摘要
目前传输设备普遍用-48 V直流供电系统供电,电源系统存在供电电压低、线路传输损耗大,电源系统集成度不高,功率密度小,线路投资高等缺点,特别是投产时间较久的老通信机楼,由于通信设备集成度的提高,用电需求增加迅猛,存在电力机房面积及电缆敷设通道不满足设备用电需求的情况。用240 V高压直流系统替代-48 V直流供电系统,对简化通信机楼电源结构,优化老通信机楼资源配置,提升老通信机楼供电能力有重大意义。分析了用240 V系统替代-48 V系统供电的技术可行性,并从建设成本、机房资源占用、运行成本等几方面对两种直流系统的经济性进行评估。
At present,transmission equipment is generally powered by-48 V DC power supply system.The power supply system has the disadvantages of low power supply voltage,large line transmission loss,low integration of power supply system,low power density and high line investment.Especially for the old communication machine building that has been put into operation for a long time,due to the improvement of the integration of communication equipment,the power demand increases rapidly,and the area of power room and cable laying channel do not meet the power demand of equipment.Replacing-48 V DC power supply system with 240 V high-voltage DC system is of great significance to simplify the power structure of the communication building,optimize the resource allocation of the old communication building,and improve the power supply capacity of the old communication building.This paper discusses the technical feasibility analysis of using 240 V system to replace-48 V system power supply,and evaluates the economy of the two DC systems from the aspects of construction cost,computer room resource occupation,operation cost and so on.
作者
秦珲
QIN Hun(China General Service Consulting,Design and Research Institute Co.,Ltd.,Nanjing 350011,China)
出处
《通信电源技术》
2022年第10期78-79,91,共3页
Telecom Power Technology
关键词
直流供电系统
开关电源
传输设备
高压直流电源
平均维修时间(MTTR)
direct current power supply
switching power supply
transmission equipment
high-voltage direct current power supply
Mean Time To Repair(MTTR)
