SF6 Gas Replacement in Pulsed High Voltage Coaxial Cables

Tobias Stadlbauer, Thomas Kramer, Dimitrios Kontelis, Laurent Ducimetiere, Luc Sermeus, David Woog

CERN, Switzerland

Insulation Characteristics of Spacer Filled with Different Gas insulating mediums Under Superimposed Voltage of DC and Impulse

Jingrui Wang¹, Zhiyuan Wang², Jian Wang¹, Yanan Chang¹, Qi Hu¹, Xiaoru Ni¹, Qingmin Li¹

¹State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University, Beijing 102206, China; ²State Grid Beijing Electric Power Co., Ltd. Chaoyang Power Supply BR, Beijing 100124, China

Electron transport coefficients and negative streamer dynamics in CF3I-SF6 gas mixtures

Sasa Dujko¹, Jasmina Atic¹, Danko Bosnjakovic¹, Zoran Petrovic^1,2, Jaime de Urquijo³

¹Institute of Physics Belgrade, Serbia; ²Serbian Academy of Sciences and Arts, Serbia; ³Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México

Prediction of breakdown voltage value in SF6-N2 gases mixture under DC voltage with the influence of conducting particles by analyzing experimental data using ANN

Hafiz Muhammad Azib Khan, Qingmin Li, Jian Wang, Jingrui Wang, Yanan Chang

Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University, Beijing 102206, China

Calculation of Thermodynamic Physical Properties of C4F7N-CO2 Mixed Gas

Zhen Zhang¹, Xin Lin¹, Xiaolong Li², Jia Zhang¹

¹School of Electrical Engineering,Shenyang University of Technology, China, People's Republic of; ²Department of Electrical Engineering and Electronics, University of Liverpool

Study on Electric Strength and Synergistic Effect of C3F7CN-CO2 Gas Mixture by Steady State Townsend Method

Zhikang Yuan, Youping Tu, Chengqian Yi, Yi Cheng, Ying Zhang, Xin Ai, Cong Wang

North China Electric Power University, China, People's Republic of

Investigation on Heating Aging Mechanism of Cellulose Paper for Oil-Immersed Transformer Main Insulation

Daosheng Liu^1,2, Christopher Garang Deng¹, Xiangdong Xu², Jing Ye¹, Xiaofan Li¹, Kammeugue Noubissi Romaric¹, Xiaolong Li³

¹Jiangxi University of Science and Technology, China, People's Republic of; ²Electric Power Engineering, Chalmers University of Technology, Sweden; ³School of Electrical Engineering, Shenyang University of Technology, China

Potential Usage of Magnetic Liquids in High Voltage Test Devices

Mislav Trbušić, Jože Pihler, Anton Hamler

University of Maribor, Slovenia

Global footprint of free breathing transformer with Natural ester

Rajaram Ramchandra Shinde

Cargill India Pvt. Ltd, India

Effect of maghemite nanoparticles on insulation and cooling behaviour of a natural ester used in power transformers

Cristian Olmo, Cristina Méndez, Inmaculada Fernández, Félix Ortiz, Agustín Santisteban, Alfredo Ortiz

University of Cantabria, Spain

Transient Thermal Condition of Natural Oil-cooled Disc-type Winding

Saeed Khandan Siar, Stefan Tenbohlen

University of Stuttgart, Germany

Analysis on Extending Service Life of Aged Transformers by Oil Replacement with Novel 3-Element Mixed Insulation Oil

Dawei Feng¹, Jian Hao¹, Ruijin Liao¹, Xin Chen¹, Xiong Liu², Tao Yang³

¹Chongqing University, China, People's Republic of; ²State Grid Chongqing Electric Power CO. LTD. Chongqing Electric Power Research Institute, China, People's Republic of; ³State Grid Henan Electric Power CO. LTD. Henan Electric Power Research Institute

In-service ageing comparison study of natural ester and mineral oil filled distribution transformers

