2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)最新文献_第8页

Additive impact on space charge of XLPE-based insulators subjected to radio-chemical aging 添加剂对交联聚乙烯基绝缘子放射性化学老化空间电荷的影响

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493986

S. V. Suraci, D. Fabiani

引用次数: 3

The Effect of Tap Changer Coking and Pitting on Frequency Response Analysis Measurement of Transformer 分接开关结焦和点蚀对变压器频响分析测量的影响

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493956

S. Al-Ameri, Ahmed Allawy Alawady, Mohd Fairouz Mohd Yousof, Muhammad Saufi Kamarudin, H. Illias

{"title":"The Effect of Tap Changer Coking and Pitting on Frequency Response Analysis Measurement of Transformer","authors":"S. Al-Ameri, Ahmed Allawy Alawady, Mohd Fairouz Mohd Yousof, Muhammad Saufi Kamarudin, H. Illias","doi":"10.1109/ICPADM49635.2021.9493956","DOIUrl":"https://doi.org/10.1109/ICPADM49635.2021.9493956","url":null,"abstract":"The tap changer in a power transformer plays a vital function in regulating the voltage. It has been reported that the tap changer contributes to a large percentage of failures in the power transformer. This paper investigates a faulty tap changer using the frequency response analysis (FRA) test. All measurement configurations in FRA were employed to verify the effectiveness in detecting the fault. The test configurations are the end-to-end open circuit, the end-to-end short circuit, the capacitive inter-winding, and the inductive inter-winding. The coking and pitting of the tap changer are fabricated in several pieces of copper. These pieces are installed on the transformer tap selector. The FRA measurement was then performed on an 11/ 0.433 kV, 500kVA transformer at normal and faulty conditions. The variation between the FRA measurements is then calculated using the correlation coefficient (CC). This study improves the understanding of the FRA method by exploring its ability to detect tap changer faults. It is realized that the FRA method is sensitive to the tap changer coking and pitting. The results show that the tap changer coking effect at low frequencies. The response drop in magnitude at low frequencies between 20 Hz and 2 kHz. For pitting, it shows the response shifting towards higher frequencies.","PeriodicalId":191189,"journal":{"name":"2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132481388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Tool to Determine the Hydrophobicity of Insulators using Contact Angle of a Water Droplet 用水滴接触角测定绝缘子疏水性的工具

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493867

Supun Amarathunga, Lochana Ranathunga, Prabath Lakmal, Dimuth Saranga, R. Samarasinghe, J. R. Lucas

引用次数: 0

Electric thermal coupling field calculation of GIS conductor joint GIS导线接头的电热耦合场计算

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493965

Zhikai Li, Shouwen Liu, Xiukun Li, B. Yue, Peng Liu, Zongren Peng

{"title":"Electric thermal coupling field calculation of GIS conductor joint","authors":"Zhikai Li, Shouwen Liu, Xiukun Li, B. Yue, Peng Liu, Zongren Peng","doi":"10.1109/ICPADM49635.2021.9493965","DOIUrl":"https://doi.org/10.1109/ICPADM49635.2021.9493965","url":null,"abstract":"Various types of electrical connectors in GIS play a decisive role in the withstand voltage performance, normal load current capacity, short-circuit current tolerance and overall reliability of GIS. In order to study the electric thermal coupling field characteristics of the conductor joint under the contact finger connection mode, a three-dimensional electromagnetic heat flow coupling model of 220kV GIS conductor joint is established in this paper. The finite element analysis method is used to simulate and calculate the steady-state temperature field distribution by using COMSOL multiphysics and ANSYS-CFX, and the electric field distribution when the material performance parameters change under the influence of temperature is calculated. In addition, considering that the contact finger is affected by external factors, resulting in contact deterioration, this paper calculates the temperature field and electric field distribution of GIS conductor joint under different degrees of contact deterioration. The results show that the increase of contact resistance will cause a certain temperature rise of GIS conductor joint, and then affect the overall electric field distribution. This paper can provide a reference for the research on the heating of conductor joints in engineering.","PeriodicalId":191189,"journal":{"name":"2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122570303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Analysis of Permittivity and Temperature Effect on Charge Accumulation within Cross-Linked Polyethylene (XLPE) via Numerical Simulation 通过数值模拟分析介电常数和温度对交联聚乙烯(XLPE)内部电荷积累的影响

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493900

N. H. Nik Ali, A. Mohd Ariffin, M. S. Abd Rahman, M. Osman, N. H. Zaini, N. Rameli

{"title":"Analysis of Permittivity and Temperature Effect on Charge Accumulation within Cross-Linked Polyethylene (XLPE) via Numerical Simulation","authors":"N. H. Nik Ali, A. Mohd Ariffin, M. S. Abd Rahman, M. Osman, N. H. Zaini, N. Rameli","doi":"10.1109/ICPADM49635.2021.9493900","DOIUrl":"https://doi.org/10.1109/ICPADM49635.2021.9493900","url":null,"abstract":"In general, High Voltage Direct Current (HVDC) transmission is primarily used for submarine applications, including to integrate offshore wind farms to land or to transmit large electrical power over long distances across the sea. Typical insulation used within HVDC cables is either Cross-Linked Polyethylene (XLPE) or Low-Density Polyethylene (LDPE). When a HVDC cable is in service and therefore stressed under DC high voltage, space charge will start to accumulate within the polymeric insulation of the power cable. It is widely accepted that the dynamics of space charge accumulation is as an important element affecting the performance of high voltage cable insulation system. This paper intends to investigate and explain the influence of different permittivity and room temperature on the space charge accumulation within XLPE through a study of numerical simulation. The numerical simulation in this paper was developed based on previous research by R M Hill and J M Alison. Three fundamental equations known as Poisson’s, Transport and Continuity equations, which represent the characteristics of space charge, were employed for the numerical simulation. Preliminary results of the numerical simulation have shown that the variation of these parameters would influence the accumulation behaviour of space charge within the polymeric material.","PeriodicalId":191189,"journal":{"name":"2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122930386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Investigating Surface Condition of Corona Aged Epoxy-Al Nanocomposites by Adopting Wavelet Transform 采用小波变换研究电晕时效环氧铝纳米复合材料的表面状况

