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the XlVth International Symposiumon High \^HV^e^gWeArftgTsinghua University, Beijing, China, August 25-29, 2005

Edited byGuan Zhicheng

Organized by

/SK Department of Electrical EngineeringXsjnqhua UniversityWmv firariuate School at Shenzhen ^ JGraduate School at Shenzhen

Supported by

ifcifpt International Council on Large Electric Systems

^HEEE Institute of Electrical and Electronics Engineers

Dielectrics and Electrical Insulation Society

J&t*. National Natural Science Foundation of ChinaNSFC

Chinese Society for Electrical Engineering

rrfs* Cnina Electrotechnical Society

liiJKl State Grid Corporation of China

China Southern Power Grid

ilm North China Grid Company Limited (NCGC)

TECHNISCHE '

INFORMATIONSBIBLIOTHEK

UNIVERSITATSBIBLIQTHEKHANNOVER

TSINGHUA UINVERSITY PRESS

Proceedings of the XlVth International Symposium on High Voltage EngineeringTsinghua University, Beijing, China, August 25-29, 2005

Table of contents

Keynote Papers

K-01 Development of Ultra High Voltage Transmission Technology in China 1

Yinbiao Shu

K-02 Lightning Protection of Overhead Power Distribution Lines 2

Shigeru YokoyamaK-03 Advantage of HVDC transmission at 800 kV 3

I Gimnar Asplund, Urban Astrom, and Dong Wu

K-04 Space Charge in Solid Dielectrics 4

G. Chen

K-05 Trends in PD-diagnostics for asset management of ageing HV Infrastructures 5

Johan J. Smit

Session A: Electromagnetic fields; computation, measurement, environmental effects

A-01 Influence of Alumina Surface Roughness and Electric Field Distribution on Charging 7

Characteristics in Vacuum

H. Okitbo, K. Usui, K. Kato, A. Morita

A-02 An Approach to the Better Understanding of the Experimental Setup for the Verification of 8

the ESD Generators

G. P. Fotis, I. F. Gonos and I. A. Stathopulos

A-03 SUMER Software: HF Transformer Equivalent Circuit for Network and FRA analysis 9

Olivier Moreau, Yves Guillot, Guy Dos Santos

A-04 Verification Of Electromagnetic Field Measurements 10

M. Mann, H. Briiggemeyer, B. Gutheil, K. Gloser, P. WeifiA-05 Optimization of High Voltage Power Transformer Design Using Genetic Algorithms 11

Kristjan Markusson, Waldemar Ziomek, Edmund KujfelA-06 Modelling of Currents on All-Dielectric Cables on HV Overhead Lines 12

SM Rowland, I Cotton, KKopsidas

A-07 The Whole Design ofA 3-stage Reconnection Electromagnetic Launcher 13

Zhao Chun, LiXiaopeng, ZouJiyan, BaiXinglin and Wang YufengA-08 Electric and Magnetic Field Analysis in Live Maintenance, Using High Potential Method and 14

from Distance Method, Based on Computer Simulation and Measurement Results

Zbigniew NADOLNY, Tadeusz NOWACKI, Aleksandra RAKOWSKA

A-09 Application of Analytical and Numerical Methods to Evaluate Induced Currents in Human 15

Bodies by Elf Magnetic Fields

ShaherA. Mahmoud, A. H. Hamza, Nagat M. Abdel-Gawad, Samy M, Ghania

A-10 Measurement of Field Distribution in a ID Model of a Cable Termination Comparison with 16

Analytical and Numerical Model

Francois Buret, Thierry Toledo, Philippe Auriol, Lorrene Bayon and Christian Koeblin

A-11 EMTP Analysis of Impulse Voltage Generator Circuit 17

Zhao Gang, Zang Xuyun

A-12 Study on Effects of Pulsed Magnetic Fields on Proliferation and Differentiation of an 18

Osteoblast-Like Cell Line (SaOS-2)

Mao Jing, Guan Zhicheng, Zhang Yaou, Lv Qing, Yang Xiaowei


A-13 Research on Integrated Electro-optic Sensor for Intensive Electric Field Measurement 19

Chen Weiyuan, ZengRong, Liang Xidong, HeJinliangA-14 Calculation of Short-Circuit Impedance for Power Transformer with Coupling FEM 20

Method of Magnetic Field and Circuit

Wang Shishan, Liu Zeyuan and Li Yanming

A-15 Parallel Computation for an Electric Field Optimization of the Power Cable Joint 21

Daigo Yonetsu, Takehisa Hara, Shigeki Shimada and Mikio KajiA-16 AC Resistance and Eddy Current Losses in Cable Transformer Winding 22

Liang Yongchun, Meng Fanfeng, Li YanmingA-17 Application of the FDTD Method to the Simulation of Lightning Induced Voltages on 23

Distribution Lines

A. Tatematsu, T. Noda, and S. YokoyamaA-18 Modeling Inaccuracies from Simulators for HV Polymer Bushings 24

Sizwe Dhlamini, Tshilidzi Marwala & John van Coller

A-19 The Electromagnetic-Wave Output Characteristics for SI-Gaas Photoconductive Switches at 25

High Bias Electric Field

Shi Wei, ZhangXianBin, Dou HongQiang, Yuan WeiQing and Chen YingLiA-20 Effects ofMagnetic Field on Dielectric Breakdown under High Electrical Field 26

B.X. Du, N. Chen

A-21 The Application of Element-free Method in the Calculation of Electric Field of Self-energy 27

SF(j Circuit Breaker Chamber

Cui Yan, Liu JianXin, Ding QiaoLin and Zhao JunChao

A-22 Electrical Field Analysis in the Investigation of the AC 500kV Flashover during Live Line 28

Work

P. Wang, P. Wilson, M. R. Raghuveer, K. Hesse, D. Bestvater, B. Frost, J.Hu

A-23 Numerical Calculation of Induced Currents in Human Model Exposed to Intermediate 29

Frequency Magnetic Fields Generated by Household Induction Heater

Hiroo Tarao, Yasuhiro Ando, Shinya Takaichi, Noriyuki Hayashi and Katsuo Isaka

A-24 Electromagnetic Field Analysis in Wind Power Station by Method of Moment 30

Masato linuma, Shohei Koto, Kunitaka Mizobe

A-25 Practical Experience with Mitigation of Magnetic Fields from Electric Traction 31

P.A.A.F. Wouters, P.C.Tvan derLaan

A-26 Lightning Current Distribution inside of Directly Hit Building 32

Satoru Miyazaki and Masaru Ishii

A-27 Triplen Harmonic Influence on Magnetic Fields Near Three Phase Distribution Feeders 33

Rabah AZOUAOU

A-28 Fundamental Study of Magnetically Induced Current in Human Body on Power-Line 34

Frequency Magnetic Field

Junichi Hashimoto, Katsuo Okumura

A-29 Measurement of Magnetic Fields of Electric Power Lines and Substations 35

R.S. Shivakumara Aradhya, R.Arunjothi, P.Rajendra, B.Krishna, D.Devendranath and

B.Gunasekaran,

A-30 Biochemical Effects of Power Frequency Electrical Fields (5, 10 and 15kV/M) on in Vivo 36

Biological ModelsRachel Jacob, R.S.SAradhya, Arunjothi, D.Devendranath, B.Gunasekaran, R.B.Shashidhar,

C.SubramanyamA-31 Social Expense of Extremely Low Frequency Electric and Magnetic Field 37

Jeong-Boo Kim, Dong-ll Lee, Sung-Doo Lee, Koo-Yong Shin

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Proceedings of the XlVth International Symposium on High Voltage EngineeringTsinghua University, Beijing, China, August 25-29,2005

A-32 Subchronic Biochemical Studies on Rodent Models Exposed to Power Frequency Magnetic 38

Fields

P.Rajendra, R.B.Sashidhar, C.Subramanyam, D.Devendranath, B. Gunasekaran, RSSAradhya,A.Bhaskaran

A-33 Biological Effects ofPower Frequency Magnetic Fields: A Holistic Approach 39

P.Rajendra, R.B.Sashidhar, C.Subramanyam, D.Devendranath, B.Gunasekaran, R.S.S.Aradhya,

A.K.Tripaty

A-34 Simulation of Electric Field Distribution of Composite Insulator 40

Fan YaDong, Wen XiShan and Zhang FiYu

A-35 A New Approach to Solve the Maxwell Equation Based on Hypercomplex Function 41

Bian XingMing, ZengXiang, Huang FeiRan and Wen YuanFangA-36 Characteristic of Transient Voltage Distribution in the Outer Semiconducting Layer and 42

Circuit Model of XLPE Cable Windings

Mou Lei, WangXiaoming, Lu Liang, Liu Jiaqi andLi YanmingA-37 Analysis of the Influence of the Grounding Material's Property on the Performance of 43

Grounding Grids in Frequency Domain

Bo Zhang, Xiang Cui, Jinliang He, Jun Zou, Rong Zeng

A-38 Analysis of Effect of Sea on the Ground Surface Potential Distribution Caused by HVDC 44

System

Jie Zhao, Bo Zhang, Fan Chen, Rong Zeng, Jinliang He

A-39 Numerical Simulation of Negative Corona in a Coaxial Cylindrical Arrangement 45

Liliana Arevalo G., Marley Becerra and Francisco Roman

A-40 Numerical Simulation of the Positive Corona Current Behavior 46

Liliana Arevalol, Marley Becerra, Francisco Roman

A-41 The Selective Effect of Step Field on Cells with the Resistor-Capacitor Circuit Model 47

Xu Fei, Xiao DengMing, Liang Zhen

A-42 Effects of Extremely Low Frequency Oscillating Electromagnetic Field on Biological Cells 48

Huang LingZhen, Dong Liang, Xiao DengMing, Qin SonglinA-43 The Data Correction of Dielectric Spectroscopy in Testing the Solution of Infectious 49

Bronchitis Virus

Liang Zhen, Xiao Dengming, Xu Fei

A-44 Calculation of Electric Potential Distribution of Power Dispatching Building during 50

Substation Earth Faults

Zheng Gang, Zhou HuBing, Zhou WenJun, Rao ZhangQuan, Yu Jun, WangJianGuo andHu Yu

A-45 Characteristic of Electric and Magnetic Field in the Vicinity of Quadruple Electric Power 51

Line

Hussein Ahmad, Noor Azlinda Ahmad, Jambak, M.I., Tumiran

A-46 Electrical Field Distribution in DC Cable Insulations-A New Approach 52

Chang Fanggao and Li TiepanA-41 A New Mathematical Model for Evaluating Breakdown in Solid Insulations under Impulse 53

Conditions

0. E. Gouda, A. Thabet M., H. H. El-TamalyA-48 A New Mathematical Model for Water Treeing in Solid Insulations 54

0. E. Gouda, H. H. El-Tamaly, A. Thabet M.

A-49 Evaluation of the Lightning Protection Zone by Single and Dual Franklin Rods Based on 55

Experimental Studies and Geometric ModelingS. Grzybowski, Y. Song

A-50 Design of Charts for Ground Resistance Calculations of Driven Rods System in Uniform and 56

Non-Uniform Soils

in

Proceedings ofthe XlVth International Symposium on High Voltage Engineering

Tsinghua University, Beijing, China, August 25-29, 2005

O.E. Gouda, G. M.Amer and T. M.EL-Saied

A-51 Analysis of Electric Field and Voltage Distributions on Zno Surge Arrester for Polluted 57

Condition

B. VahidiR. Shariati Nasab J.S.MoghaniA-52 Computational Approach on the Current Interruption Phenomena in Small GCB 58

Young-Kil Choi

A-53 Finite Element Calculation on Electric Field of Composite Insulator Used in 330kV 59

Compacted Transmission Line

Yu Peng, Peng ZongRen, Cao Li, Liu Peng and Zhu PuXuan

Session B: Transients and EMC; lightning, switching, repetitive transients

B-01 Effect of Impulse Voltage Striking Location in A Line on the Behavior of A Lightning 61

Arrester- an EMTP Simulation

S. Rengarajan and K. V. S. Prasad

B-02 Discussion on the Equipotential Bonding in Buildings Considering the Situation of A Direct 62

Lightning Stroke

Wu Bin, Zhu Yudong, Zhang Dong andFu ZhengcaiB-03 A New Approach for the Calculation of Tower Surge Impedance Using a Hybrid 63

Field-Transmission Line TechniqueN. Harid, H Griffiths andA. Haddad

B-04 Application and Comparison of Several Artificial Neural Networks for Evaluating the 64

Lightning Performance of High Voltage Transmission Lines

L. Ekonomou, I.F. Gonos and LA. StathopulosB-05 Simulation of Lightning Stroke Overvoltages on HVDC Transmission Lines 65

Hua Li, Fuchang Lin, Junjia He, Huisheng Ye

B-06 Common Mode Current Distribution in an Installation Caused by Distant Lightning Strike 66

H.T. Steenstra, S. Meijer and J. J. Smit

B-07 Gene Transfer in Soil Induced by Lightning 67

Francois Buret, Helene Ceremonie, Philippe Auriol, Sandrine Demaneche, Timothy M Vogel and

Pascal Simonet

B-08 Analysis of Lightning Impulse Voltage with Overshoot 68

Yi Li andJuris RungisB-09 Influence of Mutual Inductance between HV and LV Windings on Transferred Overvoltages 69

Mohammad Hossein Nazemi and G.B. GharehpetianB-10 Full Voltage Starting Overvoltages Simulation of Back-to-back HVDC System with Short 70

Transmission Lines

Fit Zhengcai, Mao Jianj'eng, Yu Cunyi, Kitipon Chuangaroon, Amonrdej Viryasin, and Udom

JirakajoncharijkunB-ll Calculation ofthe Transient Behavior of a 500kV HVDC Voltage Transducer 71

Zhao Youbin, Wen KaichengB-12 Methods of Energy Computation in ZnO Surge Arrester 72

George R. S. Lira, Edson G. Costa, Damdsio Fernandes Jr, Marcelo J. A. Maia

B-13 Frequency Response of Grounding System of Wind Turbine Generators 73

V.T. Kontargyri, I.F. Gonos andLA. StathopulosB-14 Influence of Different Factors on Current Division Factor for Grounding System Design 74

Jingjing Wang, Jun Zou andJinliang He, JialongXu, Chunyan SongB-15 Practical Issues with the Measurement of Earth Impedance at Transmission Tower Bases 75