Yaohong Zhao¹, Yihua Qian¹, Bin Wei², Ruifeng Wang³, Kevin James Rapp⁴, Yang Xu⁵

¹Guangdong Electric Power Grid Co. Guangzhou, China; ²Xianyang Power Supply Bureau of Shaanxi Power Grid Co., Ltd; ³Cargill, China; ⁴Cargill, Plymouth, MN United States of America; ⁵State Key Lab -Xi'an Jiaotong University, Shaanxi Xi'an, China

The analysis of cellulose particles bridging in natural ester oil under DC voltage

Tao Zhao, Minglin Fan, Nijie Chao, Yunpeng Liu, Zhongyuan Zhang

North China Electric Power University, China

Determination of Epoxy Resin in Transformer Oils by FTIR Method and the Study of Its Damage

Yaohong Zhao, Yihua Qian, Qing Wang, Li Li, Shengping Fan, Qiang Fu

Electric Power Research Institute of Guangdong Power Grid Co., Ltd., China, People's Republic of

Analysis of Water Solubility in natural-ester based nanodielectric fluids.

Daniel Pérez-Rosa, Victor Antonio Primo Cano, Belén García, Juan Carlos Burgos

Universidad Carlos III de Madrid, Spain

Analysis of Particle Size Distribution and Other Parameters of Nanoparticles in Natural Ester Oil

Pavel Totzauer¹, Jozef Kúdelčík², Jaroslav Hornak¹, Ondřej Michal¹, Pavel Trnka¹, Václav Mentlík¹

¹University of West Bohemia, Czech Republic; ²University of Žilina, Slovakia

Impregnation processes of insulation rigid components of cellulose in synthetic ester and mineral oil

Alfredo Ortiz¹, Jaime Sanz¹, Severiano Perez¹, Cristina Fernández-Diego¹, Ernesto Iván Diestre², Ismael Vela²

¹University of Cantabria, Spain; ²Repsol Technology Center, Spain

Investigation on the Compatibility of Transformer Construction Materials with Natural Ester

Yuan Wang¹, Xiaojing Zhang¹, Haichuan Yu¹, Xin Li², Yang Xu¹

¹Xi’an Jiaotong University, China, People's Republic of; ²Electric Power Research Institute of Guangdong Power Grid Corporation, China, People's Republic of

Mobility of Charge Carriers in Dielectric Liquids

Qingjiang Xue Xue, Igor Timoshkin, Mark Wilson, Martin Given, Scott MacGregor

University of Strathclyde, United Kingdom

Interturn insulation characteristics for transformer windings using three ester types under lightning impulse voltage

Katsunori Miyagi¹, Ryoichi Hanaoka¹, Keiichiro Matsushita², Kiyoshi Wakimoto²

¹Kanazawa Institute of Technology, Japan; ²Meidensha Corporation

Study on Bubble Formation of Different Moisture Content Oil-immersed Cardboards in Natural Ester Oil

Nijie Chao, Tao Zhao, Minglin Fan, Yunpeng Liu

North China Electric Power University, China, People's Republic of

Analysing the impact of Moisture on the AC Breakdown Voltage on Natural Ester Based Nanodielectric Fluids

Víctor Antonio Primo Cano, Daniel Pérez Rosa, Belén García, Juan Carlos Burgos

Universidad Carlos III de Madrid, Spain

Synthesis of Trimethylolpropane Esters as Potential Insulating Oil Base Stocks

Feipeng Wang, Kaizheng Wang, Jian Li, Qiuhuang Han, Qi Zhao, Kelin Hu

Chongqing University, China, People's Republic of

Thermal and Dielectric Properties of Processed Mahuva Oil

Ann Pamla Cruze¹, K.S.Lokesh Kaggare²

¹Central Power Research Institute, India; ²JSS Science and Technology University,Mysore,India

Investigation of AC breakdown strength and frequency varied dielectric response of the non-conventional vegetable oil

Mrutyunjay Maharana¹, Niharika Baruah¹, Sisir Kumar Nayak¹, Niranjan Sahoo¹, Manas Chakraborty²

