变电站运行中的35kV老旧母线分段改造

Partial Reinstallation of Old 35 kV Buses During Running at Substations

简要介绍了阎家屯220 kV变电站35 kV母线更换改造工程的概况。重点阐述了改造过程中,如何巧妙地在35 kV母线不全部停电的情况下,成功地实施母线分段及更换母线、瓷瓶及相关附件,并将主变跨越母线的过引线进行了加高,使35 kV母线更换改造工程在尽可能高的运行可靠性及最小的电量损失下继续顺利进行,并保证了设备改造期间该站和电网的安全稳定运行。

This article briefly introduced the general situation of the reinstallation of 35 kV bus at Yanjiatun 220 kV substation, mainly explained how to partially reinstall new buses, insulations and accessories without a full power cut, raising the crossover wires of main transformer buses,which maximize the running reliability during 35 kV buses reinstallation and minimize the loss of energy. By doing so the running safety of the power grid is ensured during the equipment reinstallation.