58th Annual Conference for Protective Relay Engineers, 2005.最新文献_第2页

Aggressive electromechanical relay panel replacement project at TXU electric delivery 积极的机电继电器面板更换项目在TXU电气交付

58th Annual Conference for Protective Relay Engineers, 2005. Pub Date : 2005-04-05 DOI: 10.1109/CPRE.2005.1430432

A. Jeżak, R. Garcia

引用次数: 5

Upgrading intertie protection to meet Texas public utility commission rules 升级电网保护以满足德州公用事业委员会的规定

58th Annual Conference for Protective Relay Engineers, 2005. Pub Date : 2005-04-05 DOI: 10.1109/CPRE.2005.1430439

L. Matus, G. Dalke

引用次数: 0

Applying digital line current differential relays over pilot wires 在导频线上应用数字线路电流差动继电器

58th Annual Conference for Protective Relay Engineers, 2005. Pub Date : 2005-04-05 DOI: 10.1109/CPRE.2005.1430443

I. Voloh, R. Johnson

引用次数: 15

Power transformer neutral grounding reactor application and distribution feeder protection issues at CenterPoint Energy 中心点能源公司电力变压器中性点接地电抗器应用和配电馈线保护问题

58th Annual Conference for Protective Relay Engineers, 2005. Pub Date : 2005-04-05 DOI: 10.1109/CPRE.2005.1430419

P. Sorrells, A. Benítez

引用次数: 6

Arc flash hazard analysis and mitigation 电弧闪光危害分析与缓解

58th Annual Conference for Protective Relay Engineers, 2005. Pub Date : 2005-04-05 DOI: 10.1109/CPRE.2005.1430429

C. Inshaw, R.A. Wilson

引用次数: 47

Implementation of an unconventional voltage slide scheme 实现一种非常规的电压滑动方案

58th Annual Conference for Protective Relay Engineers, 2005. Pub Date : 2005-04-05 DOI: 10.1109/CPRE.2005.1430425

I.L. van der Merwe, J. Cloete, N. Fischer

{"title":"Implementation of an unconventional voltage slide scheme","authors":"I.L. van der Merwe, J. Cloete, N. Fischer","doi":"10.1109/CPRE.2005.1430425","DOIUrl":"https://doi.org/10.1109/CPRE.2005.1430425","url":null,"abstract":"Eskom experienced a voltage collapse condition in part of its subtransmission network. The network consists of a number of subtransmission substations that are interconnected and fed from three transmission substations. The voltage collapse condition occurred after a protection operation cleared a fault on one of the 132 kV lines feeding the network from one of the transmission substations. Network studies have shown that the source is relatively weak and that a voltage collapse will occur again if any one of a number of lines from the source transmission substations is tripped out due to a fault. From a solution point of view, constructing additional lines feeding into the network from the transmission substations would solve the problem. However, the load in the area is of such a nature that it is not possible to economically justify the construction of new lines. The paper finally focuses on one specific solution that was selected as being the most appropriate and cost effective. In summary, this solution is an undervoltage load-shedding scheme. The system studies showed that a conventional definite-time undervoltage load-shedding scheme would not provide much benefit. A unique undervoltage algorithm was developed so that load could be shed at selected substations based on the voltage depression at that substation, while still supplying a large part of the network. This unique algorithm was required because voltage at specific substations greatly differs depending on the various contingencies of incoming feeders tripping. The algorithm uses inverse time to shed load based on the severity of the voltage collapse at a specific substation. A modern numerical relay enabled the user to freely program unique algorithms, and could also be used to perform tripping. The paper discusses this solution and its implementation.","PeriodicalId":395312,"journal":{"name":"58th Annual Conference for Protective Relay Engineers, 2005.","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122782803","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

High-speed distribution protection made easy: communications-assisted protection schemes for distribution applications 高速配电保护变得容易:用于配电应用的通信辅助保护方案

58th Annual Conference for Protective Relay Engineers, 2005. Pub Date : 2005-04-05 DOI: 10.1049/CP:20051193