N. Harid, H Griffiths andA. Haddad

IV


B-16 A New Method for Measuring Impulse Grounding Resistance 76

Liu Dichen, PanXiaojie, Zhang Yunjian, Zou Jiangfeng, DangJieB-17 Effect of the Auxiliary Electrode Location on Measured Potential Profdes at Large 77

Substations

HZhao, H Griffiths, A Haddad, A Ainsley, FAinslie andD. Frame

B-18 Error in the Step and Touch Voltage Measurements at Large Substations 78

HZhao, H Griffiths, A Haddad, A Ainsley andFAinslie

B-19 Impact of Earthing Topologies on Stray Current Performance of a DC Mass Transit System 79

Charalambos Charalambous & Ian Cotton

B-20 A 3-D Numerical Model of Negative Lightning Leader Interception New Applications to 80

Lightning Protection DesignS. A'it-Amar, G- Berger

B-21 Influence of Dielectric Barrier and Electrode on Atmospheric Pressure Glow Discharge 81

Ruili Ma, Haiyun Luo andXinxin WangB-22 Design of A 500KV Outdoor Test Line for the Study of High Frequency Noise Generated by 82

Corona

N.M. MOYO, N.MIjumba, A.CBritten

B-23 A Novel Waveshape Improvement Technique for Lightning Impulse Voltage Testing on 83

Large Power Transformers

B.Karthikeyan, R.Rqjesh, T.LavanyaB-24 Study on Effects of DC Current on Transformers during HVDC Systems Operated in 84

Ground-return Mode

Liu Qu, Zheng Jianchao, Li LichengB-25 Research on Computing the Direct Lightning Strike Trip Rate in Overhead Transmission 85

Lines

Zhao Lianqing

B-26 Observational Results of Lightning Flashes on the Nikaho-Kogen Wind Farm in Winter 86

(2003-2004)Atsushi Wada, Shigeru Yokoyama, Kazuo Hachiya, Taichi Hirose

B-21 A Countermeasure of Simultaneous Double Circuit Trip of 154 kV Transmission Line by 87

Lightning Current

Joosik Kwak, Yeonwook Rang, Dongjin Kweon, Eung bo, Shim andJeong boo Kim

B-28 Study on Characteristics ofLightning Flashover on Overhead Distribution Line 88

Kenji Yamamoto, Zen-ichiro Kawasaki, Shozo Sekioka

B-29 A Transducer for Lightning Current Measurement 89

Antonia Navarro, Silverio Visacro, Jose Silvino and Rodrigo Hostt

B-30 ANN with Rprop Learning Algorithm Applied to Modeling of Flashover Voltage 90

Characteristics of Airgaps Obtained by Various Gap Geometries

Haritha Bai. K, Devendranath. D

B-31 Lightning location System and GPS 91

Zhao Wenguang, Nie Zhiping, Wang Hua, Zhang Ping, Wu Weining, WuXia, Wen Yinping

B-32 Applicability of Different Implementations of K-factor Filtering Schemes for the Revision of 92

IEC60060-1 and -2

J. Flallstrom, S. Berlijn, M. Gamlin, F. Garnacho, E. Gockenbach, T. Kato, Y. Li, J. Rungis

B-33 Fast Transient Process in Generator During Interrupted Arcing Ground-Faults in 93

Generator Stator Windings-Influence of Breakdown Channel Resistance

MarekFulczyk, Wojciech Piasecki

B-34 Simulation of Transient Sheath Overvoltages in Cross-bonded Cable System 94

v

Proceedings ofthe XlVth International Symposium on High Voltage EngineeringTsinghua University, Beijing, China, August 25-29, 2005

Shumin Chen, Jiangbo Jia, Liandian Yang, Lanjun Yang, Qiaogen ZhangB-35 Voltage Distribution within the Transformer Windings Subjected to Very Fast Transient 95

Overvoltages

D.S. Pinche, M.A. Al-Tai andS.B. Tennakoon

B-36 Assessment of Causes and Possibilities for Preventing Frequent Conductor Damages on 96

20 kV Overhead Lines Equipped with Covered Conductors

Males Babuder, Stane Vizintin, Zvonko Toros, Joze Pihler

B-37 Study of Distributed Overvoltage On-Line Monitoring System Based on Virtual Instrument 97

Zhang Lin, Guan Genzhi and Zhang Kai

B-38 Arc Overvoltages in 10 kV Networks with Resistance-Grounded Neutral Conductor 98

Brzhezitslcy V. A., Iljenko I. O., Iljenko 0. S., Nagorniy P. £>., Masluchenko I. N. and Trotsenko E.

A.

B-39 Ferroresonant Overvoltages in the Power Transmission Systems 99

Josef Tlusty, Jan Kyncl, Petr Kubin, Jan Svec, Viktor Valouch

B-40 Surge Characteristics Analysis of Pole in Distribution Line by Method of Moment 100

Md. Solaiman and Shohei Kato

B-41 The Influence of High Frequency Overvoltages on Current Transformers 101

A.G. Ovsyannikov, A.A. TsarikovskyB-42 Simulation Analysis on Shunt Capacitor Switching Transients Protection in Electricl 102

Distribution System

Zhang Bo, Lu Tiecheng, Wang Wendai

B-43 The Effect of the Secondary Loads on the Voltage Surges Transferred through Distribution 103

Transformers

MohamedA. Abdallah

B-44 Investigation of PD-Pulse Propagation and Coupling between Three Phases of a Stator of a 104

Rotating Machine

W. Kalkner, A. Obralic, M. Kaufhold andR. Plath

B-45 Estimation of Suppressing Very Fast Transient Overvoltage in GIS by Magnetic Rings 105

Xiang Zutao, Liu Weidong, Qian Jiali, Guan Yonggang, Zhang Yalin, Shen Yuzhang, Wang ShupingB-46 The Distance Inspection of Oil-Field High-Voltage Equipment by Means Of Electromagnetic 106

Radiation

V. Lavrov

B-47 A Novel Hybrid Fault Location Sensor Employable to the Overhead Ground Wire of Power 107

Transmission Lines

Yong-Moo Chang, Sung-IlKim, Ja-Yoon Koo, Jun-Ho Lee

B-48 Improved Compensation Method to Online Monitor Resistive Leakage Current of MOA and 108

Its Application

Wang Yongqiang, Lu Fangcheng, Li HemingB-49 Numerical Modelling of Metal Oxide Varistors 109

Boris Zitnik, Maks Babuder, Michael Muhr, Mihael Zitnik and Rajeev ThottappillilB-50 Reduction of Switching Transients by Using Surge Arrestors in the Operation of Induction 110

Motor Drives

M.Venu Gopala Rao, Syed. A. Naveed, J.Amaranath, S.Kamakshaiah and B.P.Singh

B-51 Evaluation of Lightning Arresters From the Cpfl Technical Reserve by Means of Laboratory 111

Tests: an Experience of Success

Fldvio Bittencourt Barbosa, Joao Carlos Carneiro

B-52 Consideration of Application Number of Surge Arresters for 66-500kV Power 112

Systems in Japan

VI


Shingo Shirakawa, Takayuki Kobayashi, Hiroshi Tanae, TadashiTakamalsu Toshiya Kumai,

Hajime Imura, Seisuke Nishimura

B-53 Leakage Currents Flowing through ZnO Elements under Combined Alternating and Direct 113

VoltagesBok-Hee Lee, Sung-Man Rang, Young-Hwan Baek, Chang-Hwan Ahn and Chong-Ho Yi

B-54 Intelligent Detection and Diagnosis of Surge Arresters Faults Using Neural Network 114

Techniques

Helvio J. A. Martins, Rodolfo J. Torres, Carlos A. Lawentys, Sinval T. Nascimento, Walmir M.

Caminhas andAntonio P. BragaB-55 The SPD Coordination Experiment of 0.5|aS-100khz Waves 115

Li qingquan, Zou Liang, Xie Jianmin

B-56 Analysis of Transient Response of Grounding System Based on Moment Method 116

Satoru Miyazaki and Masaru Ishii

B-57 The Optimum Design of Grounding Grid of Large Substation 117

Du Zhongdong, Yao Zhenyu, Wen Xishan, Xu Hua

B-58 A New Method for Earthing Impedance Measurement of Large Grounding Grids of Electric 118

Power Substations and Plants

Li Rubiao

B-59 Space Charge Behavior in Three Kinds of Polyethylene with Evaporated Electrode under 119

Ultra-High Electric Field

K. Matsui, A. Miyawaki, H. Aoyama, Y. Tanaka, T. Takada, T. Maeno andR. Liu

B-60 Simulation of the Corona Discharge at the Tip of the Lightning Rod under Low and Fast 120

Variations of the External Electric Field

Abderrahim. Bedja, Philippe. Auriol, Francois. Buret, Odile. Fulchiron, Yannick. Henaff Alain.

Rousseau

B-61 The Effect of the Space Charge on the Initiation of a Connecting Leader 121

A. Bedja, P. Auriol, F Buret, O. Fulchiron, Y. Henaff, A. Rousseau

B-62 A Computational Estimation of the Breakdown Voltage ofa Small Rod-Plane Gap 122

Christos P. Stamatelatos, Vassilios P. Charalambakos, Demosthenes P. Agoris and Alexander L.

Kupershtokh

B-63 The Simulation Model of Transformer Winding for Very Fast Transient based On 123

Quasi-Stationary Electromagnetic Field

Hit Jinxing, Chen Weigen

B-64 The Analysis of Secondary Arc Suppression by High Speed Earthing Switch 124

Lin Xin, He Baina, Xu Jianyuan

B-65 Simulation of Disconnect Switch Operation of Air Insulated Substation 125

Jinsong Tao, Shixiu Chen, Chao Yang

B-66 High Impedance Passive Impulse Voltage Attenuator for 4 kV and 4 ns 126

A. MannikojfandA. Bergman

B-67 Experiments on Electric Field Distortion Switches 127

Gong Rongqiang, Zou Xiaobing, Li Peng, Zeng Naigong, Han Min and WangXinxin

B-68 A Test Study of 50- Lightning Impulse Breakdown Voltage on Rod-Plane Gap with 128

Two-Phase Mixture of Gas and Solid Particles

Xu Huaili, Yu Fusheng, He Zhenghao andLi Jin

B-69 A System of Automatic Impulse Current Generators for ZnO Voltage-sensitive Element 129

Tests

Chen Lidong, Han Min, Linyi, Guo yan

B-70 Feasibility Analysis of Resistor to Restrain the DC Earth Current Flowing into Transformer 130

VII

Proceedings of the XlVth International Symposium on High Voltage Engineering


Niu Ben, Zhang Bo, Zeng RongB-71 Research of Single-phase Grounding Fault Protection in Low-resistance Grounding System 131

Xia Tian

B-72 Study on Optimization of HVDC Ring Ground Electrode System 132

Cao Lin, Zhao Jie, Zeng Rong, He Jinliang

B-73 Analysis of Effectiveness of Inserting a Resistor at Transformer's Neutral Point on 133

Reduction of The DC Ground Current Flowing into the Transformer

Jie Zhao, Bo Zhang, Ben Niu, Rong Zeng, Jinliang He

B-74 Television Interference from EHV Power Lines 134

Yang Yingjian, Zhou Wenjun and Wu Xiong

B-75 Lightning Performance Analysis of Four-Circuit 500kV Transmission Line Based on 135

EMTDC-Embedded Model of Insulators

Rong Zeng, Ben Niu, Jinliang He

B-76 The Complete Electric Field of Multi-circuit Transmission Line Over the Earth 136

Liu YuanQing, Zou Jun

B-77 A Study on Grounding Grid Voltage Transient Characteristics Due to Lightning 137

M. Nayel, B. Kanatani, A. Ametani, Jinliang He

B-78 Load Range Extension Methods for Lightning Impulse Testing With High Voltage Impulse 138

Generators

Klaus Schwenk, Michael Gamlin

B-79 Implementation of the K-Factor for the Lightning Impulse Evaluation By Means of Digital 139

FIR Filtering

Michael Gamlin

B-80 Analysis of the 6kV System Overvoltage Caused by the Input of the 35kV Vacuum Circuit 140

Breaker

ZhiQiu Li, Yulong Huang, Jiali Qian

B-81 Development of Intelligent Controlling and Driving Device for Monostable Permanent 141

Magnetic Operating Mechanism

Sun Jianjun, Xu Jianyuan and Zhao Hongqiang

B-82 Comparison of Calculated and Correlated Lightning Incidences in MVNetwork 142

Janko Kosmac, Vlado Djurica, Zvonko Toros, Milos Protic, Bogo Jelenc

B-83 Lightning Caused Damages on OPGW 143

Janko Kosmac, Vlado Djurica, Bostjan Barl, Srecko Lesjak, Martin Bizjak

B-84 Measuring the Absolute Transient Voltage of a Real Earth Electrode 144

K J. Nixon, A. J. Phillips and I. R. Jandrell

B-85 Integrative Preventive Measures against Break of OPGW Strands Caused by Lightening 145

Hu Yi, Wang LiNong, Liu Kai, Ye Tinglu, Wang FengB-86 The Lightning Location System Application in China 146

Wu Weining, Zhao Wenguang, WangHua, Nie Zhiping, Zhang Ping, Wu Xia, Wen Yinping

B-87 Discussion on Grounding System Design of Grounding Grid in Seasonal Frozen Soil 147

ZhuangZuo, Jinliang He

B-88 The Study and the Development of Metal Oxide Arresters without Gaps for 750kV Power 148

System

He Jimou, Zhu Bing, Zhang Hongtao, Zhu Jiaxi, Jin Qiang and Du Shaohin

B-89 Development of Station Type Polymeric metal oxide Surge Arrester for 500kV a.c. Systems 149

Wang XingXia, Zhu Bing, Weng LiMing

B-90 The MoM-BEM Analysis of Grounding Systems in Soils with Finite Volumes of Different 150

Resistivities

VIII


Tsinghua University, Beijing, China, August 25-29,2005

Chen Fan, Zhang Bo and He JinliangB-91 Effects ofVFTO on Power Transformers 151

Shuiming Chen, Yi. Shen, Jinliang He

B-92 MO-Surge Arresters with Silicon Housing for AC and DC Applications in Railway Systems 152

BernhardRichter, Alexander Bernhard

B-93 Lightning Research in Saudi Arabia; Establishment of Iskraunic Level Maps 153

M. H. Shwehdi

B-94 Lightning Return Stroke to a Farm: Measurements and Simulations Using a Reduced Scale 154

