变电所直接合环的研究和探讨

Study and Probe On Substation Closed cycle Current

通过对某大型乙烯工程变电所“分变合环”可行性的分析和研究， 结合电气运行工作实践， 提出了一个新的“双电源并列方法”， 将四级合环操作简化为一级操作。该方法可供全国类似工业企业电气运行参考。其重要意义在于大大降低操作人员的劳动强度， 减少误操作的机率和系统设备不必要的损耗，

Combining with the practice of electric operation,this article discusses and proves that 4 grade closed cycle current operation can be simplified to 1 grade one,and then it puts forward a new method,“double power supply juxtaposition” Through the analysis and study of feasibility of substation closed cycle current for the electric substation of Tianjin Ethylene Plant,it is presented to the similar industrial enterprises for their inspiration and reference Its important meaning is that it can greatly reduce intensity of labour for operators as well as probability of its operation and unnecessary loss of the equipments of the power system,so that the source of energy is efficiently saved