零损耗深度限流装置在钢铁企业供电系统中的应用

Application of Zero Loss Deep Current Limiting Device in Power Supply System of Iron and Steel Enterprises

针对滨河变电所运行方式改变后系统参数存在的问题,本钢在主变压器低压侧应用了零损耗深度限流装置限制短路电流。根据零损耗深度限流装置的动作原理、安装方式,开展试验对其动作逻辑进行验证。以滨河供电系统为例,分析了应用零损耗深度限流装置后对系统参数及系统结构等方面的影响,并结合发电厂33#发电机系统故障分析了零损耗深度限流装置在应用中的优、缺点。

In view of the problems of the system parameters after the change of the op⁃eration mode of Binhe substation,Bensteel applied the zero-loss deep current limiting de⁃vice to limit the short-circuit current on the low-voltage side of the main transformer.Ac⁃cording to the operation principle and installation method of the zero loss deep current limit⁃ing device,tests were carried out to verify its operation logic.Taking the Binhe power sup⁃ply system as an example,this paper analyzes the impact on system parameters and system structure after applying zero-loss deep current limiting device,as well as the advantages and disadvantages of zero-loss deep current limiting device in the application by combining with the fault of 33#generator system of the power plant.