Model

J. -L. Bermudez, H. Sauvain, F. Rachidi, M. Jolliet, B. Daout

Session C: Emerging HV technologies, advanced materials and interfacial phenomena

C-01 High Pressure N2, N2/C02 and C02 Gas Insulation In Comparison to SF6 in GIS 155

ApplicationsK. Juhre andE. Kynast

C-02 Flashover Characteristics of a Long Solid Insulator in Vacuum 156

Osamu Yamamoto, Takehiro Satoh, Yasutaka Hayashi, Shoji Hamada, Tetsuo Kobayashi,

Hiroshi Omura, Hiroshi Morii

C-03 Atmospheric Pressure Plasma in Micro Channels 157

Arkadiusz Dziubek, Frank Gerdinand, Michael Kurrat

C-04 Pre-ionization Technology for Atmospheric Pressure Uniform Glow Discharge in Air 158

Zhan Huamao, Ding Lijian, Li Chengrong, Li Ming and Yao Jisha

C-05 Viscosity Estimation of Unimodal/Bimodal Alumina-Epoxy Mixture for Fabricating New 159

Insulation Materials of FGM by a Centrifugal Method

Wibowo Sulistio, Noriyuki Hayashi, Shin-ichiro Tsuru, Masanori Hara

C-06 Influences of Magnitude and Direction of the Air Flow Rate on Production of Nitric Oxide 160

Using Pulsed Arc Discharge for Medical Applications

Hu Hui, Li Jin, Zhao Quanzhong, He Junjia, Wang Shuxia andBai Ming

C-07 Long Term Performance under High Voltage of Mineralic Filled and Fiber-Reinforced 161

Epoxy Insulators Used in GIS

K Juhre andE. Kynast

C-08 Sparkover Mechanism of C02 Gas Discussed by Simultaneous Measurement of PD Current 162

and Light Emission under AC Voltage Application

Shinya Ohtsuka, Kazuharu Kiyama, Nobuhiko Yokoyama, Shuhei Kaneko, Shigemitsu Okabe and

Masayuki Hikita

C-09 Erosion Behaviour of Nano Filled Silicone Elastomers 163

Stephanie Rdtzke, JosefKindersberger

C-10 Dielectric Strength of Aged Transformer Oils: Experimental Studies and Statistical Analysis 164

of Breakdown Voltage

H. -Z. Ding, Z. D. Wang, and P. Jarman

C-11 The Use of Natural and Synthetic Ester-Based Transformer Oils in Power Transformers 165

D. Martin, Z. D. Wang, I. Cotton

C-12 The Effect of Power Supply Polarity on The Morphology of Electrospun Nanofibers and 166

Textiles

Yang Ying, Jia Zhidong,Li Qiang.Guan Zhicheng

C-13 A Computational Approach on the Estimation of the Streamer Velocity 167

Vassilios Charalambakos, Demosthenes Agoris, Christos Stamatellatos and Eleutheria Pyrgioti

C-14 Effect of In-situ Annealing on Flashover Properties of Commercial Alumina Ceramics in 168

IX


Vacuum

Tumiran, Suharyanto, Yasushi Yamano, Shinichi Kobayashi and Yoshio Saito

C-15 Investigation on the Intensity Attenuation Speed of the Single-Charged Ionized Vapor and 169

Neutral Vapor at Current Chopping in Vacuum Arc

C. Ding, T. Yamamoto and S. Yanabu

C-16 Magnetic Switch Based Design of High-Voltage and High-Frequency Pulse Sharpening 170

Circuit

Yang Ping, Wen Yuanfang, Hu Xiwei, Ye Caiyong Jia JianpingC-17 Investigation of Discharge Characteristic for Diagnosis of Degree of Vacuum in Glass Type 171

Vacuum Interrupter

Mohamad Kamarol, Shinya Ohtsuka, Hitoshi Saitou, Masayuki Sakaki and Masayuki Hikita

C-18 Difference in Property of Functionally Graded AIumina/Epoxy Composite Fabricated by a 172

Centrifugal Method Using Various Alumina Fillers

Noriyuki Hayashi, Tomohiko Onoda, Shin-ichiro Tsuru, Wibowo Sulistio, Masanori Hara

C-19 Quantification of Interaction between ELF Magnetic Fields and Human Body Organs in the 173

Proximity of Power Lines

M. A. Abd-Allah

C-20 Creation of a Low Reflectance Black Surface by Electrostatic Flocking with Carbon Fiber 174

Pile

Yasuo Sekii, Shoichi Hasegawa, Tsutomu Isaka, Tomonao HayashiC-21 Investigation of Electrical Breakdown Characteristics in Liquid Nitrogen for the Insulation 175

Design of HTSFCL

Bok-Yeol Seok, Chanjoo Lee, Tae-KukKo andSang-Hyun Kim

C-22 The Partial Discharges Location in Power Transformers by Laser Surface Scanning 176

Vladimir M. Tolchin

C-23 Difference in Deposition Rate and Film Property by Irradiation 177

Conditions of Laser Beam at Pulsed Laser Deposition

Tomoyuki Fujishima, Takahiko Yamashita andHisao Matsuo

C-24 Ozone and NO Generation Using High Frequency Dielectric Barrier Discharge 178

Tomoyuki Fujishima, Masahiro Takayama, Takahiko Yamashita, Hisao Matsuo, Tomoaki lkegamiandKenji Ebihara

C-25 Investigation of High Voltage Sub-nanosecond Electrical Pulses Generation by GaAs 179

Photoconductive Switches

Shi Wei, Sun Yu, Tao Liang, Li MengXia

C-26 Dielectric-Coating Effect in C02 and SF6 Gases under Impulse Voltage Application 180

Naoki Hayakawa, Naoto Koshino, Osamu Kinoshita, Hiroki Kojima, Fumihiro Endo, Masanobu

Yoshida, Toshiaki Ueda, Hitoshi Okubo

C-21 Influence of Water Immersion on Partial Discharge Breakdown Mechanism and Lifetime of 181

Filled Epoxies

M. Budde, F. Gerdinand, M. Kurrat

C-28 Effect of the Cathode Cavity on the Features of Electron Beams Generated During 182

Multi-gap Pseudospark Discharges

Huiliang Zhao and Chengmu Luo

C-29 A New Method to Design Surge Generators 183

Liu Liang, Zhang Guixin andLuo Chengmu

C-30 The Investigation to Partial Electricity Parameters of Dielectric Barrier Discharge at 184

Atmospheric Pressure and its Application to Surface Modification ofTextile Materials

Tang Xiaoliang, Qiu Gao, Wang Liang and Feng Xianping

X


C-31 Laser-Induced Breakdown at 248, 532 and 1064 nm for Use in High Voltage Switching 185

Applications in Air and Sulphur Hexafluoride (SF6)Nicholas J. West and Ian R. Jandrell

C-32 Influence of High-Frequency Discharge on the Zirconia based Ceramics Produced by a 186

Sol-Gel Method

S.V. Nikolenko, A.A. Zhukov, VG Zavodinsky, A.V. Gavrilov, N.A. Kozlenkova, V.I.

Krylov, S.D.Antonov, N.M.VIasova

C-33 Corona Plasma Energization Techniques: Ultra-Short and DC/AC Power Sources 187

K Yan, G.J.J. Winands, Z. Liu, E. J .M. van Heesch, andA.J.M.Pemen

C-34 Experimental Investigation on Vacuum Arc Characteristics in Short Gap 188

Dong Huajun, Zou Jiyan, Liao Minfu, Wu Yanqing andZhaochun

C-35 Influence of Barrier Permittivity and Contact on the Appearance of Homogeneous 189

DischargesFrank Gerdinand, Peng Li, Michael Kurrat, ManfredLindmayer

C-36 Surface Modification of Polyester/Cotton Blends Using Atmospheric Plasma to Improve 190

Wettability and WickabilityCao Zhi, Hao Yanpeng, Liang Zhuo, and Guan zhicheng

C-31 Effects of Barrier Material on Dielectric Barrier Discharge Phenomena 191

Guo-Qing Yang, Guan-Jun Zhang, Wen-Yuan Zhang, Yun YangC-38 The Study and Development on NOx Removal of Vehicle Exhaust Gas by Non-Equilibrium 192

Plasma

WangJingyi, Guan Zhicheng, Wang Liming, Jia Zhidong, ZhongKan, LongBiao

Session D: Outdoor insulation and composite insulators

D-01 Study of On-line Monitor for Insulator String Based on Corona Pulse Method 193

Mao Liuming, Wen Yuanfang, Liu Chun, Wei Bin

D-02 Investigation of Leakage Current of Outdoor Insulators with a Newly Developed Monitoring 194

System

MaoYingke, Guan Zhicheng, Wang Liming, Mao Suchun and Li Zhi

D-03 Primary Exploration on Study of EHV Outdoor Insulation Discharge Property 195

Chen Yong, Wan Qifa, Gu Lili, Xu Zhong, Wan Ke

D-04 Silicone Compound Coating on The Ceramic Outdoor Insulators 196

Suwarno, Isnuwardianto

D-05 Measurement of Corona Discharge in an Icicle/Iced-Plate Electrode System under Positive 197

DC Voltage

M. Farzaneh, D. Yu and J. Zhang, L. Shu, W. Sima, and C. Sun

D-06 Effects ofAir Gaps on the Flashover Performance of Ice-Covered Insulators 198

M. Farzaneh andJ. ZhangD-07 Design ofInterphase Composite Spacer for 500kV Compact Transmission Line 199

Hou Lei, Wang Liming, Guan Zhicheng

D-08 DC Voltage Distribution along Strings of Cap-And-Pin Insulators 200

Michal Grabia, Jaroslaw Gielniak

D-09 Outdoor Insulation and Composite Insulators 201

Max G. G. Neri, Edson G. da Costa, Estdcio T. W. Neto, Ricardo W. S. Garcia and Osvaldo L. S.

Paiva

D-10 Effect of Byproducts from Surface Discharge on Deterioration of Silicone Rubber Housing 202

Materials in Salt Fog Ageing Test

B. Marungsri, H. Shinokubo, R. Matsuoka andS. Kumagai

XI



D-11 Electric Field Modelling of Non-Ceramic High Voltage Insulators 203

B. Vancia, T.K. Saha, T. GillespieD-12 Measurement of Site Pollution Severity under DC Voltage by Means of A Portable Test 204

Station

Zhiyi Su, Weimin Ma, Dong Wu, Urban Astrom, and Greger Karlsson

D-13 Aging on Composite Hollow Insulators for High Voltage Circuit Breakers: Experience from 205

Testing and Service

Dan Windmar, Fredrik Jansson andHenrik Hiilborg

D-14 Sag Calculation ofAged Overhead Lines 206

M. Muhr, S. Pack, S. Jaufer

D-15 Investigation on the Flashover Performance of Nanostructured Insulating Surface with 207

"Lotus-Effect®" under Wet Conditions

J. Wu, C. Cornelissen, A. Schnettler

D-16 Effects ofWater Drop Corona at Dew Layers on Silicone Rubber 208

Arkadiusz Dziubek, Tobias Braunsberger, Michael Kurrat

D-17 Study on the Acid Sources of Field Brittle Fractured 500 kV Composite Insulator 209

Dai Jianjun, Liang Xidong,

D-18 Outdoor Insulation Selection Method of HVDC Lines 210

Su Zhiyi, Liang Xidong, Ym Yu, Zhou Jun, Li Wufeng, Li Peng

D-19 Influence of Ambient Temperature and Water Conductivity on the Flashover Performance of 211

Ice-covered Insulators under Switching Impulse Voltage

J. Zhang, T. Guerrero and M. Farzaneh

D-20 Impulse Flashover Performance of a Post Station Insulator under Icing Conditions based on 212

the Electric Field Distribution

Vinay Jaiswal and Masoud Farzaneh

D-21 Ageing Characteristics of RTV Silicone Coating Materials by Corona Discharge 213

Se Won, Han, Han Goo, Cho, and Dong Hee, Han

D-22 Hydrophobicity of RTV Nanocomposites under Chemical Environment 214

Lan Lei, Wen Xishan, Cai Dengke, Liu Haiyan

D-23 On-Line Hydrophobicity Measurement of Composite Insulators 215

Zhao Linjie, C. R. Li, Huang Xingquan, Chen Xiujuan, Yao Jisha, Cheng Yangchun and Song Wei

D-24 Study on Enhancement of Electric Gradient of ZnO Varistor for HV Surge Arrester 216

WANG Yu-pingD-25 Contamination Flashover Performance of Insulator Strings and Post Insulators Used for 217

±500kV HVDC SystemLi Wufeng, Li Peng, Su Zhiyi, Fan Jianbin

D-26 Dynamic Behavior ofWater Droplet on Polymer Insulator under DC Field 218

X.Jiang, B.XDu, Y. Liu andX. Zhu

D-21 Propagation of AC Arc Discharge inside Wet Snow 219

H. Hemmatjou, I. Fofana, and M. Farzaneh

D-28 Determination of the Brittle Fracture Process of Field Failed HV Insulators 220

C. de Tourreil, G. Thevenet, E. Brocard, N. Siampiringue.N. Pichon

D-29 Evaluation of Electric Field Stress on the Surface of High Voltage Ceramic Insulator 110 kV, 221

on the Basis ofTemperature Measurement

Marcin OLSZEWSKI, Zbigniew NADOLNY

D-30 Research on Ageing of Composite Traction Insulators 222

Szymon Banaszak

D-31 Sem and Ftir Analysis of the Performance of RTV Silane Epoxy Resin after Obtaining Sea 223

XII



Pollution in TROPICAL

Tumiran, Hamzah Berahim, F. Soesianto and Harry Prabowo

D-32 Methodology to Study the Electrical Performance of RTV Silane Epoxy Resin as the High 224

Voltage Polymeric Materials Insulator in Tropical Climate

K T.Sirait, Bamzah Berahim, Harry Parbowo

D-33 The Effects ofTropical Climate Aging on Dielectric Properties of Silane Epoxy Resins 225

Hamzah Berahim, K T.Sirait, Hany Parbowo

D-34 Seasonal Pollution Level Measurement at 132kV Switchyard ofAECO, Ahmedabad 226

K.N.Ravi, N. Vasudev, PV.Vasudevan Nambudiri, B.S Dholakia, CD. Shah

D-35 Evaluation of the Profile of Insulator for the Pollution Performance under DC Voltages 227

A''. Vasudev, K.N.Ravi, P. V. Vasudevan Nambudiri

D-36 Effect of UV Light in the Salt-fog Ageing Cycle on RTV Coated Porcelain Insulators 228

