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INTELEC - 1979 International Telecommunications Energy Conference最新文献

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The Power Processor - A Unique Approach to Uninterruptible Switch Center Power 电源处理器——实现不间断开关中心电源的独特方法
INTELEC - 1979 International Telecommunications Energy Conference Pub Date : 1979-11-01 DOI: 10.1109/INTLEC.1979.4793618
D. Hornbeck
{"title":"The Power Processor - A Unique Approach to Uninterruptible Switch Center Power","authors":"D. Hornbeck","doi":"10.1109/INTLEC.1979.4793618","DOIUrl":"https://doi.org/10.1109/INTLEC.1979.4793618","url":null,"abstract":"A problem associated with electronic transmission equipment today is that of reliable secondary DC voltage development. Many switch centers must provide unattended service imposed with uninterruptible power demands. Typically, uninterruptible power is developed through the application of inverters operated from rectified utility power utilizing a back-up battery float. Should the utility power degrade below a predetermined level uninterrupted energy is supplied from the batteries.","PeriodicalId":177302,"journal":{"name":"INTELEC - 1979 International Telecommunications Energy Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116764022","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
Underwriters Laboratories Approach to Safety Evaluation of Telephone Power Supplies 保险商实验室电话电源安全评估方法
INTELEC - 1979 International Telecommunications Energy Conference Pub Date : 1979-11-01 DOI: 10.1109/INTLEC.1979.4793600
Joseph P. Murnane, R. Schlegel
{"title":"Underwriters Laboratories Approach to Safety Evaluation of Telephone Power Supplies","authors":"Joseph P. Murnane, R. Schlegel","doi":"10.1109/INTLEC.1979.4793600","DOIUrl":"https://doi.org/10.1109/INTLEC.1979.4793600","url":null,"abstract":"","PeriodicalId":177302,"journal":{"name":"INTELEC - 1979 International Telecommunications Energy Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116935966","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
A Standardized Power Approach for the Univac Data Processing Product Line - Present and Future Univac数据处理产品线的标准化电源方法-现在和未来
INTELEC - 1979 International Telecommunications Energy Conference Pub Date : 1979-11-01 DOI: 10.1109/INTLEC.1979.4793596
Gary J. Rokas
{"title":"A Standardized Power Approach for the Univac Data Processing Product Line - Present and Future","authors":"Gary J. Rokas","doi":"10.1109/INTLEC.1979.4793596","DOIUrl":"https://doi.org/10.1109/INTLEC.1979.4793596","url":null,"abstract":"This paper will analyse the power requirements of a general computer system as well as a particular Univac product related to distributed communications processing. Some general criteria for power levels and quality will therefore be developed. Utility requirements and governmental codes (UL, CSA, IEC, VDE, etc.) will be discussed. To provide the power level density and quality required by present systems, Univac's power supply facility in Dorval, Canada, has developed a line of standard power supplies. These supplies are of the off-line inverter type and will be presented in some detail. Modularity has been stressed in the design of these units. Present design effort is now being devoted to the next generation of power supplies. Some insight into the course of this development will be given.","PeriodicalId":177302,"journal":{"name":"INTELEC - 1979 International Telecommunications Energy Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129457314","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
Low Energy Cooling for Digital Telecommunications Systems 数字通信系统的低能耗冷却
INTELEC - 1979 International Telecommunications Energy Conference Pub Date : 1979-11-01 DOI: 10.1109/INTLEC.1979.4793651
D. A. Spurgin
{"title":"Low Energy Cooling for Digital Telecommunications Systems","authors":"D. A. Spurgin","doi":"10.1109/INTLEC.1979.4793651","DOIUrl":"https://doi.org/10.1109/INTLEC.1979.4793651","url":null,"abstract":"The development of digital telecommunications switching equipment with its lower power per Erlang of traffic and its more constant power requirement at a time of increasing energy shortage has created the need to re-consider conventional cooling practices and to examine other less conventional methods. This paper describes current telephone exchange cooling practices, the environmental requirements and behaviour of digital switching equipment and the means of reducing cooling energy. Some energy recovery and storage methods are also discussed of which at least one could have beneficial effects for the future.","PeriodicalId":177302,"journal":{"name":"INTELEC - 1979 International Telecommunications Energy Conference","volume":"34 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129738149","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
A General Purpose Sine Wave Inverter 通用正弦波逆变器
INTELEC - 1979 International Telecommunications Energy Conference Pub Date : 1979-11-01 DOI: 10.1109/INTLEC.1979.4793658
Armando E. Gleiser, Servotron Sacifi
{"title":"A General Purpose Sine Wave Inverter","authors":"Armando E. Gleiser, Servotron Sacifi","doi":"10.1109/INTLEC.1979.4793658","DOIUrl":"https://doi.org/10.1109/INTLEC.1979.4793658","url":null,"abstract":"A sine wave, low cost high performance transistorized inverter for the 1 to 6 KVA range was developed and is now being manufactured for comunications and telemetry equipment as well as minicomputers. The design was oriented to the use of easily available components while keeping up reliability and performance. Design criteria for power and control stages are discussed and outcome of enviromental, mechanical and electrical test are listed. Actual experience shows that designing inverter for transistorized output stages turn out performances that compare favourably to higher price larger size SCR inverters.","PeriodicalId":177302,"journal":{"name":"INTELEC - 1979 International Telecommunications Energy Conference","volume":"367 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126702469","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
