra-high frequency (UHF) method. The partial discharge inception voltages (PDIVs) of g<sup>3</sup> and dry air are about 74% to 84% and 58% to 72%, respectively, in the protrusion on conductor (POC) system, and 90% to 96% and 80% to 93%, respectively, in the free moving particle (FMP) system, depending on the gas pressure of 0.1 MPa to 0.5 MPa. The single PD pulse in time and frequency domains are not distinguished according to gas type. The PRPD patterns have different phase angles depending on the gas type in the POC, while the phase angle is 0–360° in the FMP, regardless of the gas type. Lastly, the correlation was analyzed, showing that the output voltage in mV of the UHF sensor increases linearly in accordance with the apparent discharge in pC, regardless of the gas type. The experimental results in this paper are important as a fundamental database for the application of UHF monitoring systems in an eco-friendly GIS.
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spelling doaj.art-aacbecd5caa24f82b678393b5b9eed7f2023-11-23T20:12:09ZengMDPI AGEnergies1996-10732022-09-011519704310.3390/en15197043Comparison between the PD Characteristics of g<sup>3</sup> and Dry Air for Gas-Insulated SwitchgearsGoang-Chul Shin0Sung-Wook Kim1Gyung-Suk Kil2Department of Electrical and Electronics Engineering, Korea Maritime and Ocean University, Busan 49112, KoreaDepartment of Electrical & Electronic Engineering, Silla University, Busan 46958, KoreaDepartment of Electrical and Electronics Engineering, Korea Maritime and Ocean University, Busan 49112, KoreaThis paper presents a comparison between the partial discharge (PD) characteristics of g<sup>3</sup> and dry air for gas-insulated switchgears. PD signals were measured with a conventional method according to IEC 60270 and an ultra-high frequency (UHF) method. The partial discharge inception voltages (PDIVs) of g<sup>3</sup> and dry air are about 74% to 84% and 58% to 72%, respectively, in the protrusion on conductor (POC) system, and 90% to 96% and 80% to 93%, respectively, in the free moving particle (FMP) system, depending on the gas pressure of 0.1 MPa to 0.5 MPa. The single PD pulse in time and frequency domains are not distinguished according to gas type. The PRPD patterns have different phase angles depending on the gas type in the POC, while the phase angle is 0–360° in the FMP, regardless of the gas type. Lastly, the correlation was analyzed, showing that the output voltage in mV of the UHF sensor increases linearly in accordance with the apparent discharge in pC, regardless of the gas type. The experimental results in this paper are important as a fundamental database for the application of UHF monitoring systems in an eco-friendly GIS.https://www.mdpi.com/1996-1073/15/19/7043eco-friendly gas-insulated switchgearpartial dischargeg<sup>3</sup>dry airUHF sensor
spellingShingle Goang-Chul Shin
Sung-Wook Kim
Gyung-Suk Kil
Comparison between the PD Characteristics of g<sup>3</sup> and Dry Air for Gas-Insulated Switchgears
Energies
eco-friendly gas-insulated switchgear
partial discharge
g<sup>3</sup>
dry air
UHF sensor
title Comparison between the PD Characteristics of g<sup>3</sup> and Dry Air for Gas-Insulated Switchgears
title_full Comparison between the PD Characteristics of g<sup>3</sup> and Dry Air for Gas-Insulated Switchgears
title_fullStr Comparison between the PD Characteristics of g<sup>3</sup> and Dry Air for Gas-Insulated Switchgears
title_full_unstemmed Comparison between the PD Characteristics of g<sup>3</sup> and Dry Air for Gas-Insulated Switchgears
title_short Comparison between the PD Characteristics of g<sup>3</sup> and Dry Air for Gas-Insulated Switchgears
title_sort comparison between the pd characteristics of g sup 3 sup and dry air for gas insulated switchgears
topic eco-friendly gas-insulated switchgear
partial discharge
g<sup>3</sup>
dry air
UHF sensor
url https://www.mdpi.com/1996-1073/15/19/7043
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AT gyungsukkil comparisonbetweenthepdcharacteristicsofgsup3supanddryairforgasinsulatedswitchgears