Devendranath. Dl, Aravind. K. A, Ramulu. A, Sreelalitha. S

D-37 Study on Solid Layer Pollution Testing of Insulators by Clean Water Fog Wetting 229

KN.Ravi, N.Vasudev, PV.Vasudevan Nambudiri

D-38 An Analysis on Forest Fire on the Characteristics ofTransmission Polymer Insulators 230

In-Hyuk Choi, Jang-Hyun Choi, Tae-Woo Sin andDong-IlLeeD-39 Surface Characterization of Oxygen Plasma Treated Silicone Rubber 231

Bok-Hee Youn, Dong- Woon Kim and Seung-Ik Jeon

D-40 A study of 154kV Porcelain Insulator by Contained Alumina 232

In-Hyuk Choi, Jang-Hyun Choi, Byung-Uk Min and Dong-Il Lee

D-41 Field Exposure Tests of Semiconducting Glaze Porcelain and Composite Insulators 233

R.F. Corpuz, A.A. Buencamino, Y. Suzuki, K. Tanaka, M. Akizuki andK. Kondo

D-42 Effect of Hydrophobicity on Contamination Flashover Voltages of Polymer Insulators with 234

Different Core Diameters

B.K. Gautam, Shigeki Matsumura, Kenji Sakanishi andRyosuke Matsuoka

D-43 Influence of Typhoon on Leakage Current Characteristics of Polymer Insulators in Outdoor 235

Exposure Test

Masayuki Hikita, Takumi Tsurusaki, Yasuhiro Souta, Atsushi Takenouchi, Shinya Ohtsuka,

Akinori Ohno

D-44 The Influence of Local Discharge Path Deviation on an Electric Potential Distribution near 236

the Local Discharge on a Conductive Film

Tomoyuki Fujishima, Takahiko Yamashita andHisao Matsuo

D-45 Insulation Performance of a Gas Insulated Switchgear with Composite Insulator Housings 237

Masayuki Sato, Kenichi Nojima, Hiroshi Kaneta andAkio Kobayashi

D-46 Effect ofDischarge Column on the Degradation of Polymeric Materials for Insulators 23 8

Takahiko Yamashita, Takuro Yamada, Tsuyoshi Ishihara, Akira Mano, Tomoyuki Fujishima and

Hisao Matsuo

D-47 Contact Angle Measurement on Insulator Surfaces with Artificial Pollution Layers and 239

Various Surface Roughnesses

Florian Exl, JosefKindersbergerD-48 Vapor Permeation and Mechanical Damage Limits of Composite Hollow Insulators 240

N. Mohring, H. Haupt, V. Hinrichsen and C. Berger

D-49 Different Characteristics ofArtificially Polluted High Voltage Composite Insulators 241

Ghasem Ahrabian andFarhad Shahnia

D-50 State Analysis of 110 kV Composite Insulators after Being in Service in the Electric Power 242

System of Slovenia for Several Years

Stane Vizintin, Andreja Varl, Sasa Jamsek, Marko Hrast, Bostjan Bad

XIII


D-51 Performance ofOutdoor Insulators under Non-Uniform Pollution Conditions 243

R. Boudissa, A. Haddad, Z. Sahli, A. Mekhaldi, R. Baersch

D-52 Evaluation of Interfaces between Silicone Rubbers Using a Modified Inclined Plane Test in 244

Salt Fog

Johan Andersson, Henrik Hillborg, StanislawM Gubanski

D-53 A study ofInsulator Leakage Currents under AC And DC Voltages 245

GC Sibilant, AC Britten, NMljumba andA Naidoo

D-54 Potential Distribution Measurement of 220kV and 500kV Composite Insulators 246

Xie Congzhen, Wang Jianguo, Zhen Peng andXue Jian

D-55 Design Optimization of Disc Insulators for 420kV Class Gas Insulated Substation 247

Ch. Janaki, S.Satyanarayana, R.Rajaraman andS.S.Tulasiram

D-56 Behavior of Water Droplets on Surface of Solid Insulator in Electric Field 248

A. Moukengue Imano andA. Beroual

D-57 Comparative Study of RTV Coatings under Polluted Conditions 249

N. Vasudev K.N.Ravi, P. V. Vasudevan Nambudiri

D-58 Countermeasures of Pollution Flashover for HVDC Converter Stations 250

Hu Yulong, An Na, Liao Wenfeng

D-5 9 The DC Rain Flashover Performance of Station Insulators under Contamination Condition 251

Su Zhiyi, Fan Jianbin, Li Wufeng, Li Peng, S. Ito andK Sawano

D-60 Mass Decrements of Composite Insulation Due to Influence of Electric Tensions 252

Lech Subocz, Szymon Banaszak

D-61 Important Correction Factors in HVDC Line Insulation Selection 253

Su Zhiyi, Liang Xidong, Yin Yu, Zhou Jun, Li Peng, Li Wufeng

D-62 Application of the ANN and TDOA in the On-line Monitoring for the Fault Location of the 254

Porcelain Suspension Insulator

Deng Wei, Wen Xishan, Chen Jiangbo

D-63 Dynamic Characteristics of Water Droplets on Hydrophobic Contaminated Surface under 255

AC Voltage Application and Influence of Hydrophobic State on EFD

Haifeng Gao, Zhidong Jia, Zhicheng Guan andJie Yang

D-64 Review of Surge Arresters for Japanese Power Systems and Their Standards 256

Shingo Shirakawa, Soji Kojima, Misao Kobayashi, Hiroyuki Kado, Seisuke Nishimura

D-65 Investigation of the Dry Band Activity on High Voltage Porcelain Insulators Based on Field 257

Leakage Current Measurements

K. Siderakis, D. Agoris, D. Tsanakas, E. Thalassinakis

D-66 Estimation on Long-Term Reliability of Suspended Porcelain Insulators for 154kv 258

Transmission Line

Se Won, Han, Han Goo, Cho, In Hyuck, Choi and Dong II, Lee

D-61 Electrical Discharge Initiation at the Tip of an Icicle-an Experimental Approach 259

S. Brettschneider, M. Farzaneh, K.D. Srivastava, C. Volat

D-68 Study of Electrical, Mechanical and Surface Properties of Composite Insulators 260

Morteza Ehsani, Gholam Reza Bakhshandeh, Jalil Morshedian, Hossein Borsi, Ernst Gockenbach

D-69 Hydrophobicity Changes of SIR Composite Insulators on Multi-Stress Ageing Test 261

LiZhenyu, Liang Xidong, Zhou Yuanxiang, Yin Yu and Li Xuesong

D-70 Study on AC Flashover Performance and Discharge Process of Polluted and Iced IEC 262

Standard Suspension Insulator String

Xingliang Jiang, Shaohua Wang, Zhijin Zhang, Shujiao Xie, Yan Wang

D-71 Research on Minimum Approach Distance of Live Working on 500kV Compact 263

Transmission Lines in High Altitude Area

XIV

Proceedings ofthe XlVth International Symposium on High Voltage EngineeringTsinghua University, Beijing, China, August 25-29, 2005

WangLinong, Hu Yi, Liu Kai, Zheng Jie, Xu Yu and Chen Yan

D-72 The erosion experiment and the calculation of electric field on the cracked 500 kV long-rod 264

string composite insulator

Dang ZhenPing and Peng ZongRen

D-73 Analysis of reliability and operation characteristic of composite insulator 265

WU Guang-ya, XU Tao, CA1 Wei

D-74 Estimation ofAccelerated Aging Test Methods of the Silicon Rubber Composite Insulators 266

WU guang-ya, XU Tao, CAI Wei

D-75 The Influence of Water Drops on the Electric Field Distribution and Electric Erosion of High 267

Voltage Composite Insulators

Yu Zhong, Peng ZongRren, Cao Li

D-76 Probes for spot measurement of surface conductivity on polluted insulators 268

Kiystian Leonard Chrzan, Masoud Farzaneh

Session E: Ultra high voltage

E-01 Insulation Design for UHV Transmission Lime in TEPCO 269

Toshiro Takebe, Masanori Isozaki

E-02 Outline of Research Activity in Japan on Corona Effects from UHV AC and HVDC 270

Transmission Lines

Kazuo Tanabe

E-03 Challenge of Ultra High Voltage Transmission Technology in China 271

Guan Zhicheng, Zhang Fuzeng, Wang Guoii, Jia Zhidong and Wang Liming

E-04 Technical Characteristics and Engineering Applications of UHVDC Transmission System 272

Li Licheng

E-05 Dscussion on the High Altitute External Insulation Correction 273

Wan Qifa, Chen Yong, Zheng Song

E-06 Approach to UHV Surge arresters 274

HeJi-mou, ZhuJia-xi

E-07 DC Flashover Performance of Long Insulator Strings Coated With Ice 275

Li Peng, Li Wufeng, Su Zhiyi, Fan Jianbin

E-08 Study on the Various Pollution Performance ofDC post Insulators under High Altitude Area 276

Zhou Jun, Guan Zhicheng, Wang Liming and Sun Jing

Session F: Asset management ofHV equipment: strategies & tools

F-01 A Perspective on the Future of Power Equipment Condition Monitoring and Asset 277

Management

Zhenyuan Wang, Le Tang

F-02 Evaluation ofPartial Discharge Impulses with Optical and Conventional Detection Systems 278

R. Schwarz, M. Muhr, S. Pack

F-03 Trends in Dielectric Testing of HVDC Valves and Associated Equipment 279

B. Hoferer, R. Badent and T. Leibfried

F-04 A Unique Sensitivity Verification Combined with Real-time PD Identification Method 280

Toshihiro Hoshino, Shiro Maruyama, Yoshikazu Hoshina and Masahiro Hanail

F-05 CFD Modeling ofA Variable-Blast Interrupter 281

V.Sunitha, M.Mohana Rao, H.S. Jain and V. V.N. Marthy

F-06 Condition Assessment of the Cellulosic Insulation from Power Transformers Taken out of 282

Service

XV



Hans Peter Gasser, Bernhard Heinrich, Christoph Krause

F-07 Condition Assessment Model for Power Transformers 283

Edward Gulski, JohanJ Smit, R. Schomper, Jos Slangen, Peter Schikarski

F-08 UHF PD Sensitivity Check on Power Transformers 284

Sander Meijer, Pantelis D. Agoris andJohan J. Smit

F-09 FRA Sensitivity Analysis using High Frequency Modeling of Power Transformers based on 285

the Finite Element Method

Eilert Bjerkan, Hans Kristian Hsidalen, Olivier Moreau

F-10 Analytical Approach of Frequency Response through Mathematical Model of Transformers 286

WindingK. S. Herszterg, H.J. A. Martins, S. Carneiro Jr

F-ll A New Approach of Synchronous PD Measurement at Both Ends of a H.V. Gas Pressure 287

Cable System

T. Kumm, K. Rethmeier, W. Kalkner, E. Zinburg

F-12 Improved Digital Modeling and Transient Calculation on Experimental Current Limiting 288

Fuse OperationChen Zhe, Wen Yuanfang andLv Guangqian

F-13 Asset Management Decision Support Model for Distribution Power Cable 289

G.J. Frijmersum, B. Quak, E. Gulski and J.J. Smit

F-14 Life Asset Management of the Electrical Components in Medium-Voltage Networks 290

Xiang Zhang andErnst Gockenbach

F-15 Environmentally Friendly Testing of Medium Voltage Equipment after Manufacturing 291

Process

Marek Florkowski, Robert Sekula, Helmuth Leskosek, Oliver Claus, Barbara Florkowska, Pawel

Zydron

F-16 Evaluation of the Clearances for Metal Enclosed Equipment-First Part: Tests in Open Air 292

Jose Antonio Cardoso, Darcy Ramalho de Mello

F-17 Determination of the Actual Condition of the Electrical Components in Distribution Systems 293

Xiang Zhang, Ernst Gockenbach, Hossein Borsi, Uwe Zickler, Michael Schwan, Andrei Machkine,

Armin Schnettler

F-18 An Operating Mechanism driven by the Motor for HVCB 294

Wang Jingjun, Huang Yulong, Qian Jiali

F-19 Ferroresonance Involving Voltage Transformers in Medium Voltage Networks 295

Wojciech Piasecki, Marek Florkowski, Marek Fulczyk, Pentti Mahonen, Mariusz Luto, Wieslaw

Nowak

F-20 Optimization Design of Permanent Magnetic Actuator for 40.5kV Vacuum Circuit Breaker 296

Cui Han, Tan Dongxian, Tang Yan and Li Yan

F-21 Electrical Properties of Nozzle for Circuit Breaker 297

H. Y. Park, D. P. Kang, M. S. Ahn and M. K. Na

F-22 Fundamental Performance Evaluation of a Gas Circuit Breaker with Experimental 298

InvestigationY. W. Jeong, S. Y. Lee, H. T. Park and! S. Oh

F-23 Influence of Fault Current Limiter on Transient Recovery Voltage of Circuit Breaker 299

Guan Yonggang, Liu Weidong, Xu Guozheng and Qian Jiali

F-24 Practical Experiences on On-line PD Detection on Distribution Power Cables 300

E. Gulski, M.G.A.van Vliet, J.J. Smit, F de Vries

F-25 Research on the Testing Circuit for Synthetic Making of High-Voltage Circuit Breakers at 301

Full Rated Voltage

XVI



FanXingming, ZouJiyan, CongJiyuan

F-26 Two Dimensional Movement of Free Metallic Particle in a 3-Phase 245 kV Common 302

Enclosure Gas Insulated Substation (GIS)

Ratnesh Kumar, K.D.Srivastava, B.P.Singh

F-27 PD Magnitude in High Voltage Stator Insulation of Large Turbine Generators and Criteria 303

in the Decision Making Process

Maks Babuder

F-28 Research on the Arc Chamber Flow Field Control of High Voltage SF6 Circuit Breaker 304

Jin Lijun, Guo Qiyi, Liu Zhe

F-29 A Novel Adjustable Tcr Arc Suppression Coil 305

Cao Zhenchong, YangXuechang, Wu Zhensheng

F-30 An Experimental Investigation For Proper Computation Of Capacitive Power 306

Compensation During Temperature Rise Test On Large Power Transformers

A.K. Singh, Rajendra Singh, P.M. Mathai

F-31 An Experimental Investigation for Eliminating the Overshoot on Impulse Wave Shape 307

during Impulse Test of Large Generator Transformers

Jagannath Padhi, Pradeep Singh, R.K. Tiwari

F-32 Diagnostic ofthe Short Circuit Duty of Power Transformers 308

A. Kraetge, W. Kalkner, R. Plath, K. -D. Plath

F-33 The Application of Rough Set Theory in Condition Assessment on Power Transformer 309

