摘要
现有换流变压器冷却系统在大负荷期间散热能力不足,一定程度上导致换流变压器运行工况恶化,对换流变压器的寿命产生不利影响。在现有换流变压器冷却方式不变的前提下,提出了一种利用水喷雾方式辅助降低换流变压器本体和冷却器温升的设计方案,给出了各个辅助降温系统的设计流程及换流变压器事故油池排水量计算,并在工作现场取得了较好的降温效果。该方案以现有换流站阀外冷水池为水源,投入较小,便于工作人员运行维护,方便换流站的综合管理,有一定的推广价值。
The existing cooling system of converter transformer is insufficient in heat dissipation potential during periods of heavy load,which to some extent leads to the deterioration of the operating conditions of the converter transformer,and has a negative impact on the life of the converter transformer.Under the premise that the existing converter transformer cooling method remains unchanged,this paper proposes a design scheme that uses the water spray method to help reduce the temperature rise of converter transformer body and cooler,the design process of each auxiliary cooling system and the calculation of the displacement of oil pool in rheological accident of the converter transformer are given,and good cooling effect is achieved in the work site.The scheme uses the cold water pool outside the valve of the existing converter station as the water source,has less input,is convenient for the operation and maintenance of the staff,and is convenient for the comprehensive management of the converter station,and has certain promotion value.
作者
马小军
李洋
雷战斐
赵慧
MA Xiao-jun;LI Yang;LEI Zhan-fei;ZHAO Hui(Super High Voltage Company of State Grid Ningxia Electric Power Co.,Ltd,Yinchuan 750011,China)
出处
《电工电气》
2024年第7期57-60,共4页
Electrotechnics Electric
关键词
换流变压器
水喷雾
冷却系统
散热
converter transformer
water spray
cooling system
dissipate heat
