TELESCON '94 - The First International Telecommunications Energy Special Conference最新文献_第2页

Battery Evaluation and Certification Testing - Case Studies 电池评估和认证测试-案例研究

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794320

J. Horzepa, Dan McMenemin, W. Cantor, T. Cantor

引用次数: 1

Latest Three-Phase CVCF Sinwave Power Conditioner with New Quasi-Resonant ZVS DC and High-Frequency AC Link for Telephone Power Supply Systems 用于电话供电系统的新型准谐振ZVS直流和高频交流链路的最新三相CVCF Sinwave功率调节器

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794361

H. Yonemori, H. Nagura, M. Nakaoka

引用次数: 0

Development of the power supplies at the Hungarian Telecom 匈牙利电信电力供应系统的开发

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794312

G. Gerdai

引用次数: 1

A HF-Linked Power Interface using a Biased Saturable Transformer 使用偏置饱和变压器的高频连接电源接口

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794366

I. Miyazaki, K. Harada, M. Jinno

引用次数: 0

Application of WC Electrodes in Stationary Batteries WC电极在固定电池中的应用

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794377

G. Papazov, I. Nikolov, D. Pavlov, T. Vitanov

{"title":"Application of WC Electrodes in Stationary Batteries","authors":"G. Papazov, I. Nikolov, D. Pavlov, T. Vitanov","doi":"10.1109/TELESC.1994.4794377","DOIUrl":"https://doi.org/10.1109/TELESC.1994.4794377","url":null,"abstract":"The main reactions involved in thie clharge process of positive and negative lead-acid battery plates are associated with electrochemical decomposition of water. TIo avoid fallinig downI of the electrolyte level, the battery must be regularly topped up withi water, i.e. it requir-es miaintenance In priniciple, two methlods hiave beeni developed to reduce water loss durinig battery operation. Thle first inivolves inicreasing the overvoltage of hiydrogein and oxygen evolution by the use of special alloys, and limiliting the clharge voltage to below the voltage of water decompositioni. The second approach to imasiilnteniance-lfr-ee operation is to enicoLur-age tle recombiniationi of the hydrogen anti oxygeni released in the ceML. This can be achieved tlhrough: (a) an oxygen cycle, whereby the oxygeni released on the positive plate is reduced on the negative one; (b) recombinatiotn of the released gases to water on the catalytic plug; (c) oxygen reduction and hydrogen oxidation on the partially-inimiersed catalytic electrodes. It was established in the 1970's [1,21 that tunigsten carbide (WC) hiad good catalytic activity towards the 1-12 reaction in1H2SO4 electrolyte. Trhe aims of the present study are to inivestigate the catalytic activity of WC towai-ds hydrogen and oxygen released during lead-acid lbaittery operation, and to develop a lead-acid battery with partially immnersed WC clectrodes.","PeriodicalId":178715,"journal":{"name":"TELESCON '94 - The First International Telecommunications Energy Special Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114371772","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 Mathematical Model for Float Operation of Valve-Regulated Lead-Acid Batteries 阀控铅酸蓄电池浮载运行的数学模型

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794319

U. Teutsch

引用次数: 8

Three Phase Resonant DC Link PDM Active Converter with Unity Power Factor and Sinewave Current Shaping Functions 具有统一功率因数和正弦波电流整形功能的三相谐振直流链路PDM有源变换器

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794367

K. Yurugi, H. Yonemori, M. Nakaoka

引用次数: 0

Recent Improvements and Future Developments in Portable Batteries and their Associated Electronics 便携式电池及其相关电子产品的最新改进和未来发展

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794336

J. Schultze, J. Bodet, R. Bonnaterre

引用次数: 0

Future Possibilities to Save Energy by Cooling Equipment in Switching Rooms of Central Offices 在中心局配电室安装冷却设备以节省能源的未来可能性

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794356

P. Schmidt

{"title":"Future Possibilities to Save Energy by Cooling Equipment in Switching Rooms of Central Offices","authors":"P. Schmidt","doi":"10.1109/TELESC.1994.4794356","DOIUrl":"https://doi.org/10.1109/TELESC.1994.4794356","url":null,"abstract":"Today there are three main possibilities for further energy savings in the cooling of digital switching rooms of the Telekom, using the existing unit technology: - Change to constant temperature difference control The savings potential of this measure mainly depends on the existing partial load condition of the individual installation. The magnitude cannot be indicated in general, but as an average it should be at least 30 to 35%. - Accurate consideration of external pressure losses The average values of all analyzed units in figure 3 shows an additional energy consumption of 8%, compared to the specification. Careful project engineering, especially for new buildings, should permit even lower external pressure losses than specified by the Muster-Leistungsverzeichnis der Deutschen Bundespost [1]. - Return temperature of 36°C throughout the year, eventually 40°C This operating mode can be implemented by simple modification of the DDC programs. It lowers the annual energy consumption by 20%, eventually even 45%. Summing up these possibilities, an overall reduction of the energy consumption of at least 50 to 60% should be possible, whereby measures 1 and 3 can be implemented on existing systems without excessive expense.","PeriodicalId":178715,"journal":{"name":"TELESCON '94 - The First International Telecommunications Energy Special Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128870765","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

Solar and Wind Power for Comunications Systems 用于通信系统的太阳能和风能

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794368

Ulrich Vollert

引用次数: 0