/01，项目简介
一艘在北欧作业的港口绞吸式挖泥船 lost its cutter drive motor at the end of a contract period. The motor was a fixed-speed squirrel-cage submersible 来自一家被收购的欧洲制造商 并于 2000 年代中期停产。 没有备件。
The customer needed a drop-in replacement before the next contract period started，fourteen weeks away. The new motor had to bolt to the existing ladder head, accept 相同 coupling, take 相同 protection signal wiring back to the vessel switchgear, and produce 相同 nominal shaft power.
/02，挑战
三件事使这个项目并不简单:
- 原始图纸不完整。 客户有外形图但没有内部绕组方案。 所有内部结构都必须根据额定铭牌数据和尺寸包络重新设计。
- 安装包络很紧。 原电机使用非标准法兰和定制的轴延伸。 TKBS 标准配置接近但不完全相同。
- 保护信号布线使用了一种旧式约定。 原始五区保护器布线使用的引脚分配与当前 TKBS 标准不匹配。 The vessel switchgear had to either be rewired or the new motor had to follow the legacy convention.
/03，工程方案
Trident 工程办公室在三个并行轨道上解决问题。 The electrical engineer ran the winding scheme calculation 根据铭牌 data, targeting 相同 shaft power and current draw. The mechanical engineer modified the standard TKBS flange to match the legacy bolt pattern and added a custom shaft extension to match the original coupling fit.
对于保护布线,我们向客户提出了两种方案: a Trident-standard pinout with a small auxiliary terminal box on the vessel side to remap, 或者定制旧式引脚分配的电机。 The customer chose the standard pinout with the auxiliary remap，better long-term maintainability if the next motor 需要使用标准目录单元。
/04，TKBS 配置
最终配置:
/05，制造与测试
项目第 3 周开始生产 after the customer signed off the technical proposal and outline drawing. Motor arrived in Dordrecht in week 10 进行进货检验、精饰和绝缘处理。
第 12 周的 FAT 包括完整的 IEC 60034 例行序列 plus the Trident-standard pressure test on the motor shell and five-zone protection sensor verification. Customer attended the witness test on site in 多德雷赫特。 所有测量结果均在规格范围内。
/06，结果
Motor delivered to the vessel in week 14 by road freight from 多德雷赫特。 Customer's electrical team installed and commissioned with phone support from the Trident engineering desk，the motor was running on full load by the end of 相同 week.
船舶按计划恢复服务。 The motor has been operating continuously since. 提供了一个备用的保护信号重映射模块 作为客户船队维护库存的后续订单。