R. Moxley, K. Fodero

{"title":"High-speed distribution protection made easy: communications-assisted protection schemes for distribution applications","authors":"R. Moxley, K. Fodero","doi":"10.1049/CP:20051193","DOIUrl":"https://doi.org/10.1049/CP:20051193","url":null,"abstract":"Communications-assisted protective schemes in transmission applications have been in service for decades. Recommendations for scheme application are well established, depending on the type of channel. Communications typically used for transmission line applications include power-line carrier, microwave, and optical fiber. With more emphasis being placed on distribution system reliability, there is a need to establish protection methods for the varying communications being used on these systems. By their nature, distribution lines are different from transmission lines. They are generally shorter, they have more tapped loads, and load currents are frequently on the same order of magnitude as fault currents. Communications systems are also different from those used on transmission lines, with associated differences in errors, outages, and signal-transmission reliability. This paper examines different communication paths for protection signals, such as spread-spectrum radio, fiber-optic cable, phone lines, and copper pilot wire. Data transmission statistics with performance measures are given for each type of communication. Based on the communication characteristics and its performance during faults, different protection schemes are studied, with total clearing times given for each scheme. The consequences of communications failure on each type of scheme are examined, including the possibility of misoperation, as well as backup clearing times.","PeriodicalId":395312,"journal":{"name":"58th Annual Conference for Protective Relay Engineers, 2005.","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123277261","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: 28

System protection and control task force's initial recommendations concerning NERC recommendation 8A loadability requirements on transmission protective relaying systems 系统保护和控制工作组关于传输保护继电系统的NERC建议8A负载性要求的初步建议

58th Annual Conference for Protective Relay Engineers, 2005. Pub Date : 2005-04-05 DOI: 10.1109/CPRE.2005.1430438

M. Carpenter

引用次数: 1

Staged-fault testing for high impedance fault data collection 高阻抗故障数据采集的分段故障测试

58th Annual Conference for Protective Relay Engineers, 2005. Pub Date : 2005-04-05 DOI: 10.1109/CPRE.2005.1430417

M. Carpenter, R. Hoad, T. Bruton, R. Das, S. Kunsman, J. M. Peterson

{"title":"Staged-fault testing for high impedance fault data collection","authors":"M. Carpenter, R. Hoad, T. Bruton, R. Das, S. Kunsman, J. M. Peterson","doi":"10.1109/CPRE.2005.1430417","DOIUrl":"https://doi.org/10.1109/CPRE.2005.1430417","url":null,"abstract":"Faulted lines must be repaired and returned to service in the shortest possible time to provide reliable service to the customers. Fault detection is an important aspect of system protection, as it involves personnel as well as equipment safety. The research on high impedance fault (HTF) detection techniques is mainly based on conventional methods, familiar to the power system engineers. TXU Electric Delivery (TXUED) and ABB have initiated a project to collect HIF data from staged-fault testing, to assist ABB in the research and development of suitable techniques for detecting high impedance faults. Since most protective relay engineers have spent their careers avoiding faults on the electric system, they are not usually comfortable with the process of staging faults on a system in service. The purpose of this paper is to describe one method of staging faults that is both safe for utility personnel performing the tests and results in no interruption or break in service to the utility consumers connected to the distribution feeder. Also, the analysis of the resulting HIF test data is discussed. These staged fault tests occurred on January 27-29, 2004 and also on September 27-28, 2004 on a distribution feeder at the TXU Huntington Substation near Lufkin, Texas.","PeriodicalId":395312,"journal":{"name":"58th Annual Conference for Protective Relay Engineers, 2005.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133208884","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

Implementation and operational experience of a wide area special protection scheme on the SRP system 基于SRP系统的广域特殊保护方案的实施和操作经验

58th Annual Conference for Protective Relay Engineers, 2005. Pub Date : 2005-04-05 DOI: 10.1109/PSAMP.2006.285384

J. Sykes, M. Adamiak, G. Brunello

{"title":"Implementation and operational experience of a wide area special protection scheme on the SRP system","authors":"J. Sykes, M. Adamiak, G. Brunello","doi":"10.1109/PSAMP.2006.285384","DOIUrl":"https://doi.org/10.1109/PSAMP.2006.285384","url":null,"abstract":"Summary form only given. As the existing transmission system infrastructure is challenged to support loads beyond original design limits, the implementation of \"wide area\" power system protection systems (PSPS) are often needed to maintain transmission system integrity. Such a system, with stringent performance and availability requirements, has recently been designed and installed on the salt river project (SRP) system. In particular, measurements of generation levels on one side of the system must affect load balance on the other side of the system over 150 miles away in less than 1 second. This paper starts by presenting the need for the PSPS and the resulting design requirements. It then discusses the architecture that resulted from the requirements and the subsequent implementation and testing issues. Actual operation and performance results, including end-to-end timing tests, will be presented. The paper concludes with a discussion of desired improvements in the architecture and new solutions that are available through the generic object oriented substation event (GOOSE), virtual LAN (VLAN), and priority messaging technologies that are now available through the IEC 61850 communication protocol.","PeriodicalId":395312,"journal":{"name":"58th Annual Conference for Protective Relay Engineers, 2005.","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125134546","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: 23