¹IIT Guwahati, India; ²RTL, Central Power Research Institute Guwahati

Moisture Effects on Partial Discharge Inception Voltage in Natural Esters

Emeric Tchamdjio Nkouetcha, Ghislain Mengata Mengounou, Adolphe Moukengue Imano

University of Douala, Cameroon

Temperature Effects on Partial Discharge Inception Voltage in Natural Esters

Emeric Tchamdjio Nkouetcha, Ghislain Mengata Mengounou, Adolphe Moukengue Imano

University of Douala, Cameroon

Behavior of Transformers Interconnecting Microgrid and Prosumers

Francesco Muzi¹, Massimo Pompili², Luigi Calcara², Silvia Sangiovanni²

¹University of L'Aquila; ²University of Roma "La Sapienza", Italy

Life Cycle Management of Natural Esters &Transformers according to IEC Standards: Case History of Envirotemp FR3 Fluid & TransfoClean Solution in Brasil

Vander Tumiatti¹, Kevin Rapp², Shubhen Kapila³, Massimo Pompili⁴, Riccardo Maina¹

¹SEA MARCONI TECHNOLOGIES S.a.s., Italy; ²Cargill Bioindustrial, United States of America; ³University of Missouri, United States of America; ⁴University of Roma "La Sapienza"

Nanoparticle Polarization Effect on the Permittivity of the Dielectric Liquid

Niharika Baruah, Mrutyunjay Maharana, Sujita Srichandana Dey, Sisir Kumar Nayak

Indian Institute of Technology, Guwahati, India

Suppression Mechanism of TiO2 for the Partial Discharge of Oil-paper Insulation in Intensive Electric Field

Daosheng Liu¹, Yajie Wu¹, Xiangdong Xu², Jing Ye¹, Jiachen Li¹, Shangqun Yu³

¹Jiangxi University of Science and Technology, China, People's Republic of; ²Electric Power Engineering, Chalmers University of Technology, Sweden; ³Sanbian SCI-TECH Co. LTD Taizhou, China

Research on DC Breakdown Performance of Nanofluid-impregnated Pressboard Based on TiO2 Nanoparticles

Bingliang Shan, Yupeng Ying, Mingkang Niu, Yang Ge, Meng Huang, Chengrong Li

North China Electric Power University, China, People's Republic of

Streamer simulation in nano-based dielectric fluids at different Fe3O4 nanoparticle concentrations

Johnatan Mauricio Rodríguez-Serna¹, Juan Velasco¹, Ricardo Albarracín-Sánchez¹, Ricardo Frascella¹, Víctor Antonio Primo²

¹Universidad Politécnica de Madrid (UPM) Escuela Técnica Superior de Ingeniería y Diseño Industrial (ETSIDI) Departamento de Ingeniería Eléctrica, Electrónica, Automática y Física Aplicada Ronda de Valencia 3, 28012, Madrid, Spain; ²Universidad Carlos III de Madrid Departamento de Ingeniería Eléctrica Avenida de la Universidad 30, 28911, Leganés, Madrid, Spain

Cooling performance of different dielectric fluids containing nanoparticles in a transformer winding

Agustín Santisteban, Cristian Olmo, Cristina Méndez, Fernando Delgado, Carlos J. Renedo, Félix Ortiz

University of Cantabria, Spain

Insulating and aging properties of transformer oil-based nanofluids

Muhammad Rafiq, Lv Yuzhen, Li Chenrong

NORTH CHINA ELECTRIC POWER UNIVERSITY, China, People's Republic of

Optimization of Mass Fraction and Particle Size of TiO2 Additives in Application of HVDC Transformer Insulation

Daosheng Liu^1,2, Jing Ye¹, Xiangdong Xu², Christopher Garang Deng¹, Xiaofan Li¹

¹Jiangxi University of Science and Technology, China, People's Republic of; ²Electric power engineering, Chalmers university of technology, Sweden

