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Papers Presented at the 33rd Annual Conference Rural Electric Power Conference最新文献

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Energy conservation for rural electric systems in the United States and China 美国和中国农村电力系统的节能
Papers Presented at the 33rd Annual Conference Rural Electric Power Conference Pub Date : 1989-04-30 DOI: 10.1109/REPCON.1989.95527
M. Chen
{"title":"Energy conservation for rural electric systems in the United States and China","authors":"M. Chen","doi":"10.1109/REPCON.1989.95527","DOIUrl":"https://doi.org/10.1109/REPCON.1989.95527","url":null,"abstract":"The author describes a joint US/China project intended to develop a microcomputer-based energy management system for rural electric systems. To reduce loss, the key is to control the voltage of the feeder and the reactive power supply to the feeder at the right place and the right time. The sophistication of the system depends on the design of the software and hardware. The intention is to apply the most sophisticated modeling techniques currently available in the area of power system distribution. The following areas are addressed: (1) modeling of rural electric distribution system including cogeneration; (2) research on energy-efficient technologies; (3) load management; (4) computer-aided-engineering techniques for system planning and operation; (5) data communication systems; and (6) software and hardware definitions and requirements.<<ETX>>","PeriodicalId":120857,"journal":{"name":"Papers Presented at the 33rd Annual Conference Rural Electric Power Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132671832","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
Utility benefits of electronic demand recorder application, translation software, and communication 电子需求记录应用程序、翻译软件和通信的效用效益
Papers Presented at the 33rd Annual Conference Rural Electric Power Conference Pub Date : 1989-04-30 DOI: 10.1109/REPCON.1989.95528
R. Hartford
{"title":"Utility benefits of electronic demand recorder application, translation software, and communication","authors":"R. Hartford","doi":"10.1109/REPCON.1989.95528","DOIUrl":"https://doi.org/10.1109/REPCON.1989.95528","url":null,"abstract":"Rural electric cooperatives face problems related to rates, cost pressures, threats of merger or acquisitions, low load factors, territorial conflicts, and deregulation. It is shown how the application of the electronic recording system can help deal with these problems. An integrated approach involving three major components, electronic recorders, communication, and data translation, is proposed. The system can be used for applications such as distribution studies, real-time pricing, interruptible rates, utility and customer load profile data analysis, rate design, and load management.<<ETX>>","PeriodicalId":120857,"journal":{"name":"Papers Presented at the 33rd Annual Conference Rural Electric Power Conference","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123697048","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
Testing the performance of three-phase induction watthour meters in the presence of harmonic distortion 测试三相感应电能表在谐波失真情况下的性能
Papers Presented at the 33rd Annual Conference Rural Electric Power Conference Pub Date : 1989-04-30 DOI: 10.1109/REPCON.1989.95525
A. Girgis, T. Baldwin, E. Makram, H. Fortson
{"title":"Testing the performance of three-phase induction watthour meters in the presence of harmonic distortion","authors":"A. Girgis, T. Baldwin, E. Makram, H. Fortson","doi":"10.1109/REPCON.1989.95525","DOIUrl":"https://doi.org/10.1109/REPCON.1989.95525","url":null,"abstract":"The authors deal with computer-based testing of a three-phase induction watthour meter in the presence of harmonic distortion. Two three-phase harmonic generators produce the distorted current and voltage waveforms. Each waveform has a prespecified harmonic magnitude and phase. Therefore, balanced or unbalanced conditions can be simulated in the testing. A fiber-optic sensor is designed to convert the rotation of the disk of the meter into digital signals to be stored in an IBM PC/AT. A data acquisition system transfers the samples of current and voltage waveforms so that the power and energy can be computed for comparison. Induction watthour meters are shown to be affected by harmonic distortion. The error increases at light loading conditions. For a three-element watthour meter, the maximum negative error was observed when the harmonic current was in phase with the harmonic voltage. This applies to all harmonic orders. The maximum positive error was observed when the harmonic current was shifted by 180 degrees .<<ETX>>","PeriodicalId":120857,"journal":{"name":"Papers Presented at the 33rd Annual Conference Rural Electric Power Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132946893","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: 19
Commercial energy audits-an electric heating marketing strategy for electric utilities 商业能源审计——电力公司的电热营销策略
Papers Presented at the 33rd Annual Conference Rural Electric Power Conference Pub Date : 1989-04-30 DOI: 10.1109/REPCON.1989.95531
