主变压器金属附件典型故障分析  

Typical Fault Analysis of Main Transformer Metal Accessories

作　　者：谢亿[1] 王军[1] 李文波[1] 欧阳克俭[1] 胡加瑞[1] 

机构地区：[1]国网湖南省电力公司电力科学研究院,长沙410007

出　　处：《内蒙古电力技术》2015年第6期86-88,92,共4页Inner Mongolia Electric Power

摘　　要：主变压器金属附件断裂和锈蚀影响电网的安全运行。通过分析有载调压分接开关转动连杆抱箍腐蚀开裂、套管防雨罩锈蚀、套管抱夹开裂以及波纹管超限位变形4种典型故障的原因,提出加强主变压器投运前的入网监督和投运后主变压器金属附件的巡视排查等措施,避免因以上问题而发生主变压器的重大安全事故,从而保证电网安全运行。Fracture and corrosion of the main transformer metal accessories affect thesafe operation of power grids. The four main typical faults of main transformer metalaccessories were analyzed, ie. rotating rod hoop of load tap changers corrosion cracking,casing covers corrosion, casing clamp cracking, bellows deformation exceeding limit. Basedon the above analysis, suggestion of strengthening the metal supervision in materials,infrastructure and transport inspection stage have been proposed to avoid major accidents ofthe main transformer caused by metal accessories rusty breakage problems.

关 键 词：主变压器 抱箍 防雨罩 抱夹 波纹管 

分 类 号：TM207[一般工业技术—材料科学与工程]