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Evolution mechanism of ultraviolet and electrical phenomena induced by protrusion discharge in GIS
2020
Journal of Electrical Engineering
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of UV signal in different severity of discharges is analyzed. ...
Step method is used to inspire the discharges of different severity, based on which, the regression relationship of ultraviolet (UV) signal and electrical signal are studied, and the perception mechanism ...
Acknowledgments This project is supported by Research and application of optical and electrical sensing technology with high accuracy for partial discharge in GIS, the Technical Project of State Grid Corporation ...
doi:10.2478/jee-2020-0036
fatcat:luszc2jt5jgffoy72hyiybixyq
Subject index 2018
2018
IEEE transactions on dielectrics and electrical insulation
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POLyMERS: Polymer Electrets with Quadratic Nonlinear-Optical Activity 778 OPTICAL SIGNAL: Simulation Analysis on the Propagation of the Optical Partial Discharge Signal in I-Shaped and L-Shaped GILs 1421 ...
to SF 6 in HVDC-GIL Systems 1351 Microscopic Charge Provision at Interfaces of Gas-Insulated (HVDC/HVAC) Systems 1186 Simulation Analysis on the Propagation of the Optical Partial Discharge Signal in ...
doi:10.1109/tdei.2018.8561357
fatcat:dunr2t5nkfd2vg7iqhvsfshrjq
Intelligent Monitoring System Based on Optical Fiber Acoustic Emission Sensor and Its Application in Partial Discharge Diagnosis of Gas-insulated Switchgear
2021
Sensors and materials
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Partial discharge (PD)-induced AE signals of different defects were collected by this sensor and used for back-propagation artificial neural network (BP-ANN) training and recognition after data preprocessing ...
In this study, a new type of optical fiber acoustic emission (AE) sensor based on the photoelastic effect and the polarization modulation method is proposed and fabricated. ...
(1) Most insulation faults of GIS are caused by partial discharges (PDs), which are induced by small insulation defects. ...
doi:10.18494/sam.2021.2974
fatcat:h2neo535lvfbhdreojilz7wvhy
Influence of Different Structure and Specification Parameters on the Propagation Characteristics of Optical Signals Generated by GIL Partial Discharge
2020
Energies
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on the propagation of the GIL PD optical signal is studied. ...
The propagation characteristics of optical signals in gas insulated metal-enclosed transmission lines (GIL) are the basis of optical detection research. ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/en13123241
fatcat:w7yif7mnfjf7daflv6gu4dyihq
Highly Sensitive Acoustic Emission Sensor Based on Polarization-maintaining and Absorption-reducing Polarization-maintaining Fiber
2018
Sensors and materials
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Partial discharge (PD) usually occurs before the insulation failure of a gas-insulated switchgear (GIS). ...
Early failures in GIS can be detected effectively by monitoring the vibration signal initiated by PD. ...
Acknowledgments This work is partially supported through Science and Technology Project (Nos. 10-12) of China Datang Corporation Renewable Power Co., Ltd. ...
doi:10.18494/sam.2018.1719
fatcat:q6jdn3fe6zay7pofre34ltigga
On the Electromagnetic Wave Behavior Due to Partial Discharge in Gas Insulated Switchgears: State-of-Art Review
2019
IEEE Access
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The ultra-high frequency techniques have recently shown superior performance in the detection and classification of electromagnetic waves produced by partial discharge. ...
It also delivers an overview of the electromagnetic wave behavior in the complex structure of gas insulated switchgears, and outlines the important characteristics of the internal and external partial ...
The main contribution of this paper is to provide an overview on the characteristics of the detected UHF electromagnetic waves generated by partial discharge inside GIS devices. ...
doi:10.1109/access.2019.2921089
fatcat:5fdscdynlrdetaxwr743xhwo7u
Table Of Contents
2021
2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO)
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Yuan, Feng Yuan, Dawei Cheng, Zailin Li and Jiayu Pan -
-Title: Simulation Research of Optical Sensor Applied in GIS Partial Discharge Detection Author: Qiang Gao, Qi Liu, Feng Yuan, Zailin Li, Jicheng ...
Pressure in Air Author: Yanqing Li, Changyun Li and Fengtian Sun -
-Title: A Feature Extraction Method of GIS Optical Partial Dischage Signal Based on Multifractal Spectrums Author: Qiang Gao, Fang ...
doi:10.1109/aeero52475.2021.9708222
fatcat:bdfv2s6crfbu7pmbx43luivn5q
Review on partial discharge detection techniques related to high voltage power equipment using different sensors
2014
Photonic Sensors
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The review suggests that optical detection techniques provide many advantages in the consideration of accuracy and suitability for the applications when compared to other techniques. ...
When operating an equipment or a power system at the high voltage, problems associated with partial discharge (PD) can be tracked down to electromagnetic emission, acoustic emission or chemical reactions ...