Study on temperature distribution in oil-immersed inverted current transformer

Xiaoping Yang¹, Yiming Wu², Jiansheng Li², Chao Wei², Shengquan Wang², Leifeng Huang³, Bonan Li³, Youyuan Wang³

¹JiangSu Electric Power Company, Nanjing, China; ²Jiangsu Electric Power Company Research Institute, Nanjing, China; ³Chongqing University Chongqing, China

The effect of interface of electrode and liquid on space charge injection in transformer oil under impulse voltage

Yu Zhang¹, Qiulin Chen², Shijun Xie¹, Potao Sun², Chenmeng Zhang¹, Lian Ye², Zhou Mu¹, Wenxia Sima²

¹State Grid Sichuan Electric Power Researche Institute, Chengdu, China, People's Republic of; ²State Key Laboratory of Power Transmission Equipment &SystemSecurity and NewTechnology, Chongqing University, Chongqing, China, People's Republic of

Dielectric Response Analysis of Mineral Oil Immersed Transformer, Natural Ester(FR3) Immersed Transformer, and Palm Oil Immersed Transformer

Sakda Maneerot, Phethai Nimsanong, Kittipod Jaraiyanurat, Norasage Pattanadech, Jompatara Siriworachanyadee, Monthon Leelajindakrairerk

King Mongkut’s Institute of Technology Ladkrabang, Thailand

A study on a high-reliability electromechanical undervoltage relay immersed in natural ester oil: application in mutual aid system for gensets using

Alessandro Ruvio, Stefano Elia, Damiano Bracci

Sapienza University of Rome, Italy

Experimental Study on The Motion Law of Solid Particles in Oil under Electric Field

Bonan Li¹, Leifeng Huang¹, Youyuan Wang¹, Yuanlong Li¹, Chao Wei², Yuncai Lu²

¹Chongqing University, China, People's Republic of; ²Jiangsu Electric Power Company Research Institute, Nanjing, China

Gas Production Characteristics and AC Breakdown of a New Three-element Mixed Insulation Oil

Jian Hao¹, Xin Chen¹, Dawei Feng¹, Xiong Liu², Qian Wang², Chenyu Gao¹

¹Chongqing University, People's Republic of China; ²State Grid Chongqing Electric Power CO. Chongqing Electric Power research institute

The Application of Polyhedral Oligomeric Silsesquioxanes on Vegetable Insulating Oil Modification

Qiuhuang Han, Feipeng Wang, Jian Li, Kaizheng Wang, Qi Zhao, Kelin Hu

Chongqing University, China, People's Republic of

Heat Transfer Characteristics of Environmental-friendly Insulation Gas Mixtures

Youping Tu¹, Geng Chen¹, ShaoCong Wu¹, Cong Wang¹, Yi Cheng¹, Ying Zhang¹, ZhiKang Yuan¹, Wei Liu²

¹North China Electric Power University, China, People's Republic of; ²Anhui Electric Power Research Institiute of SGCC Hefei, China

Compatibility of construction materials used in HVDC Transformer with naphthenic inhibited insulating oil

Umashankar Babuparamashiva, Jagannathan Venkatesan Damal, Yogesh Singh, Ganesh Rajamani

Apar Industuries Limited, India

The Polarization and Depolarization Current Characteristics of Mineral Oil, Natural Ester (FR3), Palm Oil, and Liquid Impregnated Pressboard

Jompatara Siriworachanyadee, Phethai Nimsanong, Sakda Maneerot, Norasage Pattanadech, Prakob Kitchaiya

King Mongkut's Institute of Technology Ladkrabang, Thailand

New Approach to Molded Case Circuit Breakers Maintenance System Using Nanoparticles

Mohammed Shaban¹, Saad Abdelwahab¹, Sobhy Dessouky²

¹Suez University, Egypt; ²Port Said University

AC Breakdown Voltage Behavior of Deionized Water

Mohammad Taghi Imani¹, Peter Werle¹, Frederik Krüger¹, William Hunter²

¹Leibniz Universität Hannover, Institute of Electric Power Systems, Germany; ²Siemens AG Corporate Technology Taufkirchen, Germany

