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ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand最新文献

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Locating defects in high voltage transmission lines 高压输电线路缺陷定位
ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand Pub Date : 1998-04-26 DOI: 10.1109/TDCLLM.1998.668371
G. Jaensch, H. Hoffmann, A. Markees
{"title":"Locating defects in high voltage transmission lines","authors":"G. Jaensch, H. Hoffmann, A. Markees","doi":"10.1109/TDCLLM.1998.668371","DOIUrl":"https://doi.org/10.1109/TDCLLM.1998.668371","url":null,"abstract":"Methods of locating defects in overhead high voltage and extra-high voltage transmission lines are described and evaluated. Included is a technology which utilizes corona partial discharge detection to find faulty conditions while simultaneously performing routine visual inspections from a helicopter. The corona inspection system proved to be very useful in locating broken strands, loose spacers, insulators with internal or external discharges, and other faulty line conditions.","PeriodicalId":328713,"journal":{"name":"ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126628406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 27
Lattice tower ground line corrosion and mitigation; a case study 格塔接地线腐蚀及缓释;案例研究
ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand Pub Date : 1998-04-26 DOI: 10.1109/TDCLLM.1998.668385
G. J. Oberst
{"title":"Lattice tower ground line corrosion and mitigation; a case study","authors":"G. J. Oberst","doi":"10.1109/TDCLLM.1998.668385","DOIUrl":"https://doi.org/10.1109/TDCLLM.1998.668385","url":null,"abstract":"This typical tower line is an example of what happens to steel structures which go without maintenance for extended periods. A method of inspection, repair and below ground line maintenance is presented. This paper addresses only lattice towers on grillage foundations. The recognition that below ground steel may not be in the same condition as above ground steel is presented along with a repair method for legs and bracing which have been damaged by corrosion.","PeriodicalId":328713,"journal":{"name":"ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128438713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Live work in Eskom Transmission 在Eskom输电公司工作
ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand Pub Date : 1998-04-26 DOI: 10.1109/TDCLLM.1998.668325
C. Marshall, H. Visser
{"title":"Live work in Eskom Transmission","authors":"C. Marshall, H. Visser","doi":"10.1109/TDCLLM.1998.668325","DOIUrl":"https://doi.org/10.1109/TDCLLM.1998.668325","url":null,"abstract":"Live line maintenance has been performed with great success by Eskom Transmission (South Africa) over the last 20 years. An aerial live line maintenance capability was established 10 years ago. Techniques, tools and procedures have been developed to maintain the South African transmission network, which is unique in many ways, to a level that meets the expectations of customers as far as quality, availability and reliability of supply is concerned. Challenges have been met with innovative tool, transportation and technique design and development.","PeriodicalId":328713,"journal":{"name":"ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130837113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Enhancing power system dynamic and steady-state performance with past-switched shunt compensation to postpone major bulk transmission capital investments 通过过去切换并联补偿提高电力系统的动态和稳态性能，以推迟大规模输电资本投资
ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand Pub Date : 1998-04-26 DOI: 10.1109/TDCLLM.1998.668380
B. Ray
{"title":"Enhancing power system dynamic and steady-state performance with past-switched shunt compensation to postpone major bulk transmission capital investments","authors":"B. Ray","doi":"10.1109/TDCLLM.1998.668380","DOIUrl":"https://doi.org/10.1109/TDCLLM.1998.668380","url":null,"abstract":"Electric power delivery system capability is constrained by several engineering considerations: thermal ratings of equipment; voltage control capability; and dynamic stability. Dynamic stability and voltage control-related restrictions frequently impose transmission system utilization limits significantly lower than those arising from thermal considerations. Management and control of reactive power supply to satisfy increasing use of the bulk power transmission system has become of increased concern for electric utilities. This is because reactive power control determines the power system voltage profile. Relaxing nonthermal transmission limitations often can be achieved by providing