Equalisation of Lead-Acid Stationary Cells 铅酸固定电池的均衡
INTELEC - 1979 International Telecommunications Energy Conference Pub Date : 1979-11-01 DOI: 10.1109/INTLEC.1979.4793635
F. R. Smith
{"title":"Equalisation of Lead-Acid Stationary Cells","authors":"F. R. Smith","doi":"10.1109/INTLEC.1979.4793635","DOIUrl":"https://doi.org/10.1109/INTLEC.1979.4793635","url":null,"abstract":"Lead-acid stationary cells of three types, all with Pb-Ca alloy grids, have been float charged in strings of four or five cells for nearly two years. Individual cell potential differences have been measured during floating at 2.2 V/ cell, during equalisation at 2.35 to 2.4 V, and during periods on open circuit. The potential difference across a cell has been taken as an indicator of its health, following Milner, a high float voltage being preferred to a low one. Three modes of equalisation have been attempted: (i) raising the P. D. of all cells in a string to ca. 2.35 V/cell, (ii) raising the P. D. of one cell in a string to 2.35 V using a second power supply in parallel with that maintaining the other cells at 2.15 to 2.2 V each, and (iii) raising the P. D. of one cell to 2.35 V using a separate power supply, treating this cell in isolation from other cells in the string. Only the last method appears to be without drawbacks.","PeriodicalId":177302,"journal":{"name":"INTELEC - 1979 International Telecommunications Energy Conference","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124434282","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
Call Progress System for Provision of Calling Tones and Ringing Power 呼叫进度系统提供来电铃声和振铃功率
INTELEC - 1979 International Telecommunications Energy Conference Pub Date : 1979-11-01 DOI: 10.1109/INTLEC.1979.4793677
J. Wuorinen, T. Kinsel
{"title":"Call Progress System for Provision of Calling Tones and Ringing Power","authors":"J. Wuorinen, T. Kinsel","doi":"10.1109/INTLEC.1979.4793677","DOIUrl":"https://doi.org/10.1109/INTLEC.1979.4793677","url":null,"abstract":"A Call Progress System generating telephone calling tones and ringing power with a high degree of flexibility is described. It has a multi-microcomputer architecture and is personalized for a particular application by use of a ROM.","PeriodicalId":177302,"journal":{"name":"INTELEC - 1979 International Telecommunications Energy Conference","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114708040","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
The Identification and Correction of High Energy Telecommunications Buildings 高能通信建筑的识别与校正
INTELEC - 1979 International Telecommunications Energy Conference Pub Date : 1979-11-01 DOI: 10.1109/INTLEC.1979.4793649
D. Richman, D. A. Spurgin
{"title":"The Identification and Correction of High Energy Telecommunications Buildings","authors":"D. Richman, D. A. Spurgin","doi":"10.1109/INTLEC.1979.4793649","DOIUrl":"https://doi.org/10.1109/INTLEC.1979.4793649","url":null,"abstract":"This paper describes the methods adopted to reduce long term energy consumption by the British Post Office Telecommunications and their application to existing and new buildings.","PeriodicalId":177302,"journal":{"name":"INTELEC - 1979 International Telecommunications Energy Conference","volume":"64 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120817388","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
Attenuation of Noise using Booster Converters as Active Filters 利用升压变换器作为有源滤波器的噪声衰减
INTELEC - 1979 International Telecommunications Energy Conference Pub Date : 1979-11-01 DOI: 10.1109/INTLEC.1979.4793670
F. Ekelund
{"title":"Attenuation of Noise using Booster Converters as Active Filters","authors":"F. Ekelund","doi":"10.1109/INTLEC.1979.4793670","DOIUrl":"https://doi.org/10.1109/INTLEC.1979.4793670","url":null,"abstract":"Booster DC to DC converters operating with 20 kHz conversion frequency perform rapid regulation that make them very well suited to use as active filters for attenuation of low frequency noise. Booster converters with such filtering qualities are beeing used in a new series of 48 V DC power plants. The noise on the output is kept well below the limits that are specified in the CCITT-recommendations.","PeriodicalId":177302,"journal":{"name":"INTELEC - 1979 International Telecommunications Energy Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124422344","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
Standby and Uninterruptible Power Systems for Boosting the Reliability and Availability of Telecommunications and Computers 提高电信和计算机可靠性和可用性的备用和不间断电源系统
INTELEC - 1979 International Telecommunications Energy Conference Pub Date : 1979-11-01 DOI: 10.1109/INTLEC.1979.4793617
R. Schwarz
{"title":"Standby and Uninterruptible Power Systems for Boosting the Reliability and Availability of Telecommunications and Computers","authors":"R. Schwarz","doi":"10.1109/INTLEC.1979.4793617","DOIUrl":"https://doi.org/10.1109/INTLEC.1979.4793617","url":null,"abstract":"An ever-growing number of loads are placing more exacting demands on the power supply. The use of standby systems is recommended or even essential for all such exacting demands. Static UPS systems have acquired a leading position compared to other standby systems and will consolidate it still further in future. The most important characteristics of modern static UPS systems are dealt with and A comparison made with the guide values of various kinds of other UPS systems. The knowledge gained from the theory of reliability is assuming ever greater importance both in the development and manufacture as well as in the selection of UPS systems. The measures adopted to improve the reliability and availability of such systems are dealt with. The final part of the paper deals with future prospects in the field of UPS systems.","PeriodicalId":177302,"journal":{"name":"INTELEC - 1979 International Telecommunications Energy Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129905393","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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