Zhang Weizheng, Li Yanming, Wu Xiaohui

F-34 Fault Diagnosis Method for Power Transformer Based on Bayesian Network and Dissolved 310

Gas Analysis

Wang Yongqiang, Lu Fangcheng, Li Heming

F-3 5 Effect of Closing Resistance on VFTOs of IPC Transformer Windings 311

S.M.H. Hosseini, M. Vakilian and G.B. Gharehpetian

F-36 Increasing the Operation Reliability of Power Transformers by Continuous Desiccation 312

without Affecting the DGA

V. Wasserberg, H. Borsi, E. Gockenbach, O. Schmidt, P. Hogrefe, P. Werle, J. Wohlfarth

F-37 Ecological Friendly Alternative to Mineral Based Transformer Insulating Oil with Superior 313

Properties

V. Wasserberg, B. Dolata, H. Borsi, E. Gockenbach, H. Baehr

F-3 8 The Thermal Analysis of Pole Mount Mold Transformer with One Body Molding by Duct 314

Condition

Han-Goo, Cho and Un-Yong, Lee, In-Hyuk Choi

F-39 Influence of Strategies for Network Cost Reduction on the Development of Quality of Supply 315

Egger Hermann, Draxler Reinhard, Marketz Michael, Fritz Wolfgang, LiidorfKarsten

F-40 Frequency Response Analysis (FRA) for Characterization of Power Transformer Insulation 316

Nilanga Abeywickrama, Yuriy V. Serdyuk and Stanislaw M. Gubanski

F-41 Differences in Stator Winding Partial Discharge Activity Between Manufacturers 317

Greg Stone and Vicki Warren

F-42 Improved Top-oil Temperature Model for Unsteady-State Conditions of Power Transformers 318

Rummiya Vilaithong, Stefan Tenbohlen, Tobias Stirl

F-43 Frequency Response Measurements to Study Shorted Turns Behavior of Transformer 319

Winding

Pradeep M.Nirgude, B.Gunasekharan, A.D.Rajkumar, B.P.Singh, and V.Sreelatha

F-44 Frequency Response Analysis-A Reliable Condition Monitoring And Diagnostic Tool For 320

Power Transformers

XVII


R.K. Tiwari, J. M. Malik

F-45 Comparison Between the Acoustic Signals Generated through Experiments and Finite 321

Difference Simulations

Ahmad Qisti Ramli, Chai Ming Lee, Z.D. Wang, Prodipto Sankar Ghosh

F-46 Neural Network Method of Identification of Fault within a Power Transformer based on 322

Computer Studies

M. Surya Kalavathi, D. Prasad, B.P. SinghF-47 Investigations on Axial Displacement of Transformer Winding by Frequency Response 323

Technique

Pradeep M. Nirgude, B.Gunasekaran, A. D. Rajkumar andB. P. Singh

F-48 Importance of a Proper Iron Core Representation in High Frequency Power Transformer 324

Models

Eilert Bjerkan, Hans Kristian H0idalen, Olivier Moreau.

F-49 Research ofthellOkV Self-Tuning Passive Filter 325

Liu Zhizhen, ZhangXin

F-50 The Application of Grey Clustering Decision-Making Method to the State Assessment of 326

Power Transformer

Yuan Zhijian, LluangXiaojia, Lei HongF-51 Life Assessment by Means of Measuring Thermal Stress of GIS Arcing Contacts 327

Yong-Hee Lee, Hyung-Dong Lee, Do-Hoon Lee, Yang-Sop Shin, Young-Geun Kim, Young-June

Shin, Woo-YoungLee, Jin-Kyo ChongF-52 Computer Procedures for the Evaluation of Parameters of Digitally Recorded High Power 328

Current

WangJing, LiJunhao, Li Yanming, Wang An, Zhou Huigao

F-53 Investigation of Transformer Insulation at High Frequencies and High Voltages 329

Mischa Nagel, Thomas Leibfried, Thomas Wietoska, Volker Hinrichsen

F-54 The Experience of Itaipu Binacional in the Acquisition of Isolated Phase Bus systems for the 330

New Generator units of Itaipu-Comments on the Specification, Design, Manufacturing

Quality Control and Special Tests

Cldudio Morals, Luiz Francisco Giacomet, Ruben Esteban Brasa, Vilmar M. Teixeira, Cldudio L.

Severino and John Hall

F-55 Maintenance Strategies for Distribution Networks 331

M. Marketz, J. Polster, M. Muhr

F-56 The Installation of a System on an All-Dielectric Self-Supporting Cable to Prevent Failure 332

Through Dry-Band Arcing on HV Transmission Lines

S MRowland, O de la Cerda, N R HaighF-57 Asset Management Decision Support for HV Infrastructure Lifetime Management 333

E.Gulski, B. Quak, J.J. Smit andE.R.S.Groot

F-58 Comparison of Different DGA (Dissolved Gas Analysis) Methods for the Condition 334

Assessment of Power Transformers

P. Werle, C. Radigk, W. Sorgatz, M. Hahn, V. WasserbergF-59 Fleet Screnning Condition and Life Assessment ofTransformer Populations 335

P. Werle, J. Wohlfarth, N. Fantana

Session G: Diagnostics and on-line monitoring for CBM

G-001 Study on A Noise Rejection Method based on UHF for Partial Discharge (PD) Monitoring 337

Wang XiaoNing, Zhu DeHeng, Li FuQi

G-002 Pulse Preclassification for Online PD Noise Suppression Based on Realtime Pulse Shape 338

XVIII



Identification

W. Krause, H.-G. Kranz

G-003 Study on PD Localization by Ultrasonic Measuring in Power Transformer Based on Particle 339

Swarm Optimization

Luo RiCheng, Li WeiGuo, Li ChengRong andXiong Hao

G-004 Suppressing the Narrow-band Interference in Partial Discharge Signals Based on Chaotic 340

Oscillator

Li Nan, Sun Caixin, Liao Ruijin, LiJian andDu Lin

G-005 A New Procedure for Partial Discharge Localization in Gas-Insulated Switchgears in 341

Frequency Domain

Stefan M. Hoek, Uwe Riechert, Thomas Strehl, Stefan Tenbohlen andKurt Feser

G-006 Automatic Partial Discharge Pattern Identification for Alarm Issuing on Continuous 342

Monitoring SystemsV.R. Garcia-Colon R. Gonzalez Melchor

G-007 Insulation Condition Assessment by Non-destructive Diagnosis of Distribution Power Cables 343

Edward Gulski, Frank Petzold, Paul P. Seilz, Frank de Vries

G-008 Numeric Data Processing to Enable PD Site Location by Time-Domain Reflectometry in 344

Distribution Power Cable Systems

B. Quak, E. Gulski, J.J. Smit and PP. Seitz

G-009 Identification of Partial Discharge Sources in High Voltage Insulating Systems Using 345

Acoustic Emission Method

Wojciech Sikorski, KrzysztofSiodla

G-010 Research on Multi-Parameter Monitoring and Fault Diagnosis Technique of XLPE Power 346

Cable

Chen Xiaolin, Cheng Yonghong, Zhao Yong, WangXianqing, Khoo Kien Ling

G-011 Study on Combining UHF Techniques with the IEC60270 Standard for Monitoring Partial 347

Discharge ofHV Plant

L.Yang, B.G. Stewart, A. J. Reid, M. D. JuddandR A Fouracre

G-012 High Bandwidth Measurement of Partial Discharge Pulses in SF6 348

A. J. Reid and M. D. Judd

G-013 Practical Issues in Making FRA Measurements on Power Transformers 349

J.A.S.B. Jayasinghe, Z.D. Wang, A.W. Darwin and P.N. Jarman

G-014 Study on UHFReal-time Spectrum Characteristics of PD Signals in Transformer Oil 350

LuQifu, Li Chengrong, TangZhiguo, FuShangying, LiJinzhong and Cheng xu

G-015 A Novel On-line Monitoring Technique of Partial Discharge in Oil-immersed Power 351

Transformers

Chen Yu, Xu Xiaowei, Liu Tong, Ji Linlie, Chen Wei, Cheng Yonghong, Chen Lixin

G-016 Development of Insulation Diagnosis System For HV Power Transformer 352

Li Minghua, Dong Ming, Zhou Mengge, Qu Yanming And Yan Zhang

G-017 Interactions between Artificial Local Degradation and the Dielectric Response of Polymer 353

Cable Insulation

Guido Schmidt andHans-GerdKranz

G-018 First Experience of PLN in Applying Condition-based Maintenance on 150kV and 500kV 354

GIS

APharmatrisanti, S.Meijer, E.R.S. Groot, F.S.W. de Vries, J.J. Smit

G-019 Locating Partial Discharges using UHF Measurements: A Study of Signal Propagation using 355

the Finite-Difference Time-Domain Method

Martin D. Judd, Lily Yang andIan J. Craddock

XIX


G-020 Analysis and Interpretation of Transformer FRA Measurement Results using Transfer 356

Function Estimation

D.M. Sofian, Z.D. Wang, J.A.S.B. Jayasinghe, P.N. Jarman andS.A. Ryder

G-021 Automated Statistical Recognition of Partial Discharges in Insulations 357

B.Karthikeyan &S.GopalG-022 A Novel Complex Probabilistic Neural Network System for Classification of Partial 358

Discharge Patterns

B.Karthikeyan &S.GopalG-023 Application of Superluminescent Light Emitting Diode to Electrooptic Modulator Based PD 359

Continuous On-line Monitoring SystemYTian, PLLewin, J S Wilkinson, S J Sutton and S G Swingler

G-024 Partial Discharge Location within Multiple-a Power Transformer Windings 360

MohammadS. Naderi, M. Vakilian, T.R. Blackburn, B.T Phung, Hao Zhang, Hio Nam O, Mehdi S.

Naderi

G-025 Development of a Portable Device for On-line Monitoring of Large Capacity Industrial 361

Batteries

Wang Hui, Wang Guangzhu, Li QingminG-026 On-line Monitoring The Tangent of Dielectric Dissipation Factor 5 Using Double Polarities 362

Cross Zero Comparing Method

YutingYan, Xishan Wen, JiamingHu, YuanZhengG-021 The Port Communication Technology Used in a Centralized Online Insulation Monitoring 363

System

YiXiaoyu, Guan Genzhi

G-028 Wireless Online Insulation Monitoring System of High-Voltage Electrical Equipment Based 364

on Bluetooth Technology

Hailong Zhang, Genzhi Guan

G-029 UV-lnspection of HV Equipment 3 65

ArbusovR.S., Ovsyannikov A.G.

G-030 New Method of Temperature Measurement in High-Voltage Systems by Passive Remote 366

SAW Sensors

Teminova Renata, Hinrichsen Volker, Freese Jens, Hudasch Manfred, Bebensee RalfG-031 Power Transformer On-line Monitoring in Slovenia 367

Tadeja Babnik, Darko Bordon, Marjan Pezdirc, Aleksader Polajnar andAndrej Ribic

G-032 The Propagation of High Frequency Partial Discharge Pulses in PILC Cable 368

H. N 0, T. R. Blackburn, M. Vakilian, B. T. Phung, Z. Liu, H. Zhang, M. S. Naderi

G-033 On-Load Tap-Changer Diagnosis Based Acoustic Emission Technique 369

Mauro B. Trindade, Helvio J. A. Martins, Armindo F Cadilhe and Jose A. Moreira

G-034 High-Speed Data Acquisition System for Partial Discharge on-line Monitoring in 370

Transformer

Wang ShengHui, Lu FangCheng, Liu YunPengG-035 Sensitivity Improvement of UHF PD Detection in GIS by Sensors Installed from CT Outlet 371

Port

Wei Wang, C.R. Li, Xingquan Huang, Xin Li, Hailiang Li

G-036 An UHF Partial Discharge On-Line Monitoring System for Power Transformers 372

Yuan Peng, Li Junhao, Wang Jing, Li YanmingG-037 Research of Relationship between Partial Discharge and Dissolved Gases Concentration in 373

Oil

Xingang Chen, Wei-gen Chen

XX


G-038 Condition Assessment of Large Power Transformers by On-Site UHF Partial Discharge 374

Measurements

Raja Kuppuswamy andPatrick Coquelin

G-039 Improvement ofAcoustic Detection and Localization Accuracy by Sensitive Electromagnetic 375

PD Measurements under Oil in the UHF Range

Sacha Markalous, Stefan Tenbohlen, Kurt Feser

G-040 New Robust Non-Iterative Algorithms for Acoustic PD-Localization in Oil/Paper-Insulated 376

Transformers

Sacha M. Markalous, Stefan Tenbohlen, Kurt Feser

G-041 PD-Failure Probability Estimation of Gas Insulated Switchgear Using Phase Resolved Pulse 377

Sequence Analysis

D. Aschenbrenner, K Dreisbusch and H.-G. Kranz

G-042 Synchronous 3-Phase Partial Discharge Detection on Rotating Machines 378

W. Kalkner, A. ObralicI, A. Bethge and R. Plath

G-043 System for Measuring Partial Discharges in Oil-Paper Insulated Transformers and for 379

Localization of the Sources

J. Szczechowski, N. Abedi, H. Borsi, E. Gockenbach

G-044 Partial Discharge Diagnosis of Large Rotating Machines 380

Detlev W. Gross and Markus Soller

G-045 Characteristics of Change in On-Line Partial Discharge Magnitude for Long Term on 381

Ydrogenerator Stator Windings Using Acoustic Emission Detection Techniques

T. Kaneko, T. Ueda, O. Takenouchi, M. Otsubo, C. Honda, Y. Tsuruta, A. Fukura, T. Kakatsuki and

K. Tanaka

G-046 An Investigation on the Characteristics of Self Designed UHF Sensor Employable for 382

Detecting the PD Pulses Inside Gas Insulated Transformer

Seoungyong Jung, Jayoon Koo, yongmoo Jang, Kijun Park and Changwon Kang

G-047 Discrimination of Insulation Defects in a Gas Insulated Switchgear (GIS) by Use of a Neural 383

Network Based on a Chaos Analysis of Partial Discharge (CAPD)

Yunsok Lim, Jayoon Koo, Jeongtae Kim, Dongil Lee, Kooyong Shin

G-048 Measurement and Analysis of Partial Discharge by using Dual UHF Bands Method in GIS 384

Kwang Hwa Kim, Jae Gu Choi, Sang Hwa Yi, Jong Ho Sun

G-049 Investigation of Furanic Compounds for the Aged Oil-Paper in Power Transformers 385

Jae-Hoon Kim, Ju-Han Kim, Sang-Ok Han and Sei-Hyun Lee

G-050 Parameter Estimation of High Frequency Transformer Model for Partial Discharge 386

Localization Using Neural Network

A.M.Jafari, A.Akbari, M.Raisi

G-051 Multi-Source Partial Discharge Diagnosis in Three Phase High Voltage Devices 387

A.M.Jafari, A.Akbari

G-052 Partial Discharge Localisation in Power Transformers with Delta Connected Windings 388

Asghar Akbari, AH Mazhab Jafari, MohammadKharezi

G-053 Prediction of Partial Discharges in Transformer Oil Using Artificial Neural Networks 389

L.Mokhnache, P. Verma, A. Boubakeur

G-054 The Space-Time and Energy Characteristics of Partial Discharges in Air Void of Solid 390

Dielectric

Ovsyannikov A. G.

