现代化城市电网结构日渐复杂，电网容量不断扩大，在其实时信息传输量不断增多的同时，也给电网供电可靠性和电能质量提出了更高的要求。近年来，我国计算机技术和通信技术的进步，使得电网信息采集、处理及传输均可通过计算机完成，变电站自动化系统基于信息技术，实现了电网的现代化管理。但是诸多客观因素的影响，使得我国变电站发生了运行事故，带来了严重的损失。基于此，本文就35kv 变电站电气一次部分设计技术进行了研究与分析，从而提升变电站供电的可靠性，确保35kv变电站安全运行。%the modern city power grid structure is becoming more complex, the power capacity continues to expand, in the information transmission is increasing at the same time, also gives the power supply reliability and power quality put forward higher requirements. In recent years, computer technology and communication technology progress in China, making network information collection, processing and transmission can be finished by computer, based on information technology of substation automation system, realized the modernization management of the power grid. But many objective factors, making China's substation operation accidents, serious losses. Based on this, this paper studied and analyzed the design technology, once part of the electrical 35kV substation, so as to enhance the reliability of substation power supply, ensure that the 35kV transformer substation safe operation.
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