浅析黄陵矿区变电站直流系统技术改造

Analysis on the technological transformation of substation DC system in Huangling Coal Mine

变电站直流系统运行正常与否,常常涉及到继电保护及开关能否正确及时切除故障,保护电力一次设备,避免重大电网事故。同时,它又是变电站一个公用系统,出了问题就会影响全站甚至全网的正常运行。本文针对黄陵矿区变电站的现状,提出采用两套直流系统互为备用的运行方式,从而提高变电所直流系统的可靠性。

The substation DC system working normally or not is often related to the relay protection,the failure removal by the switch,the protection of primary equipment and the prevention of major power network accident. Meanwhile,it is a utility system of the substation. If something goes wrong,it will affect the normal operation of the whole substation and even the whole network. According to the status of the substation in Huangling Coal Mine,this paper put forward the operation mode of two sets DC systems for mutual standby,so as to improve the reliability of the substation DC system.