Remote diagnosis method and system for secondary current loop of line on-load test

The invention discloses a line on-load test secondary current loop remote diagnosis method and system. The method comprises the following steps: collecting current and voltage simulation data generated by various protection devices in an on-load test; uploading the data, judging the data through CT transformation ratio remote diagnosis, phase sequence wiring remote diagnosis and loop polarity remote diagnosis, and giving a diagnosis result; whether the secondary current is correct or not can be automatically analyzed and judged through CT transformation ratio remote diagnosis, phase sequence wiring remote diagnosis and loop polarity remote diagnosis, the workload of on-site operation and maintenance personnel is reduced, meanwhile, the problem of manual misjudgment is avoided, and the equipment commissioning time is shortened. 本发明公开了一种线路带负荷试验二次电流回路远程诊断方法及系统包括，采集带负荷试验中各类保护装置产生的电流和电压模拟数据；将所述数据上传，通过CT变比远程诊断、相序接线远程诊断和回路极性远程诊断对所述数据进行判别，给出诊断结果；本发明通过CT变比远程诊断、相序接线远程诊断和回路极性远程诊断能够自动进行分析判断二次电流是否正确，减少现场运维人员的工作量，同时也避免存在人为