埋弧炉变压器无功补偿的安全运行  

THE SAFE OPERATION OF REACTIVE POWER COMPENSATION FOR SUBMERGED ARC FURNACE TRANSFORMER

作　　者：范新萍 马杰斯 

机构地区：[1]锦州新生变压器有限责任公司,锦州中国121013 [2]北京京东方显示技术有限公司,北京中国100176

出　　处：《铁合金》2014年第2期39-43,共5页Ferro-alloys

摘　　要：为解决埋弧矿热炉变压器中压补偿存在的不安全因素,较详细的介绍了保护方法的改进及注意事项。在一次设备方面应加装Z型接地变压器和设置消弧消谐装置;在二次设备方面应设置零序电流保护和增设变压器反限时过电流保护。经过如此保护,变压器运行稳定,企业生产效益显著。According to the existing unsafe factors for submerged arc furnace transformer medium voltage compensation, this paper introduced the improvement of protection methods and the precautions. It should add Z-Type grounding transformer and set arc blow-out and harmonic elimination installation for primary equipment. Zero sequence current protection and additional transformer reverse time limit over current protection were be set on secondary equipment. After such a protection, transformer run stable, enterprise production benefit is remarkable.

关 键 词：埋弧炉 中压补偿 接地 变压器 过电压 保护 

分 类 号：TF33[冶金工程—冶金机械及自动化]