adequate amounts of fast-acting reactive power supply capability. Experience at Northern States Power Company (NSP) has shown that high-speed mechanically switched shunt capacitors often are an economical alternative to static VAr compensators. Such capacitors, equipped with properly designed control systems utilizing modem devices, can in certain applications provide the enhanced reactive power control capability required to improve power system performance to levels which permit increased loadability. Postponement of major capital investment in increased transmission capacity is sometimes achievable by such power capacitor installations. Designing a bulk transmission system which is independent of generation supply (and the associated reactive power output) location is important because of the dynamic energy sourcing market expected in the near future.","PeriodicalId":328713,"journal":{"name":"ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123030024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Development of new technology to access the energized phase by walking along the strain string on 500 kV transmission lines and substations 开发在500kv输电线路和变电站上沿应变串行走进入通电相的新技术
ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand Pub Date : 1998-04-26 DOI: 10.1109/TDCLLM.1998.668344
L.A.X. Assad, A. Braga
{"title":"Development of new technology to access the energized phase by walking along the strain string on 500 kV transmission lines and substations","authors":"L.A.X. Assad, A. Braga","doi":"10.1109/TDCLLM.1998.668344","DOIUrl":"https://doi.org/10.1109/TDCLLM.1998.668344","url":null,"abstract":"The maintenance of 500 kV transmission lines and substations requires a great amount of manual services on its insulator strain strings, conductors and hardware. The conventional method of gaining access to the hot end of strings uses a long insulated ladder (longer than 6 m), numerous accessories, which involves great effort and the work of many electricians. This paper looks into a method developed by ELETRONORTE to access the energized parts of transmission lines and substations by walking directly on the insulator strain string without having to use an insulated ladder. The results of the experiment show that this method can meet safety standards. This method was further experimented on suspension strings. However, the outcome of such an experiment led us not to recommend its use.","PeriodicalId":328713,"journal":{"name":"ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121018246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Damage of Nonceramic Insulator End Fittings by Power Arc Currents 非陶瓷绝缘子端部接头在电弧电流作用下的损伤
ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand Pub Date : 1998-04-26 DOI: 10.1109/TDCLLM.1998.668389
R. Matsuoka, K. Tanaka, H. Shinokubo, J. Burnham
{"title":"Damage of Nonceramic Insulator End Fittings by Power Arc Currents","authors":"R. Matsuoka, K. Tanaka, H. Shinokubo, J. Burnham","doi":"10.1109/TDCLLM.1998.668389","DOIUrl":"https://doi.org/10.1109/TDCLLM.1998.668389","url":null,"abstract":"The damage to weathersheds of nonceramic insulators caused by fault current flowing during a flashover may not be significant for subsequent operation of the transmission line. However, the fault current may result in reduction of the insulator's mechanical strength and possible line dropping. Due to the concerns of a major electric utility user of nonceramic insulators, the effects of fault current on the strength of nonceramic insulators were investigated by power arc tests conducted in a laboratory. This testing focused on the effect of fault currents on the galvanized layer, the effect on the compression end fitting strength and the special case of high contact resistance caused by corroded end fittings.","PeriodicalId":328713,"journal":{"name":"ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115654682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Distribution line safety grounding: parametric analysis 配电线路安全接地:参数分析
ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand Pub Date : 1998-04-26 DOI: 10.1109/TDCLLM.1998.668383
F. Dawalibi, R. Southey, P. Hotte
