变电站-48V电力通信直流电源系统扩容安全性分析

Safety analysis of substation-48V power communication DC power system expan-sion

通信电源是通信网络设备可靠运行的保障,作为变电站电力通信网络的基础设施,变电站-48V通信直流电源系统容量一般考虑投产后3-5年的负荷增长,当用电负荷超过已有电源系统容量的时候,可以更换整套电源提供更大容量,也可以采用已有系统扩容的方案。在扩容方案中,通信电源厂家参照前期产品的尺寸规格,生产出容量更大的模块用于更换小模块,从而实现整流器的扩容。文章结合工程案例,对变电站通信电源扩容的安全性进行分析,为电力通信安全运行提供一定参考。

Communication power is the guarantee of reliable operation of communication network equipment, as the infrastructure of substation power communication network, the capacity of the substation-48 V communication DC power system is generally considered to increase the load after 3-5 years after the production. When the power load exceeds the capacity of the existing power system, the existing system expansion scheme can be adopted. The com-munication power supply manufacturer refers to the size specifications of the previous products, and produces a module with a larger capacity for replacing the small module, thereby realizing the expansion of the rectifier. This paper combines engineering cases to analyze the safety of substation communication power supply expansion, and provides a reference for the safe operation of power communication.