Acknowledgment The author gratefully acknowledges the Faculty of Electrical Engineering, Universiti Teknologi Malaysia for giving the support in this study. ...
doi:10.1007/s13320-014-0146-7
fatcat:edsnhf7rzrhfrae5uyrsbkly7q
Design of a Real-Time Wireless Sensing Monitoring System Based on Acoustic Emission Power GIS Equipment
2021
Journal of Sensors
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In this paper, real-time monitoring of acoustic emission power GIS equipment is studied and analyzed, and a real-time wireless sensing monitoring system is designed. ...
In this paper, for the actual situation of GIS equipment, combined with the characteristics of the wireless sensor network structure and the design needs of the monitoring system (the overall design of ...
Conflicts of Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. ...
doi:10.1155/2021/9726147
fatcat:myif7cczdnantdrxgb27zaemoy
A Fiber Optic Ultrasonic Sensor Using Polarization-maintaining Fiber for Partial Discharge Monitoring
2019
Sensors and materials
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Acknowledgments This work is partially supported by the Fundamental Research Funds for the Central Universities (22120180121, 22120170260, and 22120180299) and the National Natural Science Foundation of ...
The reliability of insulation in the GIS is regarded as one of the most important characteristics in monitoring the health status of EHV systems. ...
(3) (4) (5) Partial discharge (PD) is usually an early signal of insulation failure. ...
doi:10.18494/sam.2019.2260
fatcat:dt2du4huarhmzckhrnjkifzoly
Chaos Synchronization Error Technique-Based Defect Pattern Recognition for GIS through Partial Discharge Signal Analysis
2014
Entropy
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Firstly, a data pretreatment is performed on the measured raw data for the purpose of computational burden reduction. ...
The work is aimed at using the chaos synchronization error dynamics (CSED) technique for defect pattern recognition in gas insulated switchgear (GIS). ...
Acknowledgments This research was supported by the National Science Council of Taiwan, under Grant NSC 100-2221-E-027-015 and NSC 99-2221-E-167-030-MY3. ...
doi:10.3390/e16084566
fatcat:7wpnixc64vhszj2zgfhwbax23m
Understanding Electrical Treeing Phenomena in XLPE Cable Insulation Adopting UHF Technique
2011
Journal of Electrical Engineering
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In the present study, an attempt has been made to identify the partial discharges caused due to inception and propagation of electrical trees adopting UHF technique. ...
The UHF signal generated due to partial discharges formed during tree growth were analyzed adopting Ternary plot, which can allow one to classify the shape of tree structure formed. ...
Judd, University of Strathclyde for his kind support in carrying out the present study. ...
doi:10.2478/v10187-011-0012-4
fatcat:gvslgqbbkveizkk4lg5qa6vwgu
Long Distance GIL PD Fault Localization Method Based on Amplitude Difference and Time Difference Calculation of UHF Coupling Signal
2016
Journal of Mechanics Engineering and Automation
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In the long distance GIL under certain conditions, this paper researches and realizes detection of PD characters and accurate fault localization through UHF coupling sensors at different positions of the ...
The main methods for the detection are UHF signal amplitude difference (DOA) and time difference (TOF). ...
Similar to the insulation test and diagnosis of GIS, one effective insulation test method of GIL is the signal detection of PD (partial discharge). ...
doi:10.17265/2159-5275/2016.01.005
fatcat:x76ycljodve4tklw4xgqcmehxi
Subject Index 2020
2020
IEEE transactions on dielectrics and electrical insulation
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Joint Resolved PD Characteristics of Defects on Insulator Surface in GIS Statistical Feature Extraction and System Identification Algorithms for Partial Discharge Signal Classification Using Laguerre ...
Detection by Dissolved Gas Analysis FC-72 DIELECTRIC LIQUID: Effect of Bubble Flow on Partial Discharge under Non-Uniform AC Electric Fields in FC-72 Partial Discharge Characteristics of Bubble Flow under ...
doi:10.1109/tdei.2020.9293253
fatcat:rsdsoetjnjfcpdwdhlmaukfy54
Optimal Placement of UHF Sensors for Accurate Localization of Partial Discharge Source in GIS
2019
Energies
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The model is based on 0-1 program in consideration of the attenuation influence on the propagation of electromagnetic (EM) waves generated by PD in GIS. the optimal placement plan improves the economy, ...
This paper proposes an optimal placement model of ultra-high frequency (UHF) sensors for accurate location of partial discharge (PD) in gas-insulated switchgear (GIS). ...
Noise Reduction The noise reduction method is validated by a measured partial discharge signal with noise shown in Figure 9 . . Figure 9 . Measured partial discharge signal. ...
doi:10.3390/en12061173
fatcat:vjryyzb5anbq7dctliqr2oomh4
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