{"title":"Distribution line safety grounding: parametric analysis","authors":"F. Dawalibi, R. Southey, P. Hotte","doi":"10.1109/TDCLLM.1998.668383","DOIUrl":"https://doi.org/10.1109/TDCLLM.1998.668383","url":null,"abstract":"This paper presents key results of a parametric analysis which quantifies and compares the effectiveness of different safety grounding methods on overhead, radial, distribution systems operating at voltages up to 86.6 kV. The analysis, comprising approximately 10000 computer simulations, studied direct energization and magnetic field induction scenarios (load and fault conditions), systems with and without grounded neutrals, and the influence of a large number of system parameters on work site voltages. This paper presents, in graphical form, the ranges of voltages resulting from variations in the parameters studied and discusses these results. These can be used to evaluate lineman safety on a large variety of overhead distribution systems.","PeriodicalId":328713,"journal":{"name":"ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121733668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An experimental composite low EMF line for 66-170 kV 66 ~ 170 kV复合低电动势试验线
ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand Pub Date : 1998-04-26 DOI: 10.1109/TDCLLM.1998.668398
H. Bohme, G. Dimarco, R. Giampieretti, G. Klinga
{"title":"An experimental composite low EMF line for 66-170 kV","authors":"H. Bohme, G. Dimarco, R. Giampieretti, G. Klinga","doi":"10.1109/TDCLLM.1998.668398","DOIUrl":"https://doi.org/10.1109/TDCLLM.1998.668398","url":null,"abstract":"An environmentally friendly, compact overhead power line for rated voltages 66 (72.5) to 150 (170) kV is described. The line is characterized by a vertical conductor arrangement and by a tower with an insulating pole head using hollow polymeric post insulators with the earth-wire connection inside. The EM field (EMF) values are significantly reduced using a compensation loop, which is fed by a current pickup loop designed and adapted to the line conductors in a unique arrangement.","PeriodicalId":328713,"journal":{"name":"ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124188305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Anchor rod inspection using nondestructive evaluation 锚杆无损检测技术
ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand Pub Date : 1998-04-26 DOI: 10.1109/TDCLLM.1998.668386
A.K. Pandey, A. H. Stewart, S. Luther
{"title":"Anchor rod inspection using nondestructive evaluation","authors":"A.K. Pandey, A. H. Stewart, S. Luther","doi":"10.1109/TDCLLM.1998.668386","DOIUrl":"https://doi.org/10.1109/TDCLLM.1998.668386","url":null,"abstract":"Many overhead transmission line structures are supported by guy wires anchored to the earth with rods. Under certain conditions, these anchor rods will corrode along their length and no visual inspection or other inspection methods are available to detect the presence of corrosion wastage without excavation. Concerns over the integrity of anchor rods promoted initiation of a research project to develop a nondestructive evaluation (NDE) method for detecting anchor rod corrosion. This paper describes the application of the NDE method to inspect anchor rods from 115, 230, and 500 kV transmission lines. The development of portable and rugged field inspection equipment is also discussed.","PeriodicalId":328713,"journal":{"name":"ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114307168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Automated apparatus for live work on overhead transmission lines 架空输电线路带电工作用自动装置
ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand Pub Date : 1998-04-26 DOI: 10.1109/TDCLLM.1998.668326
E. Udod, V. Molchanov, V. Taloverya, N. Ivanov, V. Dyakov, A. Rubanenko, G. Gela
{"title":"Automated apparatus for live work on overhead transmission lines","authors":"E. Udod, V. Molchanov, V. Taloverya, N. Ivanov, V. Dyakov, A. Rubanenko, G. Gela","doi":"10.1109/TDCLLM.1998.668326","DOIUrl":"https://doi.org/10.1109/TDCLLM.1998.668326","url":null,"abstract":"An automatic device for live working on overhead power transmission lines is under development in the Ukraine. The automated plug-in unit for insulator replacement (APUIR) employs robotized plug-in sub-assemblies to replace defective insulators and perform other tasks. The APUIR, which is mounted on an insulated lifting arm and is operated by a computer or an operator at ground level, is placed on an insulator string to release the tension of the string and to remove and install insulator units. The arm's hydraulic system powers some plug-ins and drives an alternator, which powers video cameras and other electrical devices of the automatic unit for insulator replacement (AUIR) that forms the main working component of the APUIR.","PeriodicalId":328713,"journal":{"name":"ESMO '98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings ESMO '98 Proceedings. ESMO 98 The Power is in Your Hand","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133035267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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