Moisture in power transformers DFR analysis – real cases studies on site

Omar Amirouche

ELMA Servizi Industriali srl, Italy

XEMIS2: A liquid xenon Compton camera to image small animals

Yuwei Zhu¹, Stéphane Acounis¹, Nicolas Beaupère¹, Jean-Luc Beney¹, Julien Bert², Stéphane Bouvier¹, Clotilde Canot¹, Thomas Carlier³, Michel Cherel⁴, Jean-Pierre Cussonneau¹, Sara Diglio¹, Debora Giovagnoli², Jérôme Idier⁵, Françoise Kraeber-Bodéré³, Patrick Le Ray¹, Frédéric Lefèvre¹, Julien Masbou¹, Eric Morteau¹, Jean-Sébastien Stutzmann¹, Dominique Thers¹, Dimitris Visvikis², Yajing Xing¹

¹SUBATECH, IMT Atlantique, CNRS/IN2P3, Université de Nantes, 44307 Nantes, France; ²INSERM, UMR1101, LaTIM, CHRU Morvan, 2 avenue Foch, Brest, 29600, France; ³Centre Hospitalier Universitaire de Nantes, 1 place Alexis-Ricordeau, 44093 Nantes, France; ⁴INSERM U892 équipe 13, 8 quai Moncousu, 44000 Nantes, France; ⁵LS2N, Ecole Centrale de Nantes, CNRS/Inp, Université de Nantes, 44307 Nantes, France

Dielectric Response Analysis of Mineral Oil Immersed Transformer Insulation during Manufacturing Process

Tritod Nganpitak, Phethai Nimsanong, Sakda Maneerot, Norasage Pattanadech

King mongkut's institute of technology ladkrabang, Thailand

Microsecond Break Arcs During or After Commutation of Current in a Hybrid DC Switch

Koichi Yasuoka, Yuta Yamada, Mo Chen, Ryo Nakayama, Shoya Kubo, Shungo Zen

Tokyo Institute of Technology, Japan

DC Characterization of Liquid Silicon Insulation Material

Satish Anandrao Buddhawar¹, Aniket Lewarkar², Armando Rodrigo Mor³, Dennis Bergsma⁴

¹Van Oord ofshore wind projects B.V., Netherlands, The; ²Deme offshore services B.V.; ³Delft university of Technology; ⁴Lovink Enertech B.V.

Extraction and analysis on oil immersed paper's obscured low frequency polarization based on Frequency Domain Spectrum

Jiacheng Xie, Ming Dong, Yizhuo Hu, Guanghao Xu, Xinyi Ma

Xi'an Jiaotong University, China, People's Republic of

Research on the Overheating Fault of HVDC Wall Bushing and its Dignosis Strategies Based on CFD

Huidong Tian¹, Shiyi Zhou¹, Xinyi Ma¹, Chuanyang Li², Jianwei Chen³, Zongren Peng¹

¹Xi'an Jiaotong University, China, People's Republic of China; ²Department of Electrical, Electronic, and Information Engineering University of Bologna; ³Southern Electric Power Research Institute Guangzhou, People’s Republic of China

Effect of Moisture on Low Frequency Relaxation of Oil-Paper Insulation

Yizhuo Hu, Ming Dong, Jiacheng Xie, Guanghao Xu, Ming Ren, Xinyi Ma

State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, China, People's Republic of

Moisture Detection in Transformer Oil Impregnated Paper Using High-Frequency Depolarization Current Measurements

Yazid Hadjadj, Refat Ghunem, Harold Parks

NRC Metrology, National Research Council Canada, Ottawa

FTIR-Spectroscopic and Electrical Analysis of Thermally Stressed Liquid Dielectrics

Graeme Martin Smith, A.S Holmes, S.G McMeekin

Glasgow Caledonian University, United Kingdom

Fault Diagnosis of Power Transformers Based on Comprehensive Machine Learning of Dissolved Gas Analysis