A. Bierbaum
{"title":"Commercial energy audits-an electric heating marketing strategy for electric utilities","authors":"A. Bierbaum","doi":"10.1109/REPCON.1989.95531","DOIUrl":"https://doi.org/10.1109/REPCON.1989.95531","url":null,"abstract":"The author attempts to show how commercial energy audits can provide numerous public relation benefits and can be used to sell electric space heating systems. He notes that there are a significant number of commercial members in the community with fossil-fueled equipment that could be converted to all-electric if the advantages of electric equipment could be shown along with economical operating costs achieved using innovative rate designs. A commercial energy audit example is presented.<<ETX>>","PeriodicalId":120857,"journal":{"name":"Papers Presented at the 33rd Annual Conference Rural Electric Power Conference","volume":"18 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125907933","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
Edison's NetComm Project 爱迪生的NetComm项目
Papers Presented at the 33rd Annual Conference Rural Electric Power Conference Pub Date : 1989-04-30 DOI: 10.1109/REPCON.1989.95533
S. Carlisle
{"title":"Edison's NetComm Project","authors":"S. Carlisle","doi":"10.1109/REPCON.1989.95533","DOIUrl":"https://doi.org/10.1109/REPCON.1989.95533","url":null,"abstract":"The NetComm objective is to develop an electric utility owned and operated communication network using specially designed UHF packet radios capable of two-way communication with a large number of destinations while satisfying the utility's concerns regarding system reliability, data integrity and security. A solid-state meter that can be accessed over the communication network has also been developed and is the first device of its type. Prototype equipment is presently undergoing a Beta test at a site approximately fifty miles north of Los Angeles, California. Ultimately, 2500 meters and 350 radios will be installed at this site. The author describes the packet communication system concept, the solid-state meter, and the status of the field test and demonstration program.<<ETX>>","PeriodicalId":120857,"journal":{"name":"Papers Presented at the 33rd Annual Conference Rural Electric Power Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129352532","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
Power system disturbance patterns 电力系统扰动模式
Papers Presented at the 33rd Annual Conference Rural Electric Power Conference Pub Date : 1989-04-30 DOI: 10.1109/REPCON.1989.95526
D. Koval
{"title":"Power system disturbance patterns","authors":"D. Koval","doi":"10.1109/REPCON.1989.95526","DOIUrl":"https://doi.org/10.1109/REPCON.1989.95526","url":null,"abstract":"The author presents some power system disturbance patterns that were obtained by continuously monitoring the power supply of a computer system over a period of two years. An examination of the undervoltage disturbance patterns over this two-year period revealed that the majority of disturbances occurred during normal working hours (8 am-5 pm). The characteristic patterns were different from year to year (i.e., similar shape but significantly different frequencies of occurrence). The number of samples in which no disturbances were recorded decreased as the duration of site monitoring increased. The frequency of undervoltage power supply disturbances was strongly correlated with the seasons, and the mean time between undervoltage power supply disturbances was 39.54 h. Each type of power supply disturbance exhibited unique patterns of occurrence with significantly different mean times between disturbances.<<ETX>>","PeriodicalId":120857,"journal":{"name":"Papers Presented at the 33rd Annual Conference Rural Electric Power Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114772243","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: 38
Wyes and wye nots of three-phase distribution transformer connections 三相配电变压器接线的绕线和绕线
Papers Presented at the 33rd Annual Conference Rural Electric Power Conference Pub Date : 1989-04-30 DOI: 10.1109/REPCON.1989.95535
R.J. Rusch, M. Good
{"title":"Wyes and wye nots of three-phase distribution transformer connections","authors":"R.J. Rusch, M. Good","doi":"10.1109/REPCON.1989.95535","DOIUrl":"https://doi.org/10.1109/REPCON.1989.95535","url":null,"abstract":"The authors summarize the pros and cons of various three-phase transformer connections. Recommendations are provided regarding the standard types of connections a utility should offer for various service requirements. Consideration is given to warehousing costs, ferroresonance, neutral grounding, core construction, overvoltages, unbalanced loading, zero sequence sources, and through faults. Emphasis is placed on the exchange of information between customer and utility. An application for three-phase service form that can be used to determine service requirements, including voltage, grounded, ungrounded, three-phase load, single-phase load, motor characteristics, and fault current interrupting rating of secondary breakers and switchgear, is provided. It is recommended that a rural electric utility standardize on a limited number of transformer connections to serve three-phase loads. Recommended standard connections include: (1) four-wire service, grounded-wye-grounded-wye; and (2) three-wire service, wye-delta. Suggestions on utility-supplied information such as maximum available three-phase and line-to-ground fault currents are provided, and the operation of ungrounded systems is discussed.<<ETX>>","PeriodicalId":120857,"journal":{"name":"Papers Presented at the 33rd Annual Conference Rural Electric Power Conference","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121641945","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: 13
