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2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America最新文献

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OPGW Installation in Energized Transmission Line OPGW在带电输电线路中的安装
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311398
F. Nishimura, L. D. Cicarelli, R. Arellano, M. R. Soares
{"title":"OPGW Installation in Energized Transmission Line","authors":"F. Nishimura, L. D. Cicarelli, R. Arellano, M. R. Soares","doi":"10.1109/TDCLA.2006.311398","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311398","url":null,"abstract":"Although the installation of OPGW (optical ground wire) in existing transmission line has often been carried out by power transmission companies worldwide, power system operators has been imposing restrictions to the planned outages of the transmission lines. Because of this, the power transmission companies have opted for the OPGW stringing with energized transmission lines. A quite safe and productive methodology called \"carrier\" was adopted. The method consists in using a self-propelled carrier that slides on existing grounding wire, while pulling an aramid rope and positioning several double pulleys. The OPGW gets strung by pulleys and then replaces the existing ground wire. This paper describes the experience of several OPGW stringing, including methodology and tools used, advantages and main results achieved. Additionally, it shows how team training was conducted and security measures undertaken","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126849050","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: 7
Voice, Video and Data Transmission over Electrical Power Supply Networks. PLC (Power Line Communications): A Last Mile Alternative for Venezuela 电力供应网络上的语音、视频和数据传输。PLC(电力线通信):委内瑞拉最后一英里的替代方案
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311563
L.R. Madera
{"title":"Voice, Video and Data Transmission over Electrical Power Supply Networks. PLC (Power Line Communications): A Last Mile Alternative for Venezuela","authors":"L.R. Madera","doi":"10.1109/TDCLA.2006.311563","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311563","url":null,"abstract":"In general terms, the public telecommunication networks in Venezuela are conformed by access, transport and core networks. The locations where does not exist telecommunications services but there are users, generally there exist electrical service, which allows the utilization of the electrical systems as the access network. During the development of this research we consulted documentation related to PLC implementations in Europe, which allowed to establish how to constitute a based PLC network, which are the elements that need to be considered, aspects related with electromagnetic compatibility, and transmission speed researched, also it was consulted the PLC systems description developed by vendors associations and organisms without profit aims, doing more specific in testing PLC systems and results. This paper presents the research results of information transmission systems over low and medium electrical power supply networks, as a last mile alternative for access to the public telecommunication network in Venezuela using PLC","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126224784","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
Signal Analysis Using Fourier-like Wavelets 类傅立叶小波的信号分析
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311514
L. R. Soares, Hélio M. de Oliveira, R. Cintra
{"title":"Signal Analysis Using Fourier-like Wavelets","authors":"L. R. Soares, Hélio M. de Oliveira, R. Cintra","doi":"10.1109/TDCLA.2006.311514","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311514","url":null,"abstract":"In continuous-time wavelet analysis, most wavelet presents some kind of symmetry. Based on the Fourier and Hartley transform kernels, a new wavelet multiresolution analysis has been proposed. This approach is based on a pair of orthogonal wavelet functions and can be named as the Fourier-like and Hartley-like wavelet analysis. In this paper we carry a preliminary investigation about potentials applications for the Fourier-like wavelet analysis on signals derived from power systems to illustrate the behavior of such wavelets","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126569072","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: 3
First Substation with IEC61850 Commissioned in the Americas 美洲第一个符合IEC61850标准的变电站投入使用
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311500
J. Rodrigues, L. Soldani, G. Wong
{"title":"First Substation with IEC61850 Commissioned in the Americas","authors":"J. Rodrigues, L. Soldani, G. Wong","doi":"10.1109/TDCLA.2006.311500","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311500","url":null,"abstract":"The first substation in operation using IEC61850 in the Americas was Bujama of Luz del Sur in Peru. In this substation the standard was applied and fulfils all the requirements for substation automation. This paper describes this substation and the equipment","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116669854","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: 8
Load Characterization in Medium Voltage of an Electric Distribution Utility Related to Active Filters 与有源滤波器有关的配电设备中压负荷特性
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311418
F. Corasaniti, M. B. Barbieri, P. L. Arnera, M. Valla
{"title":"Load Characterization in Medium Voltage of an Electric Distribution Utility Related to Active Filters","authors":"F. Corasaniti, M. B. Barbieri, P. L. Arnera, M. Valla","doi":"10.1109/TDCLA.2006.311418","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311418","url":null,"abstract":"The behavior of the actual load of an electric energy distribution utility by means of voltage and current measurements is analyzed in this paper. Steady and transient states are taken into account. The main attention is fixed in points where present shunt compensation is installed. Results of field measurements and the connection and disconnection of capacitor banks are shown. Studies for future compensation are detailed and the possible advantages of active filter incorporation are analyzed in order to replace or complement the existing compensation. The minimal requirements are established in order to consider the design of the active filters and their compatibility with the existing installations","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123751009","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: 9
Study of Active Electric Energy Meters Behavior of Induction and Electronic Types 感应式和电子式有源电能表的性能研究
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311557
R. Caceres, R. Corrêa, P. Ferreyra, E. Cordero