G-055 Establishment of Ultra Wide Band Sensors Transfer Function for Qualitative PD 391

Measurement

C.G. Azcarraga, V.R. Garcia-Colon

XXI



G-056 Enlargement of Fingerprint in Procedure of Defects Recognition in Oil-paper Insulation 392

Using Time Parameters of PD

Hubert Moranda, Mariusz Sztolcman, Krzysztof Walczak andHanna Moscicka-Grzesiak

G-057 The Influence of Electrical Connection Arrangements in the Radiometric Identification of 393

Partial DischargesC. Ramirez, P.J. Moore

G-058 An Integrated Measurement Strategy for Simultaneous Fault Identification: Combining the 394

UHF and IEC60270 Techniques

A. J. Reid, L. Yang, M. D Judd, B. G. Stewart andR. A. Fouracre

G-059 The Effect of Different Partial Discharge Sources on the Acoustic Emission Waves 395

Propagation in an Experimental Tank

Chai Min Lee, Ahmad Qisti bin Ramli, Prodipto Sankar Ghosh, Yasmin Hanum Md Thayoob and

Zhongdong WangG-060 Effects of Key Factors on the Time Varying (p-Q-N Patterns from Natural Voids in Resin 396

D. M. Hepburn, D. Guo, A. Nesbitt, C. Zhou and F. Baumann

G-061 Time Varying Characteristics ofcp-q-n Patterns from Protrusion in Oil-Paper Insulation 397

D. Guo, A. Nesbitt, D. M. Hepburn, C. Zhou, B. G. Stewart andE Baumann

G-062 Application of Multiple ANNs Method in Transformer Fault Diagnosis Based on DGA 398

Lu Fangcheng, Xu Zhiniu

G-063 Study on the Short Term Prediction of Gas Dissolved In Power Transformer Oil Using 399

Partial Least Square Regressive Model

Zhang ChengBiao, Song Bin, Luo YunBai and Wen XiShan

G-064 On-line Monitoring of Power Factor (tan8) and Capacitance of Transformer Bushings 400

Alireza Setayeshmehr, AlirezaAkbari, Hossein Borsi, Ernst Gockenbach

G-065 Investigations on Detection of Winding Movements in Transformers by Frequency Response 401

Analysis

Pradeep M.Nirgude, B.Gunasekharan, A.D.Rajkumar, B.P.Singh andM.Suma

G-066 Methods for Transfer Function Acquisition of Power Transformers 402

Vladislav Kvasnicka, Radek Prochdzka

G-067 Time to Breakdown ofHigh Voltage Winding Insulations at Mechanical Vibrations 403

R. Vogelsang, R. Briitsch, K. Frohlich

G-068 A Comparison of FRA Measurements in Detecting Transformer Winding Faults: 404

Experimental Studies

J.A.S.B. Jayasinghe, Z.D. Wang, S.A. Ryder, P.N. Jarman andA.W. Darwin

G-069 The Application of Twice Synthesis Compare Method in On-line Insulation Monitoring 405

Diagnose

Wang Xiaoming, Mou Lei, Liu Jiaqi, Han Dong, LI YangmingG-070 Insulation Diagnosis using Dissipation Factor Measurements 406

Christian Homagk, Thomas LeibfriedG-071 Discrimination between Insulation Degradation and Faulty Conditions in Condenser 407

Bushings using On-Line Power Factor Monitoring

AsgharAkbari, MohammadBahadori, Mehdi Allahbakhshi

G-072 Bushing On Line Monitoring 408

A. Golubev, V. Rusov, A.Ovsyannikov, S. Zhivodernikov

G-073 Power Transformer Diagnostics Experience by Acoustic Emission Technique in Brazilian 409

Electrical System

Helvio J. A. Martins, Mauro B. Trindade, Alexandre Neves and Roberto Menezes

G-074 Study of Optimal Inspection Sequence in Transformer Fault Diagnosis Based on Information 410

XXII



Entropy TheoryLiu Na, Lu Zuliang, Zhang Lili, Gao Wensheng and Tan Kexiong

G-075 Ageing Diagnosis and Lifetime Estimation for Power Transformer 411

Dong Ming, Zhou MengGe, Qu YanMing, and Yan ZhangG-076 A Fault Diagnostic System of Power Transformer Based on Multi Artificial Intelligence 412

M. G. Zhou, M. Dong, Y. M. Qu, andZ. Yan

G-077 Analysis of Condition-Based Maintenance Technology For Power Transformers 413

Wang Qian, LiaoYuxiang, LiaoRuijin, DuLin

G-078 The Maintenance Prediction ofCircuit Breaker used on Shunt Reactor Switching 414

Fan Chen-Li, Cheng Chiang, Zeng Yang-lin, Hsiao Horng-Ching, Hsu Yu-Ming, Chuang Chung

Yun

G-079 The Fault Diagnosis for SPD based on Wavelet transform Modulus maximum 415

LiJunhao, KouXiaokuo WangJing, WuXiaohui, Li YanmingG-080 Study on Vibration Characteristics of Oil -filled Transformer Windings and Core 416

Ji Shengchang, Li Yanming

G-081 Study on Synchrony of Signal Acquirement and Accuracy of one Whole Signal Period 417

Sample

Gong Liwei, Wen Yuanfang, Hou Lei

G-082 Economic Aspects of Online Monitoring of Gas Insultaed High Voltage Switch Gear Systems 418

(GIS) Based on Life Cycle Cost AnalysisMark Kuschel, Karsten Laskowski

G-083 Investigation of Grease Deterioration Obtained from Aged GCBs 419

Atsushi Suzuki, Toshiya Kumai, Tadayuki Wada, Tadashi Yagi, Kazuyoshi Takahashi, Tadao

Minagawa, Makiko Kawada, Eiichi Nagao, Ei Tsuchie and Tetsuo Mochizuki

G-084 Integrated Diagnostic Assessment of Large Power Transformers 420

A.Ovsyannikov, S. Zhivodernikov

G-085 Evaluation of Moisture Content in Oil-Paper Insulation of Test Transformers Using 421

Dielectric Response Methods and Physico-Chemical Analysis

Jaroslaw Gielniak, Andrzej Graczkowski, Hubert Moranda, Hanna Moscicka-Grzesiak, Marek

Ossowski, Piotr Przybylek KrzysztofWalczak and Boleslaw Brodka

G-086 Assessment of Insulation State of Power Transformer After 35 Years of Operation Using 422

Different Diagnostic Methods

Krzysztof Walczak, Andrzej Graczkowski, Jaroslaw Gielniak, S. Gubanski, Hanna

Moscicka-Grzesiak

G-087 Design of a Differential Rogowski Coil with Ultra-wide Band 423

J. Zhu, S. Chen, F. Tao, L. Yang and Q. Zhang

G-088 Based on Distance Function Locating PD in Transformer Winding 424

Liu Yunpeng, Lu Fangcheng, Liu Lei and Li Chengrong

G-089 Study of PD Location in Power Transformers by EM Wave Method 425

Tang Zhiguo, Li Chengrong, Lu Qifu, Luo Lishi, Wang Wei, Cheng Xu, Li Jun

G-090 Application of Evolutionary Programming to Fault Diagnosis of Power Transformer 426

Chen Jiang Bo, Wen Xi Shan, Deng wei

G-091 Study on Substation Fault Diagnosis Approach Based on Multi-Immune-Agent 427

Su HongSheng andLi QunZhan

G-092 Predicting Faults of Oil-filled Transformer based on Grey Prediction of Fuzzy Fault 428

Membership Value

Zhou Li-Jun, Wu Guangning

G-093 Application of Information Fusion to Fault Diagnosis of Oil-immersed Power Equipment 429

XXIII


Liang Yongchun, Meng Fanfeng, Li YanmingG-094 Partial Discharge of Pattern Recognition in Transformers Using Adaptive Neuro-Fuzzy 430

Inference System (ANFIS)

Li Yanmu, Yuan Peng, Mu Lei and Li YanmingG-095 Current Phase Signature Analysis to Enhance Fault Detection of Low Voltage Induction 431

Motors

J. M. Ramirez Cruz, V. R. Garcia Colon, F A. Carvajal- Martinez.

G-096 A Data Mining Approach for on-line Monitoring of Transformer Bushings 432

Alireza Akbari, Alireza Setayeshmehr, Hossein Borsi, Ernst Gockenbach

G-097 High Sensitive Distinction of Partial Discharge Signal from Noisy Signal by Wavelet 433

Transform

Hisashi Kubota, Hiroshi Furihata, Akifumi Inui, Yoshihiro KawaguchiG-098 Analysis and Interpretation of FRA Measurement Results using Transfer Function 434

Estimation; Applications on Large Power Transformers

H. El-Hajjar, Z.D. Wang, DM. Sofian, P.N. Jarman, S.A. Ryder, andA. W. Darwin

G-099 High Frequency Based Assessment of Winding Faults in Electrical Machines and 435

Transformers

Marek Florkowski, Jakub Furgal

G-100 Computation of Neutral Currents in a Power Transformer and Analysis Using Various 436

Wavelet Techniques for Fault Detection in the WindingA.Bhoomaiah, P.Krishna Reddy, K.S.Linga Murthy, PAppala Naidu, B.P. Singh

G-101 Artificial Neural Network-A Non-Parametric Method for Partial Discharge Pattern 437

Classification

B.Karthikeyan & S.GopalG-102 External Type UHF Partial Discharge Sensor for Metal Covered Barriers in GIS 438

Kijun Park, Joosik Kwak, Chul-min Hwang, Young-no Kim andJayoon KooG-103 Comparison of Wavelet Transform De-noising Methods for Partial Discharge Detection in 439

Power Cables

Hao Zhang, T.R.Blackburn, B. T.Phung, Shuying Kang, Mohammad S. Naderi, HioNam. O

G-104 On-Site PD Decoupling and Localization at Cross Bonded HV Cable Systems 440

K. Rethmeier, W. Kalkner, R. Plath

G-105 Water Penetration Monitoring of High Voltage Cables-Technology- Operational Experience 441

- AdvantagesL. Goehlich, W. Kalkner, M. Merk, N. Polster, N Schindler

G-106 Investigation into the Conservatism of High Voltage Cable Rating Methods: A Comparison 442

between IEC60287 and Finite Element Analysis

D J Swqffield, P L Lewin and MLeBlanc

G-107 Application of Equivalent Circuit in Dielectric Response Analysis of Oil-Paper Insulation 443

System

Andrzej Graczkowski, KrzysztofWalczak, Jaroslaw SzymanskiG-108 Changes of Complex Dielectric Constant During The Ageing Process of Polymeric Insulation 444

Materials

Pawel Andruszkiewicz, Lech Subocz

G-109 Key Factors Affecting Frequency Response Analysis Measurements on Transformers 445

M. Wang andA.J. Vandermaar

G-110 The Possibility of Moisture Content Estimation In Transformer Oil Using Microwave 446

Method

Wojciech Sikorski, Piotr Przybylek

XXIV


G-lll Dielectric Response of Oil-Paper Insulation Systems of Large Moisture and Temperature 447

InhomogeneityJaroslaw Gielniak, Marek Ossowski

G-112 Fnn Based on Nicher Genetic Algorithm Using in the Recognition of Partial Discharge 448

Zhang Han, WenXishan, Deng Wei, TongXueFang

G-113 Reliability of Water Content Estimation in Transformer Insulation Obtained using 449

Physicochemical Methods

Piotr PRZYBYLEK

G-114 Interference Research of Partial Discharge On-line Detection in Subway Direct Current 450

1500V Cable

Shen XiaoJun, JiangXiuChen, Dong XiaoBing, and Zeng Yi

G-115 Partial Discharge Discrimination Using a Support Vector Machine 451

LHao, PLLewin andYTian

G-116 Application of PCA-LDA Methods to Classify Corona Discharge Sources 452

Seonghee Park, Keejoe Lim, and Seonghwa Kang

G-117 Comparison of Classification Schemes on Partial Discharge Sources 453

Seonghee Park, Keejoe Lim and Seonghwa KangG-118 Analyzing the Protection Behavior of Long Flashover Arrester by ATP 454

B. Vahidi, M.Amiri

G-119 Partial Discharges Measurements in Epoxy-Mica Insulation under Different Frequency 455

Stresses

R. Victoria L., E. Gockenbach, H. Borsi

G-120 Effect ofPower Equipment on PD detection sensitivity in Substation 456

Gao Wensheng, Man Yuyan, Wang Juan and Li Fuqi

G-121 Synchronous multi-terminal on-site PD measurements on power transformers 457

Stefan Schaper, WilfriedKalkne, Ronald Plath

G-122 Real-time Condition Assessment of Power System Assets as a Vital Information Backbone 458

for a comprehensive Online Asset-Management System

JozsefOsztemayer, Kurt Feser andStefan Tenbohklen

G-123 Capacitor Partial Discharge Footprint's Exploratory Research under HVDC 459

Liu Huachang, He Chengji and Yaoyong He

G-124 Filled-Dielectric UHF Coupler for Partial Discharge Detection in GIS 460

Li xin, Li chengrong, Wang wei, Chenji

G-125 Evaluation of On-Line Insulation Condition Assessment Techniques for Power Transformers 461

Pantelis D. Agoris, Sander Meijer and Johan J. Smit

G-126 Condition Based Maintenance ofHV Switchgear Systems 462

R.G.A. Zoetmulder, S. Meijer, J.J. Smit, W. van Kampen

Session H: Aging, space charge, dielectric measurements and industrial applications