Chenxi Guo, Ming Dong, Zhanyu Wu

Xi'an Jiaotong University, China, People's Republic of

Optical Spectroscopy Analysis of Ester Oils under Thermal Aging Conditions

Abdelrahman M. Alshehawy¹, Diaa-Eldin A. Mansour¹, Mohsen Ghali²

¹Tanta University, Egypt; ²Egypt-Japan University of Science and Technology, Egypt

Comparative Study of Furfural’s Raman Spectroscopy Detection in oil based on two kinds of Extractants

Weiran Zhou¹, Weigen Chen¹, Chengzhi Zhu², Fu Wan¹, Haiyang Shi¹, Jiayi Zhang¹, Shuhua Zhang¹

¹State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University Chongqing, China; ²State Grid Zhejiang Electric Power Company, Zhejiang, China

The History and Significance of the Carbon Oxide Ratio

Paul Randall Cox

GE Grid Solutions, United States of America

Diagnosis of Moisture Content in Oil-immersed Paper Based on Dielectric Loss with Variable Voltage at Power Frequency

Haoxiang Zhao¹, Yang Li¹, Xiaowei Liu², Yanhua Han², Lu Zhang², Jiaye Wen¹, Haibao Mu¹, Guanjun Zhang¹

¹State Key Lab of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an, China; ²State Grid Shaanxi Electric Power Research Institute, Xi’an, China

Reliability Study of Furan Level Analysis for Transformer Health Prediction

Maximilian Meissner^1,2, Martin Darmann¹, Sigurd Schober², Martin Mittelbach², Christof Sumereder³

¹VUM Verfahren Umwelt Management GmbH, Austria; ²University of Graz, Austria; ³FH Joanneum GmbH, Austria

A SERS Substrate For Detecting Methanol In Transformer Oil

Shuhua Zhang¹, Weigen Chen¹, Haiyang Shi¹, Fu Wan¹, Weiran Zhou¹, Jiayi Zhang¹, Chengzhi Zhu²

¹State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China; ²State Grid Zhejiang Electric Power Company

Effect of molecular structures of insulating oil on Stray Gassing

Hiroko Tomita, Takashi Ito

JXTG Nippon Oil and Energy Corporation, Japan

Research on Transformer Oil Multi-frequency Ultrasonic Monitoring Technology Based on Convolutional Neural Network

Yaohong Zhao, Yihua Qian, Li Li, Zhong Zheng, Qi Wang, Yuan Zhou

Electric Power Research Institute of Guangdong Power Grid Co., Ltd., China, People's Republic of

Study on Quantitative Analysis Method of Methanol Raman Spectra in Oil By Extraction Technology

Jiayi Zhang¹, Weigen Chen¹, Fu Wan¹, Haiyang Shi¹, Weiran Zhou¹, Shuhua Zhang¹, Chengzhi Zhu²

¹State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University; ²State Grid Zhejiang Electric Power Company, Zhejiang

Pollution Degree Detection of Insulators based on Hyperspectral Imaging Technology

Changjie Xia, Ming Ren, Siyun Wang, Bin Wang, Jiacheng Xie, Ran Duan

Xi'an Jiaotong University, People's Republic of China

Toward an optical monitoring of chemical markers in transformers insulating oil

Letizia De Maria¹, Fabio Scatiggio², Nunzio Cennamo³, Luigi Zeni³, Maria Pesavento⁴

¹RSE,Dipartimento Tecnologie Trasmissione e Distribuzione, Italy; ²TERNA, Direzione Ingegneria,Italy; ³Università della Campania, Luigi Vanvitelli, Dipartimento Ingegneria, Italy; ⁴Università di Pavia, Dipartimento Chimica

Advances in Measuring Partial Discharge in Insulating Liquids

Britta Pfeiffer¹, Thomas Renaudin¹, Till Welfonder¹, Luigi Calcara², Silvia Sangiovanni², Massimo Pompili²

¹Omicron Electronics, France; ²University of Roma "La Sapienza", Italy