一起110 kV变压器高温过热故障综合分析及诊断

讲述了一起110 kV电力变压器内部发生高温过热故障后的分析和诊断过程,文章通过多种溶解气体分析法如特征气体法、三比值法、四比值法、总烃安伏法等对故障进行分析,准确判断了故障类型、严重程度,并准确判断出故障的大概发生部位,从而对设备的运行及检修提出策略参考,并在设备解体中印证了检修前的分析和判断,确保了设备和电网的安全稳定运行。

Comprehensive Analysis and Diagnosis of a High Temperature Overheat Fault of a 110 kV Transformer

This paper describes the analysis and diagnosis process of a high-temperature overheat fault in a 110 kV power transformer.The paper analyzes the faults by a variety of dissolved gas analysis methods,characteristic gas method,three-ratio method,four-ratio method and total hydrocarbon anem method,accurately judge the type and severity of the fault,and accurately determine the approximate location of the fault,thus to provide a strategic reference for the operation and maintenance of the equipment,and confirm the analysis and judgment before the repair in the disassembly of the equipment and ensure the safe and stable operation of equipment and power grid.