H-01 The Influence ofAging on Results of Dielectric Spectroscopy on Impregnated Pressboard 463

Amir Abbas Shayegani Akmal, Ernst Gockenbach, Hossein Borsi andHossein Mohseni

H-02 Dielectric Strength of Different Gases in GIS 464

Denis Denissov, Heinz Rebholz, Wolfgang Kohler, Stefan Tenbohlen

H-03 "Mirror Image Effect" Space Charge Distribution in XLPE Power Cable under Opposite 465

Stressing Voltage Polarity

M. Fu, G. Chen and J. C. Fothergill

H-04 Voltage-time Characteristics in SF6 and CF3I Gas within Non-uniform Electric Field 466

Hiroyuki Toyota, Shinichiro Nakauchi, Shigeyasu Matsuoka, and Kunihiko Hidaka

XXV


H-05 Study on Partial Discharge Behavior in voids under Square-wave AC Voltage 467

Kai Wu, Tatsuki Okamoto and Yasuo Suzuoki

H-06 Effects of Electric Field, Temperature and Frequency on Discharge Characteristics of Epoxy 468

Resin Laminate under Reduced Pressure

Y.Gao, B.XDu and Y.Liu

H-07 PDC Measurements at Generator Bars 469

C. Sumereder, M. Muhr, R. Woschitzt

H-08 Resistance-capacitance Network Simulation on Characteristics of Nonlinear Dielectrics 470

Liu Ying, Gong RuiLei and Cao XiaoLongH-09 Selection for Dielectric Enhancement Technology of Polyethylene Insulation of MV Cables 471

Evaluated by Means of Infrared Spectrophotometric AnalysisAleksandra Rakowska, Ireneusz Sosnowski

H-10 Experimental Study and Theoretical Evaluation of High Voltage Breakdown in Polymer 472

Films

Konstantinos Theodosiou, Ioannis Gialas, Isidoros Vitellas, andDimosthenis AgorisH-ll Induced Transients in Secondary Circuit of Instrument Transformers during Switching 473

Operations in a Gas Insulated Substation (GIS)M. Mohana Rao, M. Joy Thomas and B.P.Singh

H-12 Investigation on AC Corona Pulse Characteristics at Different Air Pressure and Relative 474

Humidity Conditions

Hui Jianfeng, Guan Zhicheng, Wang LimingH-13 Application of DC-PD Technique in Judgment of High Voltage Pulse Capacitors Insulation 475

AgingYu ChengLong, Qiao Hong, Liu HuaChang

H-14 Surface Breakdown Characteristics of Silicone Oil for Electric Power Apparatus 476

Junichi Wada, Akitoshi Nakajima, Hideyuki Miyahara, Tadasu Takuma, Satoru Yanabu, ShigemituOkabe, Masanori Kohtoh

H-15 Ageing of Insulating Oils: Chemistry and Electrical Properties 477

I. L Hosier, A. S. Vaughan, F. J. Davis, P. L. Lewin andS. J. Sutton

H-16 Properties of High-Power Electrical Discharge in High-Enthalpy Flow 478

Sergey B. Leonov, Dmitry A. Yarantsev and Yury I. Isaenkov

H-17 Application of On-Line Partial Discharge Measurement at Main Transformer in P/S 479

Liao Xiuwu, Shi Lei, Lin Jixiong, Ke Jujin, Chen Min, Koji Urnao, Siu CheukyinH-l 8 Detection of Corona Sound Produced by Discharge on Insulator of Transmission Line 480

Toshinori Tsuji, Shingo Matsumoto, Shingo Nakayama, Masahisa Otsubo,Chikahisa Honda, Youichi Nkahara andHiroshi Noguchi

H-19 The Analysis of Discharge Partial Discharge According to Air Void of Extra High Voltage 481

Cable

TagYong Kim, HyukJin Lee, GwiYeol Kim, JongRyeol Shin, KyuBock Clio, Jin Woong HongH-20 Simulating and Analyzing Method for the Applications of Ferromagnetic Materials in 482

Suppressing High Frequency Transients within GIS

Li Qing-min, Wu Ming-lei, Zhang Guo-qiangH-21 Electrical and Thermal Properties of Semiconductive Shield for 154KV Power Cable 483

Kyoung-Yong Lee, Jong-Seok Yang, Kyu-Bok Cho, Dae-Hee Park

H-22 Characteristics of Lightning Impulse Corona Discharges in SF6/C02 Mixtures 484

Bok-Hee Lee, Sung-Kyun Oh, Young-Hwan Baek and Chang-Hwan AhnH-23 Ageing Stability of Vegetable Oil Insulating Liquid 485

R. Badent, M. Hemmer and T. Leibfried

XXVI


H-24 Indicators for Monitoring Ageing of Silicone Rubber Materials 486

J. Crespo-Sandoval, A. Haddadl, H. Griffiths, P.F. CoventryH-25 The Influence of Residue on Space Charge Accumulation in Purposely Modified Thick 487

Plaque XLPE Sample for DC Application

M. Fu, G. Chen andJ. C. Fothergill

H-26 Degradation and Restoration in the Hydrophobicity of Silicone Rubber Exposed to Corona 488

Discharge

Yong Zhu, Kenichi Haji, Hirofumi Yamamoto, Takuma Miyake, Masahisa Otsubo, Chikahisa

Honda, Osamu Takenouchi, andAkinori Ohno

H-27 Charge Accumulation on a Truncated Cone Spacer under DC Electric Field 489

Akiko Kumada, Ryotaro Yoshida, and Kunihiko Hidaka

H-28 Evaluation ofInterruption Capability on Various Gases 490

Hiromi Odaka, Masayuki Taki, Hitoshi Mizoguchi, Satoru Yanabu

H-29 Correlation between AC Characteristic Parameters and Aging Degree ofXLPE Insulation 491

Wang HongXin, Wen XiShan, Dou Peng

H-30 Influence ofAnnealing Method on Space Charge Accumulation in Polyethylene 492

Ninghua Wang, Yuanxiang Zhou, Hongbin Liu, Bin Gao, Xidong Liang, Zhicheng Guan, Tatsuo

Takada

H-31 Dielectric Breakdown ofGamma-ray Irradiated Epoxy Resin 493

B.X. Du, H. J. Liu, andD. S. Dong

H-32 Motion Simulation of Metallic Particle in Non-uniform Electric Field under DC Condition 494

by Monte-Carlo Method

Jia Jiangbo, Yang Lanjun and Zhang QiaogenH-33 Flashover and Puncture Characteristics of Thick Dielectric-Layered Electrodes under 495

Repetitive Discharges in SF6 Gas

Manabu Yoshimura, Hirotaka Muto, Kiyoshi lnami, Eiichi Nagao, Hitoshi Sadakuni and HiroyukiHama

H-34 Corona Impulse Current Produced by Hyperboloidical Tips in a Coaxial Cylindrical Setup 496

Carlos Gomez, Henry Lopez andFrancisco Roman

H-35 Charging Rechargeable Cells Using a High Impedance Current Source 497

Andrea Rojas, Jose Sanchez, Francisco Roman, Carlos Mora

H-36 Corona Points Discharge Current Measurement on Atmospheric Electric Field 498

Luis Forero, Juan Chavarro, Rafael Valenzuela, Francisco Roman

H-3 7 Thermal Aging of Polyesterimide 499

M. Nedjar, M. Bournane

H-38 High Frequency Numerical Model for Parasitic Inductance Calculation for a Rectangular 500

Capacitor with Metallized Films

C. Birouche, F. Bitam-Megherbi, M. Moudoud, M. Mekious, M. Megharbi

H-39 Electrical Conduction of PMMA under the Action of DC Voltage 501

M. Moudoud, O. Lamrous, M. Mekious, F. Bitam-Megherbi, M. MegherbiH-40 Behavior of XLPE Medium Voltage Cable under Switching Impulse 502

MohamedA. Abdallah

H-41 Water Treeing in Binary-and Multi-Mixture Dielectrics under High Frequency 503

O. E. Gouda, A. Thabet M., H. H. El-Tamaly

H-42 Modeling of Charge Transport in a Hybrid Gas-Solid Insulation System 504

Yuriy V. Serdyuk and Stanislaw M. Gubanski

H-43 Sequential Comparative Study of Dielectric Response and Analyses of Oil and Paper from a 505

Power Transformer Undergoing Repair

XXVII

Proceedings of theXIVth International Symposium on High Voltage EngineeringTsinghua University, Beijing, China, August 25-29, 2005

J. Blennow, A. Dernfalk, K. Walczak, C Ekanayake, P. Koestinger, L. Karlsson, U. Gdfvert, S.

Gubanski, A. Bartnicki

H-44 The Mixed Insulating Liquids as an Alternative for High Voltage Transformers 506

C. Perrier, A. Beroual andJ-L. Bessede

H-45 Diagnostics of Oil-Paper-Insulations Using Relaxation Currents 507

Maik Koch, Stefan Tenbohlen

H-46 Improved Determination of Moisture in Oil-Paper-Insulations by Specialised Moisture 508

Equilibrium Charts

Maik Koch

H-47 Adjustable Non-Contact Electrode and Measurements on er and tanS of Insulating Materials 509

Liu Ying, Cao XiaoLong and Li XueMin

H-48 Evaluation Algorithms for Ultrasonic Condition Assessment of Polymeric Insulation Systems 510

Philipp Walter, Torsten Wirz, Christian Cornelissen, Armin Schnettler

H-49 A New Method for Determination of Trap Energy Depth from PEA Measurement Alone 511

Hiroaki Miyake, Yasuhiro Tanaka, Tatsuo Takada and Rongsheng Liu

H-50 Various Aging Life Models Under Influence of Pulse Voltage on Magnet Wire Insulation 512

S. Grzybowski and S. Bandaru

H-51 Application of Signal Processing Technique of Ultra-Wideband Partial Discharge 513

Xiaojun Xie, Yonghong Cheng, Xiaolin Chen, Yu Chen

H-52 Effects of Typical Electrical Parameters on Partial Discharge by Numerical Simulation 514

Ren Chengyan, Cheng Yonghong, and Yan PingH-53 Influences of Metal Mesh Wire on DBD in Air 515

Yun Yang, Guan-Jun Zhang, Guo-Qing YangH-54 Study on Outdoor Wideband Current Transducer for Partial Discharge Detecting in 516

Oil-filled Cable

Wang Xu, Wu Shengbin, Zhang Baihua, Sun Xiang and Gao Naikui

H-55 Pulsed Surface Discharge and Flashover Phenomena Across Silicon in Atmosphere 517

Wen-Bin Zhao, Guan-Jun Zhang, Nan Zheng and Zhang Yan

H-56 The Dielectric Response of Stator End-Winding Stress-Grading 518

N. Taylor andH. Edin

H-57 Study on the UHF Frequency Characteristics of the Typical Models PD in Air and Oil 519

Gong Xixiu Gao Shengyou Li FuqiH-58 Study on Pulse Current of Typical PD Models in High Voltage Oil-Filled Cable 520

Yu Du, Xiang Sun, Baihua Zhang, Xu Wang andNaikui Gao

H-59 Analysis of Corona Discharge Mechanism and Evaluation of Its PD Signal in AC Air Gap 521

with Metallic Particle

Y. Negara, M. Setoguchi, T Kurihara, J. Suehiro, N. Hayashi, S. Tsuru, J. Ichimaru and M. Hara

H-60 Evaluation of Distribution Line Spacers through the Leakage Current Monitoring 522

A. G. Kanashiro, W. Pinheiro and G. F. Burani

H-61 The Phenomenon of Electrochemical Tree in XLPE Cable Insulation Aging 523

Don Peng, Wen XiShan, Gong Ying and Meng GangH-62 The Dielectric Loss Method for Monitoring Insulation Condition of HV Cables 524

Qingguo Chen, Yonghong Wang, Xinlao Wei, Qingquan Lei

H-63 Effect of Simulated Atmospheric Pressure of 4000m and above on Breakdown Performance 525

ofShort Air-Gaps

XingliangJiang, Lichun Shu, JianlinHu, Zhijun Tian

H-64 Influence of arc on the dielectric properties of transformer oils 526

Suwarno

XXVIII


H-65 Experimental Investigation ofEPR Degradation Mechanism due to Electrical Ageing 527

Yanuar Z. Arief Katsunori Kawano, Yuji Urabe, Shinya Ohtsuka and Masayuki Hikita

H-66 Study on the Characteristics of PD and Pulse Waveform during the Aging of Oil-paper 528

Insulation in Oil-filled Cable

Jiang Yuao, Zhang Baihua, Gao Naikui, Sun Xiang, Wu Shengbin and Peng ZongrenH-67 Study on AC and DC Corona Inception Voltage at Different Air Pressure and Relative 529

Humidity Conditions

Hui Jianfeng, Guan Zhicheng, Wang LimingH-68 Dielectric Characteristics of N20 Gas and N20/C02 Gas Mixtures as SF6 Substitutes 530

Osamu Kinoshita, Naoto Koshino, Hiroki Kojima, Naoki Hayakawa, Fumihiro Endo, Masanobu

Yoshida, Toshiaki Ueda, Hitoshi Okubo

H-69 Acoustic Characteristics of Pulsed Corona Discharge in Salted Water 531

Liu Qiang, Sun Yaohong, Yan Ping, Zhang Shichang

H-70 Fractal Stochastic Modelling of Breakdown in Dielectric 532

Gu Chen, Yan Ping, Shao Tao and Zhang ShiChang

Session I: High voltage insulation systems for AC and DC

1-01 Silicone Gel as an Insulation Material for HV-Insulation Applications 533

Gemot Finis, Albert Claudi

1-02 The Influence of Surface Roughness and Dielectric Coating on AC and DC Breakdown 534

Voltage in SF6

Christoph Lederle, JosefKindersberger

1-03 Interaction of Pressure Forces and Spring Drive Mechanism in a SF6 Puffer Breaker at 535

Interruption of Short Circuit Currents

Carsten Leu, FrankReichert, Frank Berger

1-04 Dielectric Behaviour of Vacuum Circuit-Breakers 536

Michael Budde, Alexander Horn, Florian Korner, Michael Kurrat, Kathrin Steinke

1-05 Accelerated Ageing of Oil-Paper for the Assessment of Dielectric Capabilities of Aged 537

