TELESCON '94 - The First International Telecommunications Energy Special Conference最新文献_第4页

Batteries and their Application 电池及其应用

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794376

H. Lehmann

引用次数: 0

DC Power Supply for Modernizing the Telecom Networks in Some States of the C.I.S. 独联体一些国家电信网络现代化的直流电源

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794346

W. Brandenstein

{"title":"DC Power Supply for Modernizing the Telecom Networks in Some States of the C.I.S.","authors":"W. Brandenstein","doi":"10.1109/TELESC.1994.4794346","DOIUrl":"https://doi.org/10.1109/TELESC.1994.4794346","url":null,"abstract":"The paper describes the activities of Alcatel SEL and her subsidiary Alcatel SEL RFT in the states Kazakhstan and Russia regarding stationary DC power plants. The Hanover fair \"CeBIT\" of 1992 was the starting point with the signing of some important contracts with the Telecommunication Ministry of Kazakhstan. Everything began with a training exchange of the digital switching system S12 in Alma Ata. The planning of the telecom network was performed in cooperation between our company and an institute which belongs to the Ministry of Telecommunication. Also some private networks were established, f.i. with a copper mine in Balkhash. Until the end of 1993 nearly 100 switching stations were raised in 10 of the 19 \"oblast\" of the country. In Russia it will be around 20 stations. The C.I.S. state's telecommunication system voltage is -60V, like in Austria, Germany and some countries which were influenced by the former Soviet Union. Besides the stations for switching and transmission equipment a mobile radio network (GSM) and network of radio link connections with the system RURTEL was established and this had its own specialities. Of course, DC power plants were the main part of our activities, but also batteries and UPS, the latter for control centers and local service facilities. For the RURTEL repeaters and subscriber stations in nearly all cases solar supply was used. GSM, some ISDN-networks and RURTEL operate with -48V on the DC-site.","PeriodicalId":178715,"journal":{"name":"TELESCON '94 - The First International Telecommunications Energy Special Conference","volume":"133 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":"122333033","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

Cooling systems for switching rooms with high thermal loads 高热负荷交换室的冷却系统

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794354

K. Fitzner

引用次数: 0

The Operation System for Japan's Telecommunications Power Systems 日本电信电力系统的运行系统

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794323

H. Yamashita, T. Takeda

引用次数: 3

Generalization in France Telecom Network of Decentralized Power Supplies for Telecom Systems 分散供电在法国电信网络中的推广

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794310

J. Leblanc, M. Aubree, A. Griers, D. Jugan, D. Marquet

引用次数: 1

Compact Power Formats Meet Changing Conditions 紧凑的电源格式满足不断变化的条件

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794311

A. Ericsson, J. Åkerlund

{"title":"Compact Power Formats Meet Changing Conditions","authors":"A. Ericsson, J. Åkerlund","doi":"10.1109/TELESC.1994.4794311","DOIUrl":"https://doi.org/10.1109/TELESC.1994.4794311","url":null,"abstract":"Growing competition in the telecom market is exercising a downward pressure on prices for all types of network services. A high degree of cost consciousness in all network operation sectors is therefore essential. Our basic concern in the field of telecom energy (power supply, heating, ventilation and cooling) is the creation of a complete energy system designed to serve the telecom process. Rapidly changing market conditions call for energy systems capable of greater functionality and availability, faster delivery and commissioning, and better manageability, quality and service. The Telecom Energy Division of Telia AB (f. Swedish Telecom) recently completed a project entitled Compact Power Formats Meet Changing Conditions. The project task - to find answers to the issues outlined above - entailed the evaluation of a number of different power system concepts based on recent technological developments in power conversion and telecommunications. The concept which in our view best met the requirements of adaptability to rapidly changing conditions has now been described in detail, complete with purchasing specifications. The project has defined the compact power format as the concept most appropriate to our needs. Its key property is flexibility, a crucial factor in the face of changing market conditions. An exhaustive exploration of a number of critical aspects revealed major advantages for the compact power format. This paper presents an account of some of the more significant results arrived at by the project.","PeriodicalId":178715,"journal":{"name":"TELESCON '94 - The First International Telecommunications Energy Special Conference","volume":"148 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":"125188674","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

Supply of Power to Mixed Equipment Generations from a Common Power Plant 从同一发电厂向混合设备代供电

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794347

K. Dunze

引用次数: 0

Technical requirements for the connection of telecommunication equipment to the public mains - avoiding mains perturbations 电信设备与公用干线连接的技术要求。避免干线扰动

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794315

J. Pestka

引用次数: 0

The Line-Interactive Concept, an Optimal Approach to UPS 线路交互概念，UPS的最佳方案

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794359

K. Bouwknegt

引用次数: 1

Advanced Digital Control and Monitoring for UPS Applications 先进的数字控制和监测的UPS应用

TELESCON '94 - The First International Telecommunications Energy Special Conference Pub Date : 1994-04-11 DOI: 10.1109/TELESC.1994.4794326

K. Sachs

引用次数: 0