Report on automated capacitor switching (for power factor correction) 电容器自动开关报告(用于功率因数校正)
Papers Presented at the 33rd Annual Conference Rural Electric Power Conference Pub Date : 1989-04-30 DOI: 10.1109/REPCON.1989.95529
W. D. Carson
{"title":"Report on automated capacitor switching (for power factor correction)","authors":"W. D. Carson","doi":"10.1109/REPCON.1989.95529","DOIUrl":"https://doi.org/10.1109/REPCON.1989.95529","url":null,"abstract":"The application of capacitors to distribution lines in order to correct power factor at peak loading conditions often result in leading power factors under light load conditions. The leading VArs, under light load conditions, result in added amperage in distribution lines. The author investigates the magnitude of the resistance losses, their cost, and a way of automatically controlling these losses. A method is proposed for determining the savings that could be obtained by automatically switching capacitors to minimize reactive volt amps that flow in distribution lines. It does not appear that small rural substations are good candidates for automatic capacitor switching. Larger substations (over 4000 kW average) that have significant reactive load do appear to be good candidates.<<ETX>>","PeriodicalId":120857,"journal":{"name":"Papers Presented at the 33rd Annual Conference Rural Electric Power Conference","volume":"166 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115170134","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 transformer loss evaluation: building on REA Bulletin 61-16 配电变压器损耗评估:基于REA通报61-16
Papers Presented at the 33rd Annual Conference Rural Electric Power Conference Pub Date : 1989-04-30 DOI: 10.1109/REPCON.1989.95534
M. R. Fussell
{"title":"Distribution transformer loss evaluation: building on REA Bulletin 61-16","authors":"M. R. Fussell","doi":"10.1109/REPCON.1989.95534","DOIUrl":"https://doi.org/10.1109/REPCON.1989.95534","url":null,"abstract":"The equivalent first cost method (described in the REA (Rural Electric Administration) Bulletin 61-16) for calculating loss evaluation values is examined. Procedures for calculating the fixed charge rate and the distribution cooperative's system capacity charge using REA Form 7 are presented. A sample problem is included and is used to show that it is possible to calculate the loss evaluation values so that distribution transformers can be purchased taking the cost of their losses into consideration. It is concluded that using the loss evaluation values for distribution transformer purchases will significantly reduce that portion of the cooperative's system losses due to distribution transformers.<<ETX>>","PeriodicalId":120857,"journal":{"name":"Papers Presented at the 33rd Annual Conference Rural Electric Power Conference","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116049134","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
Case study of radial overhead feeder performance at 12.5 kV and 34.5 kV 12.5 kV和34.5 kV径向架空馈线性能实例研究
Papers Presented at the 33rd Annual Conference Rural Electric Power Conference Pub Date : 1989-04-01 DOI: 10.1109/REPCON.1989.95536
R. Clayton, J. Undrill, E. Shlatz
{"title":"Case study of radial overhead feeder performance at 12.5 kV and 34.5 kV","authors":"R. Clayton, J. Undrill, E. Shlatz","doi":"10.1109/REPCON.1989.95536","DOIUrl":"https://doi.org/10.1109/REPCON.1989.95536","url":null,"abstract":"The authors compared the economic and electrical performance factors on one specific overhead radial distribution feeder that is in operation at 12.5 kV, but whose present load and growth require that it be upgraded. They examined the economics and electrical performance of several feeder upgrading options for a particular feeder on the Green Mountain Power system (USA) with respect to: feeder losses; feeder voltage regulation; capital costs and cost of losses: and voltage dips on the local 115 kV transmission system caused by feeder faults. The performance of four feeder configuration options is assessed. It is shown that there is no clear economic advantage to 34.5 kV and that there may be a disadvantage with respect to voltage dip performance.<<ETX>>","PeriodicalId":120857,"journal":{"name":"Papers Presented at the 33rd Annual Conference Rural Electric Power Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117005213","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
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