Transformers: Literature Review

H.-Z. Ding, Z. D. Wang, and P. Jarman

1-06 Electrical Treeing in XLPE Insulation in Frequency Range between 20 and 500 Hz 538

G Chen and CH Tham

1-07 A New Separable 170kV Outdoor Bushing System Creates a Multi-Purpose Transformer or 539

SwitchgearThomas Klein, Martin Schuster, Konstantin O. Papailiou

1-08 Synergism of Multistress Aged XLPE-Cable Insulation-Grasp of Interaction 540

M.Reuter, E.Gockenbach, H.Borsi

1-09 The Impact of Low Amplitude 100 Hz Vibrations on the Winding Insulation of Rotating 541

High Voltage Machines

T Weiers, D. Keller, R. Vogelsang

I-10 Charge Decay after Discharge of Rod-Plane Air Gap with Covered Electrodes 542

Frank Mauseth, Arne Nysveen and Erling Ildstad

I-11 Economic Design of Power Transformers High-Voltage Lead Exits Applying Optimized 543

Transformerboard Barrier Systems

Ch. Krause, G. Consogno, K-H. Witte

I-12 Development of Heat-resistant XLPE Cable and Accessories 544

H. Yamada, K. Miyake, Y. Murata and K. Kishi

1-13 V-t and V-N Characteristics of Insulation Elements with Large Scale Oil-Immersed 545

XXIX


Transformers

Shigemitsu Okabe, Takahiro Ohno, Eiichi Zaima

1-14 Simulation and Research of the STC (Synthetic Test Circuit) for Thyristor Valves for HVDC 546

by the Software PSCAD

Zhou Huigao, Xu Fan, Hu Zhilong, Huang Chao, Zheng Jun

1-15 Evaluation of the Reliability of Primary Equipment in Ge-Nan HVDC Transmission Project 547

Wang XiaoNing, Li GuangFan, Liu You Wei and Fan JianBin

1-16 Optically Powered Hybrid Current Transformer (OPCT) for Application in Circuit Breaker 548

Li Hong-bin, Chen Qing, Zhang Ming-ming, Wang Ben-jin, Liu Yan-bin

1-17 Application of a Coupled Numerical Technique to Model a Semiconductivc Material for 549

Electrical Power Termination Cable

Francois Buret, Thierry Toledo, Philippe Auriol

1-18 Insulation Performance of Cable-terminations with Resistive Stress-grading under High 550

Frequency VoltagesLi Ming, Fredrik Sahlen, Stefan Halen, Gerhard Brosig and Lars Palmqvist

I-19 Factors Affecting the Apparent Soil Resistivity of Multi-Layer Soil 551

O.E.Gouda, G. M.Amer andT. M.EL-Saied

1-20 Studies on Dielectric Performances of 800kV Insulation Configurations 552

Jian-Sheng Wang, Jian-Qiang Feng, Jia Tao

1-21 Tonal Noise Emission from Wet High Voltage Transmission Lines 553

C.Roero, T.H.Teich, M.Semmler and U.Straumann

1-22 Protection Method for Long HVDC Transmission Lines 554

D. Naidoo andN.M. Ijumba

1-23 Study on Impulse Voltage Characteristics of the Thyristor Valves 555

Cui Dong, Li Yan-Ming, Wang Jian-Sheng, Jia Tao, FengJian-Qiang

Session J: High voltage measurements, testing techniques and quality assurance

J-01 Transmission Power Cables On-site Partial Discharge Diagnosis 557

Edward Gulski, Paul P. Seitz, Frank de Vries, Frank Petzold

J-02 Resonant Test Systems for High-Voltage Testing of Super-Long Cables and Gas-Insulated 558

Transmission Lines

W. Hauschild, S. Schierig, P. Coors

J-03 Localization of Partial Discharge Sources Using a Differential Antenna Detector 559

N. Abedi, J. Szczechowski, H. Borsi, E. Gockenbach

J-04 Multi-channel PD measurements 560

Ronald Plath

J-05 A Self-balanced, Liquid Resistive, High Impedance HV Divider 561

M. Denicolai andJ. Hallstrom

J-06 A Simple Open Source Data Acquisition System Based on MATLAB® for Tektronix TDS 562

Series® Oscilloscopes

T. Vilela, E. G. da Costa, M. G. G. Neri and M. J. A. Maia

J-07 Correlation between Insulation Diagnostic Test and AC Breakdown Test for High Voltage 563

Induction Motor

Doo-Gyoon Byun, Hyun-Taek Shin andJin-WoongHongJ-08 Evaluation of Convolution to Assess the Performance of Impulse Dividers 564

R. Gobbo, G Pesavento

J-09 Impulse Current Testing 565

Michael Gamlin

xxx


Tsinghua University, Beijing, China, August 25-29,2005

J-10 Evaluating the Uncertainty of High Voltage Measuring Systems for Full Lightning Impulses 566

T. R. McComb

J-11 Overhead Line Audible Noise Measurements and Calculation Model for Snow and Frosty 567

Mist

Claus Lelh Bak, Soren Damsgaard Mikkelsen, Christian Jensen

J-12 Calibration of Voltage Transformers under Non-Sinusoidal Conditions 568

J. I. Juvik

J-13 Harmonisation ofData Processing Methods for High Power Laboratories 569

H. Kampfer, A. Lathouwers, C. Cherbaucich, N. Wikstrom, C Pons, S. Hamano

J-14 On the Comparative Evaluation of Test Methods for the Resistance Against Tracking and 570

Erosion Considering Silicones as Example

Jens Lambrecht, Udo Prucker

J-15 Evaluation of Potential Divider's Performance using Lightning Impulse Voltage Calibrator 571

for a Low-impedance Load

Shuji SATO and Tatsuya HARADA

J-16 Electrostatically Induced Voltage Generated in a Metal Box when a Charged Body Moves 572

Relation between the Aperture ofthe Box and the Induced Voltage

Norimitsu Ichikawa

J-17 Issues Relating to Long and Short Duration Impulse Current Waveforms 573

Andreas Beutel andJohn Van Coller

J-18 Multi-Segmented Eletrooptic Sensors for High-Voltage Measurements: Design and 574

Evaluation

J. C Santos, J. C. J. de Almeida, Wang LiMing andJ. RubiniJr, N. M. Abe, A. Passaro

J-19 High Voltage Oil Filled Cables-Optimization of the Time for Grounding 575

H. Tatizawa, E.W. Citron, P. F. Obase, N.M. Matsuo

J-20 Weibull Parameters Estimation from Uncensored Test Data Contaminated With Outliers 576

A. Galati, M. Marzinotto, C, Mazzetti

J-21 Electric Field Detector for Human Protection 577

Juan Ramos, Felix Vega, Henry Lopez, Francisco Roman

J-22 A New Fast Impulse Current Generator Based on the Floating Electrodes Properties 578

Oscar Diaz, Francisco Roman

J-23 Traceability of Very High Current Measurements: the STL Procedure for High Power 579

Laboratories

A.Lathouwers, C.Cherbaucich, H.Kaempfer, N. Wikstrom, C.Pons, S.Hamano

J-24 Research on a Type ofPower Supply Methods Foractive Electronic Current Transformer 580

Z. Qian, T. J. Li, C. M. Luo

J-25 Reduced the Threshold of Laser Inducing Breakdown in Atmosphere by Introducing 581

Electric-Spark

Zhang XianBin, Shi Wei, Chen YingLi, Li Hua

J-26 Harmonics Study for Single-Phase Transformer under DC Bias 582

Li XiaoPing, Wen XiShan, Lan Lei

J-27 A High Voltage Nanosecond Pulse Generator for Calibrating Voltage Dividers 583

LiuRui, ZouXiaobing, WangXinxin, Zeng Naigong and Han Min

J-28 The Mechanism Research of Measuring Directly the Lightning Supreme Steepness Using 584

Metal Tape

Wang Jufeng, Mao Xiaohu, Yang Wenbin

J-29 Fault Diagnosis ofTransformer OLTC Using Wavelet Singularity Detection 585

Wang Junde, Ji Shengchang

XXXI



J-30 HVDC Generator with Fast Polarity Reversal 586

Chao Xuexian, Qi Qingcheng1-31 Comparison of Wideband and Narrowband PD diagnostics in Gas Insulated Substations 587

FarshadElahigohar, Sander Meijer and Johan J. Smit

J-32 Impulse Voltage Measurement in Low Voltage Power Supply System during Impulse Voltage 588

Discharge

Wang Jianguo, Liu Yang, Chen Cixuan, Huang Ling and Rao ZhangquanJ-33 The Research of Line-selection of Single-phase Ground Faulty on Trickle Earthed System 589

Based on Spectrum Analysis

Liang LiHong, Wang DeJiangJ-34 Intelligent Design of Low Voltage Side Circuit in Active Electronic Current Transformer 590

Z. Qian, J.E. Lu, G.X. Zhang, CM. Luo

J-35 A Study and Simulation on Very Fast Transient Overvoltages in GIS 591

Zhang Bo, Lu Tiecheng, Wang Wendai

J-36 Development of Current and Voltage Sensor for Distribution Switchgear 592

W.J.Choe, J.M.Sohn, B. W.Lee, l.S.Oh

J-37 Patterning of UHF partial discharge signals of various defects in GIS 593

Sun-geun Goo, Kijun Park, Joosik Kwak andJin-yul Yoon

J-38 An Insulated Measurement Method for High Voltage Vacuum Circuit Breakers 594

Ryohei Sakuma, Shinsuke Suzuki, Eiji Kaneko, Yoshihiko Matsui, Osami Morimiya, Satoru Yanabu

J-39 Using a Step Recovery Diode to Generate Repeatable Pulses for Partial Discharge 595

Simulation

Martin D. Judd, David Gray andAlistair J. Reid

J-40 Implementation of the Leader Progression Model in Statistical Insulation Coordination 596

Mohd.ZainalAb-Kadir, Ian Cotton

J-41 Significance of Capacitance and Dissipation Factor Tip-Up Measurements in the Insualting 597

System ofHigh Voltage Rotating Machines

Mohsen Farahani, Hossein Borsi, Ernst Gockenbach

J-42 Calibration Reproducibility in Partial Discharge Measuring Systems 598

R. Gobbo, G. Pesavento, A. Scroccaro

J-43 Humidity Influence on Switching-Impulse Breakdown Voltage of Air Gaps for Indoor 599

High-Voltage Installations

Dong Wu, Gunnar Asplund, Bjorn Jacobson, Ming Li, and Fredrik Sahlen

J-44 Full Scale Frequency Response Calibration of CT 600

J. I. Juvik

J-45 Comparisons between Impulse Voltage Calibrators and Digitisers 601

YLi and T Wakimoto

J-46 Quality Control of XLPE Cables by means of Impulse Voltage Test 602

R. Woschitz, M. Muhr, Ch. Sumereder

J-47 A Hybrid-optical Direct Current Transformer 603

Zhao Qingjiao, Zhang Guixin, Luo ChengmuJ-48 Development of a Standardizing Device for Rogowski Coil 604

Lu Liang, Mou Lei, Liu Jiaqi and Li Yanming

J-49 Development of a Broad Bandwidth High Voltage Divider 605

Lu Liang, Wang Song, Zhou Huigao, Wang An and Li YanmingJ-50 Development of a New Type Dielectric Loss Angle Tester for Capacity-Type Equipment 606

Xiaofei Gao, Jiaquan Yang, Shun Yao and Zhongru Shen

J-51 Simulation Tests of Suppressing VFT in GIS by Magnetic Rings 607

XXXII


Liu Weidong, Xiang Zhutao, Qian Jiali

J-52 Operation of Surge Arresters with Polluted Housing 608

Stephan Harasym, Adrian HarasymJ-53 Measurement of Detailed Spatial and Temporal Structure of a High-Voltage Pulsed 609

Nanosecond DischargeA. V. Krasnochub, A. Yu. Starikovskii, S.M. Starikovskaya.

J-54 An Application of the Novel Techniques Detecting Partial Discharge Employable to GIS 610

Using Optical Sensor

C. H. Ryu, J. Y. Koo, Y M. Chang, W.J. KangJ-55 Research of Anti-Interference Technique of PD in High Voltage Oil-Filled Cable Based on 611

Wavelet

Jiang Yuao, Sun Xiang, Wu Shengbin, Zhang Baihua, Gao Naikui

J-56 SF6-Insulated, Frequency-Tuned Resonant Test System for Spacer Testing with AC Voltage 612

up to 1000 kV

R. Pietsch, W. Hauschild, P. Coors C.B. Lee R. Streland

1-51 A Possible Application of Pockels Sensor for Detecting Partial Discharge in GIS Using 613

Artificial Defect

C. H. Ryu, J. Y. Koo, Y. M. Chang, W.J. KangJ-58 Determining Impulse Generator Settings for Various Test Cases with the Help of a 614

Www-Based Simulation Program

Wolfgang Schujft, Wolfgang Hauschild, RalfPietsch

J-59 Proving the Controllability for Arbitrary Operating Point of STATCOM 615

ZhangLiuchun, Xiao Dengming, Zhang DongJ-60 Contrast Measurement of the Monolayer Shielding Room's Transient Magnetic Shielding 616

Effectiveness

Zhou WenJun, Wang JianGuo, Rao ZhangQuan, YuJun, Ma Bin andLiXuan

1-61 Measurement of Power Frequency Electric & Magnetic Field in a 500kV Substation 617

Rao ZhangQuan, Wang JianGuo, Zhou WenJun, YuJunl and Ma Bin

J-62 Test Methods for Life Time Estimation ofADSS-Cables 618

David Wartschinski, Frank Berger1-63 Study on Pin-pointing Technique for Fault Location of Power Cable 619

Jiantao Sun, Qingguo Chen, Yonghong Wang, Xinlao Wei

1-64 Study on Calibration of Electronic Current Transformers 620

Zhu Dapeng, Mei Zhigang, Zhang Guixin, Luo Chengmu

J—65 Study on Control Techniques of Travel Characteristics of Vacuum Circuit Breaker with 621

Permanent Magnetic Actuator

Huang Yulong, Shao Shengnan, Wang Jingjun, Xu Guozheng and Qian Jiali

1-66 Lightning Test and Analysis for Optical Fiber Composite Overhead Ground Wires 622

HuYi, Wang LiNong, LiuKai, Ye Tinglu, Wang Feng

1-61 Technique and Equipment of Prequalification Test for EHV Cable Systems in China 623

Yang Liming, Xu Linhua

Author index 625

XXXIII

'International Symposium on High Voltage Engineering ; 14 ...

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