{"title":"Study of Active Electric Energy Meters Behavior of Induction and Electronic Types","authors":"R. Caceres, R. Corrêa, P. Ferreyra, E. Cordero","doi":"10.1109/TDCLA.2006.311557","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311557","url":null,"abstract":"A detailed study is presented on electric energy meters and its diverse technologies. The measure error variation as time function is shown, starting from the creation of a database. Such a database was loaded with experimental results, begun in the decade of the 1980 for electromagnetic meters and in 1990 for electronic meters. The experimental tests included the error determination with loads corresponding to 10%, 50% and 100% of the rated current (In), for unitary power factor. From the experimental study it is concluded that induction meters are not obsolete for active energy measurement, with lineal loads or with current distortions (THDi) smaller than 20%. The error is increased when decreasing the load current, and it increases lightly in the time. It is also deduced that electronic meters present a series of advantages in comparison to the induction ones, as for example: not being affected their measurement by the load non-linearity, difficult the fraud actions and offering numerous additional benefits","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"316 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121349079","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: 16
Latin-American Experience about Appliance Damage Caused by System Perturbations 拉丁美洲关于系统扰动造成电器损坏的经验
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311577
J. Gómez, M. Morcos
{"title":"Latin-American Experience about Appliance Damage Caused by System Perturbations","authors":"J. Gómez, M. Morcos","doi":"10.1109/TDCLA.2006.311577","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311577","url":null,"abstract":"A study covering several Latin-American countries about appliances damaged supposedly due to perturbations coming from the distribution system is presented. The antagonist situation existing among utilities, customers, regulatory institution, and equipment manufacturer is discussed. The study is based mainly in a collection of databases of utilities, and consumer associations, plus journal published information and own experiments on market available appliances. Results of experiment carried out on appliances are presented, showing a high weakness to impulse type overvoltages. A damage index is proposed, giving the values determined from the study. The phenomena that can be more damaging for appliances are transient overvoltages, long time overvoltages, undervoltages and unbalances. Most of the damage causes are due to low voltage system problems, originated in human errors, poor maintenance and storms. Furthermore, appliances withstand capability is extremely low and do not meet international requirements. The percentile of false complaints is at least 10 %","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125171995","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
Saturation of Current Transformers and its Impact on Digital Overcurrent Relays 电流互感器饱和及其对数字过流继电器的影响
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311516
Ibrahim. El-amin, Nabil Al-abbas
{"title":"Saturation of Current Transformers and its Impact on Digital Overcurrent Relays","authors":"Ibrahim. El-amin, Nabil Al-abbas","doi":"10.1109/TDCLA.2006.311516","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311516","url":null,"abstract":"Improper selections of current transformers will result in CT's saturation during fault conditions which can affect protection relays operations. With the absence of clear and practical guidelines for CT's selections, designers are facing great difficulties to ensure proper operations of digital relays. The impact of CT saturation is different for different protection devices and schemes. This paper investigates the influence of CT saturation on over-current digital relays, in distribution systems where loads are relatively small and connected to switch-gears with high short circuit levels. A research was performed to verify the operations of instantaneous and time-delayed over-current digital relays to ensure coordination with other devices and safe isolations of faults. It is shown that instantaneous digital relays will perform properly with a relatively small CT's. A criterion for selecting CT's for instantaneous digital over-current relays operations is presented. However, time-delayed over-current relays will be significantly impacted by CT's saturation and special care shall be taken to achieve coordination with other devices","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122619744","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: 25
Experience in OPGW Cables Selection for Overhead Transmission Live Lines 具有架空输电火线OPGW电缆选型经验
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311460
A. Aguiar, M. Perez
{"title":"Experience in OPGW Cables Selection for Overhead Transmission Live Lines","authors":"A. Aguiar, M. Perez","doi":"10.1109/TDCLA.2006.311460","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311460","url":null,"abstract":"Since 1996 CVG EDELCA has built overhead transmission lines employing optical ground wire cable (OPGW) instead of conventional ground wire, and nowadays, it is replacing conventional ground wire by OPGW cable in about 1366 km of overhead transmission live lines, it's important to review the standards, manufacturers' recommendations, OPGW cable configurations, selection of materials and acceptance criteria tests, in order to take them into consideration for the accomplishment of engineering's specifications of the optical ground wire, and in this way, to assure the data transmission's quality and electromechanical behavior of the cable, in accordance to optical, physical, electrical and mechanical requirements of the project. In this paper, the process of selection of the OPGW cable based on engineering's specifications, previous experiences, methods and standardized test procedures are described","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121755681","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: 12
Generalized Renewal Process as an Adaptive Probabilistic Model 广义更新过程作为自适应概率模型
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311621
P. Jiménez, R. Villalón
{"title":"Generalized Renewal Process as an Adaptive Probabilistic Model","authors":"P. Jiménez, R. Villalón","doi":"10.1109/TDCLA.2006.311621","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311621","url":null,"abstract":"The model denominated generalized renewal process (GRP) is patented of the Maryland University. It is based on a probabilistic function that depends on the operation time from the last time, the previous times (historical data) and three parameters: shape, scale and effectiveness. This model is adjusted to the data considering the magnitude and the occurrence order, which is not possible using the traditional models; this property is denominated adaptability. Although the model was created originally to estimate the repairable systems reliability (it is adjusted using the successive corrective maintenances, and it measures its effectiveness), it is possible to apply it to any probabilistic process as: eolic and lightning. For performing this, a MAPLE language coded algorithm was designed. This paper suggests to simplify the PGR model to the three parameters Weibull distribution, applying the least square estimation. The model functionality is verified, applying it to an electrical and eolic system","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133252706","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: 8
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