Pub Date : 2008-05-07DOI: 10.1109/AIEEPAS.1953.4498744
T. Ingledow, J. H. Steede
{"title":"The Wahleach Hydroelectric Development [includes discussion]","authors":"T. Ingledow, J. H. Steede","doi":"10.1109/AIEEPAS.1953.4498744","DOIUrl":"https://doi.org/10.1109/AIEEPAS.1953.4498744","url":null,"abstract":"","PeriodicalId":118797,"journal":{"name":"Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122698293","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}
Pub Date : 2008-05-07DOI: 10.1109/AIEEPAS.1954.4498803
C. Concordia, L. K. Kirchmayer
In a previous paper [ibid., vol. 72, pt. III, June 1953, pp. 562-71], the authors presented the results of a study of the performance of two interconnected steam-electric power-generating areas as affected by frequency and tie-line power controllers. The present paper extends this study to include hydroelectric power generating areas as well. As before, the object is to determine theoretically the best values of controller gains, that is, to find those controller settings that will result in best over-all system performance. The principal criterion of good performance is, also as before, the minimizing of any oscillations in tie-line power or system frequency resulting from load disturbances to either area. Thus, stability, rather than rapidity of response, is preferred, since the system actually is continually being disturbed by small and more or less random changes of load, rather than by the step load change used as a test disturbance in the study.
{"title":"Tie-Line Power and Frequency Control of Electric Power Systems - Part II [includes discussion]","authors":"C. Concordia, L. K. Kirchmayer","doi":"10.1109/AIEEPAS.1954.4498803","DOIUrl":"https://doi.org/10.1109/AIEEPAS.1954.4498803","url":null,"abstract":"In a previous paper [ibid., vol. 72, pt. III, June 1953, pp. 562-71], the authors presented the results of a study of the performance of two interconnected steam-electric power-generating areas as affected by frequency and tie-line power controllers. The present paper extends this study to include hydroelectric power generating areas as well. As before, the object is to determine theoretically the best values of controller gains, that is, to find those controller settings that will result in best over-all system performance. The principal criterion of good performance is, also as before, the minimizing of any oscillations in tie-line power or system frequency resulting from load disturbances to either area. Thus, stability, rather than rapidity of response, is preferred, since the system actually is continually being disturbed by small and more or less random changes of load, rather than by the step load change used as a test disturbance in the study.","PeriodicalId":118797,"journal":{"name":"Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130588964","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}
Pub Date : 2008-05-07DOI: 10.1109/AIEEPAS.1952.4498582
R. E. Riebs
With the introduction of the automatic circuit recloser, it became necessary to consider the effects of a fault current repeated several times at short intervals upon the time current characteristics of a fuse link. The link goes through several sequences of heating and cooling, each application of the fault bringing a higher end temperature. This paper describes a study of the exact manner in which a fuse link behaves when such a series of repeated faults is impressed upon it. The temperature of the fuse link is traced as the fuse heats with the application of a fault, cools after the first interruption, and is brought to still higher temperatures by succeeding applications of the fault. In this manner it is possible to determine whether a fuse will blow or be damaged by a given sequence of repeated faults, or remain undamaged. Information also is presented for determining how co-ordination is affected by preloading and ambient temperature variations. A feature of this study is that damage to the link can be predicted for faults of insufficient duration to cause blowing. Equipment used for the tests is described.
{"title":"The Effect of Repeated Faults on Fuse Characteristics [includes discussion]","authors":"R. E. Riebs","doi":"10.1109/AIEEPAS.1952.4498582","DOIUrl":"https://doi.org/10.1109/AIEEPAS.1952.4498582","url":null,"abstract":"With the introduction of the automatic circuit recloser, it became necessary to consider the effects of a fault current repeated several times at short intervals upon the time current characteristics of a fuse link. The link goes through several sequences of heating and cooling, each application of the fault bringing a higher end temperature. This paper describes a study of the exact manner in which a fuse link behaves when such a series of repeated faults is impressed upon it. The temperature of the fuse link is traced as the fuse heats with the application of a fault, cools after the first interruption, and is brought to still higher temperatures by succeeding applications of the fault. In this manner it is possible to determine whether a fuse will blow or be damaged by a given sequence of repeated faults, or remain undamaged. Information also is presented for determining how co-ordination is affected by preloading and ambient temperature variations. A feature of this study is that damage to the link can be predicted for faults of insufficient duration to cause blowing. Equipment used for the tests is described.","PeriodicalId":118797,"journal":{"name":"Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114020444","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}
Pub Date : 2008-05-07DOI: 10.1109/AIEEPAS.1956.4499308
M. Talaat
{"title":"A New Approach to the Calculation of Synchronous Machine Reactances - Part II [includes discussion]","authors":"M. Talaat","doi":"10.1109/AIEEPAS.1956.4499308","DOIUrl":"https://doi.org/10.1109/AIEEPAS.1956.4499308","url":null,"abstract":"","PeriodicalId":118797,"journal":{"name":"Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems","volume":"300 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134339433","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}
Pub Date : 2008-05-07DOI: 10.1109/AIEEPAS.1953.4498647
C. Foust, B. Maine, C. Lee
{"title":"Lightning Stroke Protection at High Altitude in Peru [includes discussion]","authors":"C. Foust, B. Maine, C. Lee","doi":"10.1109/AIEEPAS.1953.4498647","DOIUrl":"https://doi.org/10.1109/AIEEPAS.1953.4498647","url":null,"abstract":"","PeriodicalId":118797,"journal":{"name":"Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems","volume":"24 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132794228","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}
Pub Date : 2008-05-07DOI: 10.1109/AIEEPAS.1953.4498670
E. Gross, L. B. Levesconte
{"title":"Backup Protection for Generators [includes discussion]","authors":"E. Gross, L. B. Levesconte","doi":"10.1109/AIEEPAS.1953.4498670","DOIUrl":"https://doi.org/10.1109/AIEEPAS.1953.4498670","url":null,"abstract":"","PeriodicalId":118797,"journal":{"name":"Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems","volume":"333 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116370263","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}
Pub Date : 2008-05-07DOI: 10.1109/AIEEPAS.1952.4498549
G. Kron
New types of transient equations and equivalent circuits are established for the small oscillation study of synchronous, induction and other rotating machines. In the new form it is possible to interconnect the transient hunting equivalent circuits of any number and types of rotating machines, transmission lines and stationary networks in any desired combination by mere inspection of the actual system, without any previous physical or analytical study. Furthermore, from the resultant equivalent circuit it is possible to write down by mere inspection again the transient hunting equations and transfer functions of the entire complex system, to be set up and solved on a digital or analogue computer, in conjunction with connected regulators and servomechanisms.
