110 kV半高型布置变电站的改造实践
Modification Practice of a 110 kV Half-height Layout Substations
-
摘要:
建于上世纪80年代至90年代初期的110 kV变电站，由于周边负荷增长，原有规模已经不能满足发展的需要，并且普遍存在砼杆老化剥落、建筑漏雨、设备老化、备件难寻、隔离开关卡涩等诸多影响运行的隐患，升级改造迫在眉睫。文章从不停电改造和全停电改造两个方面提出多套110 kV、220 kV改造方案，并就不停电改造的步骤、注意事项等做了详细分析说明。通过改造可以提升设备水平，改善运行工况，满足负荷需要，提高供电能力。文章为后续变电站的改造设计提供有益借鉴，可产生较大的经济效益和社会效应。 Abstract:110 kV substations, established from the 1980s to the early 1990s, cannot meet developing needs owing to growth of load around, and have such problems as aging and peeling of cement pole, rain leakage of building, equipment aging, difficult searching of spare parts and stuck isolating switch, all of which are potential risks to influence their operation. So, it is an urgent task to upgrade or reconstruct them. In the aspects of reconstruction without turning off electricity and t reconstruction by turning off electricity, this paper proposed several sets of 110 kV and 220 kV reconstruction schemes and made specific analysis and instructions on steps and precautions of reconstruction without turning off electricity. Reconstruction will improve their equipment level and operation situation so as to make them satisfy the demand of load and enhance electricity supply capacity. Moreover, as this paper is of beneficial reference for subsequent reconstruction and design of substations, it will produce huge economic benefits and social effects.
下载:
