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维修型号：
| FR-A740系列新型号 | FR-A540系列老型号 |
| FR-A740-0.4K-CHT | FR-A540-0.4K-CHT |
| FR-A740-0.75K-CHT | FR-A540-0.75K-CHT |
| FR-A740-1.5K-CHT | FR-A540-1.5K-CHT |
| FR-A740-2.2K-CHT | FR-A540-2.2K-CHT |
| FR-A740-3.7K-CHT | FR-A540-3.7K-CHT |
| FR-A740-5.5K-CHT | FR-A540-5.5K-CHT |
| FR-A740-7.5K-CHT | FR-A540-7.5K-CHT |
| FR-A740-11K-CHT | FR-A540-11K-CHT |
| FR-A740-15K-CHT | FR-A540-15K-CHT |
| FR-A740-18.5K-CHT | FR-A540-18.5K-CHT |
| FR-A740-22K-CHT | FR-A540-22K-CHT |
| FR-A740-30K-CHT | FR-A540-30K-CHT |
| FR-A740-37K-CHT | FR-A540-37K-CHT |
| FR-A740-45K-CHT | FR-A540-45K-CHT |
| FR-A740-55K-CHT | FR-A540-55K-CHT |
| FR-A740-75K-CHT | FR-A540-75K-CHT |
| FR-A740-90K-CHT | FR-A540-90K-CHT |
| FR-A740-110K-CHT | FR-A540-110K-CHT |
| FR-A740-132K-CHT | FR-A540-132K-CHT |
| FR-A740-160K-CHT | FR-A540-160K-CHT |
| FR-A740-185K-CHT | FR-A540-185K-CHT |
| FR-A740-220K-CHT | FR-A540-220K-CHT |
| FR-A740-250K-CHT | FR-A540-250K-CHT |
| FR-A740-280K-CHT | FR-A540-280K-CHT |
| FR-A740-315K-CHT | FR-A540-315K-CHT |
| FR-A740-355K-CHT | FR-A540-355K-CHT |
| FR-A740-400K-CHT | FR-A540-400K-CHT |
| FR-A740-450K-CHT | FR-A540-450K-CHT |
| FR-A740-500K-CHT | FR-A540-500K-CHT |
| FR-A720系列新型号 | FR-A520系列老型号 |
| FR-A720-0.4K | FR-A520-0.4K |
| FR-A720-0.75K | FR-A520-0.75K |
| FR-A720-1.5K | FR-A520-1.5K |
| FR-A720-2.2K | FR-A520-2.2K |
| FR-A720-3.7K | FR-A520-3.7K |
| FR-A720-5.5K | FR-A520-5.5K |
| FR-A720-7.5K | FR-A520-7.5K |
| FR-A720-11K | FR-A520-11K |
| FR-A720-15K | FR-A520-15K |
| FR-A720-18.5K | FR-A520-18.5K |
| FR-A720-22K | FR-A520-22K |
| FR-A720-30K | FR-A520-30K |
| FR-A720-37K | FR-A520-37K |
| FR-A720-45K | FR-A520-45K |
| FR-A720-55K | FR-A520-55K |
| FR-A720-75K | FR-A520-75K |
| FR-A720-90K | FR-A520-90K |
| FR-F740系列新型号 | FR-F540系列老型号 |
| FR-F740-0.75K-CHT | FR-F540-0.75K-CHT |
| FR-F740-1.5K-CHT | FR-F540-1.5K-CHT |
| FR-F740-2.2K-CHT | FR-F540-2.2K-CHT |
| FR-F740-3.7K-CHT | FR-F540-3.7K-CHT |
| FR-F740-5.5K-CHT | FR-F540-5.5K-CHT |
| FR-F740-7.5K-CHT | FR-F540-7.5K-CHT |
| FR-F740-11K-CHT | FR-F540-11K-CHT |
| FR-F740-15K-CHT | FR-F540-15K-CHT |
| FR-F740-18.5K-CHT | FR-F540-18.5K-CHT |
| FR-F740-22K-CHT | FR-F540-22K-CHT |
| FR-F740-30K-CHT | FR-F540-30K-CHT |
| FR-F740-37K-CHT | FR-F540-37K-CHT |
| FR-F740-45K-CHT | FR-F540-45K-CHT |
| FR-F740-55K-CHT | FR-F540-55K-CHT |
| FR-F740-S75K-CHT | FR-F540-S75K-CHT |
| FR-F740-S90K-CHT | FR-F540-S90K-CHT |
| FR-F740-S110K-CHT | FR-F540-S110K-CHT |
| FR-F740-S132K-CHT | FR-F540-S132K-CHT |
| FR-F740-S160K-CHT | FR-F540-S160K-CHT |
| FR-F740-S185K-CHT | FR-F540-S185K-CHT |
| FR-F740-S220K-CHT | FR-F540-S220K-CHT |
| FR-F740-S250K-CHT | FR-F540-S250K-CHT |
| FR-F740-S280K-CHT | FR-F540-S280K-CHT |
| FR-F740-S315K-CHT | FR-F540-S315K-CHT |
步：首先询问用户损坏电气设备的故障现象及现场情况。
第二步：根据用户的故障描述，分析造成此类故障的原因。
第三步：对机器进行全面的清洁，确认被损坏的器件，分析维修恢复的可行性。
第四步：根据被损坏器件的位置，找出损坏器件的原因，以免下次类似故障出现。
第五步：出具详细检测与维修报价，甲方确认报价后进行维修。
第六步：修复后对设备进行负载实验，正常运行通知甲方，款到发货