{"title":"A New Theory of Hunting [includes discussion]","authors":"G. Kron","doi":"10.1109/AIEEPAS.1952.4498549","DOIUrl":"https://doi.org/10.1109/AIEEPAS.1952.4498549","url":null,"abstract":"New types of transient equations and equivalent circuits are established for the small oscillation study of synchronous, induction and other rotating machines. In the new form it is possible to interconnect the transient hunting equivalent circuits of any number and types of rotating machines, transmission lines and stationary networks in any desired combination by mere inspection of the actual system, without any previous physical or analytical study. Furthermore, from the resultant equivalent circuit it is possible to write down by mere inspection again the transient hunting equations and transfer functions of the entire complex system, to be set up and solved on a digital or analogue computer, in conjunction with connected regulators and servomechanisms.","PeriodicalId":118797,"journal":{"name":"Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129103372","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}
Pub Date : 2008-05-07DOI: 10.1109/AIEEPAS.1953.4498721
W. A. Sumner, G. M. Stein, A. Lockie
{"title":"Life Expectancy of Oil-Immersed Insulation Structures [includes discussion]","authors":"W. A. Sumner, G. M. Stein, A. Lockie","doi":"10.1109/AIEEPAS.1953.4498721","DOIUrl":"https://doi.org/10.1109/AIEEPAS.1953.4498721","url":null,"abstract":"","PeriodicalId":118797,"journal":{"name":"Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122109696","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}
Pub Date : 1962-10-01DOI: 10.1109/AIEEPAS.1962.4501341
R. Oldenburger, J. Donelson
Frequency-response tests have been made on the turbines at the Apalachia Hydroelectric Plant, of the Tennessee Valley Authority, to check the validity of previously derived mathematical expressions. These tests confirmed in general that the mathematical expressions could be used to describe the performance under all major operating conditions and for the direct design of nonlinear power system controls. Hydraulically, this is the most complicated installation east of the Rockies.
{"title":"Dynamic Response of a Hydroelectric Plant","authors":"R. Oldenburger, J. Donelson","doi":"10.1109/AIEEPAS.1962.4501341","DOIUrl":"https://doi.org/10.1109/AIEEPAS.1962.4501341","url":null,"abstract":"Frequency-response tests have been made on the turbines at the Apalachia Hydroelectric Plant, of the Tennessee Valley Authority, to check the validity of previously derived mathematical expressions. These tests confirmed in general that the mathematical expressions could be used to describe the performance under all major operating conditions and for the direct design of nonlinear power system controls. Hydraulically, this is the most complicated installation east of the Rockies.","PeriodicalId":118797,"journal":{"name":"Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130869757","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}
Pub Date : 1962-10-01DOI: 10.1109/AIEEPAS.1962.4501338
F. L. Lawton
This paper is the result of observations made by several Canadian power-utility engineering and managerial personnel during an exchange visit to the USSR in 1961 as guests of the Ministry of Power Station Construction. This visit, plus other sources of information, made possible a review of the organization, growth, and resources of the power industry in Russia, the design and construction of power stations, various transmission systems, and the manufacturing processes of generating equipment.
{"title":"Power Development in the USSR","authors":"F. L. Lawton","doi":"10.1109/AIEEPAS.1962.4501338","DOIUrl":"https://doi.org/10.1109/AIEEPAS.1962.4501338","url":null,"abstract":"This paper is the result of observations made by several Canadian power-utility engineering and managerial personnel during an exchange visit to the USSR in 1961 as guests of the Ministry of Power Station Construction. This visit, plus other sources of information, made possible a review of the organization, growth, and resources of the power industry in Russia, the design and construction of power stations, various transmission systems, and the manufacturing processes of generating equipment.","PeriodicalId":118797,"journal":{"name":"Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125743718","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}
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