NOUFERROUS METALLURGICAL EQUIPMENT

Based on the actual situation of 66kV substation in copper smelting enterprises, this paper discusses the substation expansion design scheme through theoretical analysis, scientific calculation and the current equipment level. The main contents of the discussion include: the site layout scheme of the extension part. The electrical parameters of three transformers in three operating modes are analyzed and compared to determine the main circuit switchgear and line configuration on the 66kV side. 10kV side copper tube bus load, dynamic stability and thermal stability check calculation; Secondary equipment configuration and main protection setting, lightning protection range calculation after lightning rod shift, etc. Practice has proved that the expanded substation runs well, meets the needs of enterprises and achieves the design purpose.