近年来变电站已广泛使用有载调压变压器，有效地提高了电压质量。但由于各种原因，有载分接开关在运行中会出现连调故障，严重影响了运行安全，尤其在无人值班变电站，远方遥调对有载分接开关可靠性要求更高。由于连调故障的出现，给运行人员造成了很大的心理压力，严重影... In recent years, substations have been widely used on-load voltage regulating transformers, effectively improving the voltage quality. However, due to various reasons, on-load tap-changer may cause continuous adjustment failure during operation, seriously affecting operational safety, especially in unattended substation. Remote remote adjustment requires more reliability of on-load tap changer. As the continuous tone failure, to the operating staff caused a lot of psychological pressure, serious shadow ...