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493906

M. S. Babu, C. Naresh, R. Jayaganthan, T. Imai, R. Sarathi

引用次数: 0

Electrical Equivalent Circuit Simulation of Polluted RTV Silicone Rubber Coated Insulator Under Salt Fog Condition 盐雾条件下污染RTV硅橡胶涂层绝缘子等效电路仿真

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493973

Muhammad Fathur Majid, Adjie Bagaskara, Lunnetta Safura Lumba, Suwarno

{"title":"Electrical Equivalent Circuit Simulation of Polluted RTV Silicone Rubber Coated Insulator Under Salt Fog Condition","authors":"Muhammad Fathur Majid, Adjie Bagaskara, Lunnetta Safura Lumba, Suwarno","doi":"10.1109/ICPADM49635.2021.9493973","DOIUrl":"https://doi.org/10.1109/ICPADM49635.2021.9493973","url":null,"abstract":"Leakage Current (LC) identification is commonly used to diagnose the insulator’s health, whether it is in good or bad condition. This paper reports the result of LC identification of polluted Room Temperature Vulcanized (RTV) coated ceramic insulator under salt fog condition. An electrical equivalent circuit of insulator was proposed to simulate the LC waveform. The simulation was done using ATPDraw software. The simulation result would be validated for its magnitude, waveform, Total Harmonic Distortion (THD), and dominant harmonic number. Several simulation case studies were conducted, which are applied voltage variation, salt fog conductivity variation, and prior to flashover condition. The results show that the insulator characteristics could be identified by analyzing the pattern of the obtained electrical parameters from each condition. The electrical properties are not much changed as the applied voltage increased. Meanwhile, the electrical properties of the insulator are affected by the salt fog conductivity. Insulators used on high conductivity salt fog will have lower resistance and a high tendency to initiate arc on the surface. Prior to flashover condition is warned by the decreasing of the surface resistance and high severity level of arcing.","PeriodicalId":191189,"journal":{"name":"2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122082164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Cellulose Fiber Contamination and Bridging on Breakdown Voltage of PFAE under Lightning Impulse Stress 雷击应力下纤维素纤维污染和桥接对PFAE击穿电压的影响

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493921

S. Saaidon, M. Rohani, M. Talib, N. Muhamad, M. Kamarol

{"title":"Influence of Cellulose Fiber Contamination and Bridging on Breakdown Voltage of PFAE under Lightning Impulse Stress","authors":"S. Saaidon, M. Rohani, M. Talib, N. Muhamad, M. Kamarol","doi":"10.1109/ICPADM49635.2021.9493921","DOIUrl":"https://doi.org/10.1109/ICPADM49635.2021.9493921","url":null,"abstract":"This research investigates the effect of cellulose fiber contamination and its bridging skeleton on the breakdown voltage of Palm Fatty Acid Easter (PFAE) under Standard Lightning Impulse Voltage (SLIV). An industrial microcrystalline cellulose fine fiber (particle size: 20 µm,) is selected as artificial contaminants with 0.004wt% fiber concentration level. A single stage of test transformer completed with auxiliary circuit is generated to deliver a standard impulse waveforms of 1.2/50 µs and it is applied according to the outlined of IEC60897 to obtain breakdown voltage test. The cylindrical test cell fitted with a needle-plane configuration of 0.5mm gap electrodes are utilized to create the strong non-uniform field crossed the gap. A 10kV DC power supply is connected between the electrodes in order to create and retained the cellulose bridge skeleton artificially. The microscope fitted with the digital camera responsible to monitor and capture the optical images of bridging formation between the electrodes gap. The breakdown voltage obtained from the experiment is analyzed using Weibull Cumulative Breakdown Probability. In this analysis, the Clean Oil is used as the reference. Based on the experimental results, the cellulosic fiber contamination has reduced nearly 3% breakdown voltage of PFAE. The cellulose fiber contamination with bridge formation is prominently influencing lower breakdown voltage to 16% lower than clean PFAE oil.","PeriodicalId":191189,"journal":{"name":"2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129641483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

New Approach for Monitoring Contamination Level on Outdoor Insulator Based on Harmonics Components of the Leakage Current 基于泄漏电流谐波分量监测室外绝缘子污染程度的新方法

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493975

A. Salem, R. ABD RAHMAN, Nor Akmal MOHD JAMAIL, Nordiana Azlin Othman, I. Ullah, Hafisoh Ahmad

引用次数: 3

Resistive Leakage Current Based Condition Assessment of Zinc Oxide Surge Arrester: A Review 基于电阻漏电流的氧化锌避雷器状态评估综述

2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 2021-07-12 DOI: 10.1109/ICPADM49635.2021.9493979

Abdullah Munir, Z. Abdul-Malek, Rai Naveed Arshad

引用次数: 2