Recently, Shaanxi Yuanda Electric Power Engineering Co., Ltd., as the contractor, completed the signal box-type substation defect rectification project for the Huashan Power Supply Workshop, which was contracted out by the Xi'an Power Supply Section of China Railway Xi'an Group Co., Ltd.The project covered defect rectification work including removal, painting, and restoration of equipment door panels, busbar extension and insulation rectification, component hole drilling, installation, and wiring, secondary cable rectification, equipment commissioning and transportation, as well as replacement of switch bodies and transformers, and cable splicing.At present, all related work has been completed, acceptance has been passed, and the equipment is operating normally.
Project background: demand for defect rectification of signal box-type substations in the railway power supply section
The railway power supply system has high reliability requirements for signal box-type substation equipment.During operation, defects requiring rectification appeared in the signal box-type substation of the Huashan Power Supply Workshop. The Xi'an Power Supply Section of China Railway Xi'an Group Co., Ltd., as the employer, organized defect rectification work on the relevant equipment.Shaanxi Yuanda Electric Power Engineering Co., Ltd., as the contractor, undertook the on-site construction work.The full name of the project is "Signal Box-Type Substation Defect Rectification for the Huashan Power Supply Workshop." The construction content centered on aspects such as equipment appearance restoration, busbar insulation treatment, component installation and wiring, and secondary cable rectification, aiming to eliminate equipment defects and restore the signal box-type substation to normal operating condition.
Main work content: door panel spraying, busbar rectification, and component installation
According to project requirements, Yuanda Electric completed multiple specific tasks.A total of 8 locations had equipment door panels removed, sprayed, and reinstalled, and the appearance of the box-type substation was repaired;150 meters of busbar extension and insulation rectification and replacement were carried out to improve the busbar insulation condition;8 sets of components such as ammeters and live display indicators were installed with openings, wiring, and connections, restoring the installation and wiring of the relevant components;250 meters of secondary cables were rectified, and the cables of the secondary circuits were organized and replaced.In addition, the project also involved defect rectification work such as replacement of switch bodies and transformers, and cable splicing.The above work counts and lengths are all actual construction quantities of the project and do not represent the total equipment quantity.
- Removal, painting, and reinstallation of 8 equipment door panels
- Busbar extension and insulation rectification and replacement of 150 meters
- Hole drilling, installation, and wiring for 8 sets of components such as ammeters and live-line indicators
- Rectification of 250 meters of secondary cables
- Rectification of defects such as replacement of switch bodies and transformers, and cable splicing
On-site commissioning and transportation support: 8 commissioning sessions and 4 transport operations
To ensure the normal operation of the equipment after rectification, the project carried out 8 on-site commissioning sessions and 4 transport operations.The commissioning work involved on-site inspection and functional verification of the signal box transformer equipment after rectification, and the transportation work ensured the on-site flow of related equipment and materials.Through the coordination between commissioning and transportation, the project advanced the on-site implementation of defect rectification as planned.It should be noted that the above commissioning and transportation counts are operational records during project execution and do not constitute a description of the total equipment quantity or services beyond the contract.
Project results: accepted as qualified, equipment operating normally.
At present, all work related to the signal box-type substation defect rectification project of the Huashan Power Supply Workshop has been completed, accepted as qualified, and the equipment is operating normally.The project was implemented by Shaanxi Yuanda Electric Power Engineering Co., Ltd. as the contractor, and the Xi'an Power Supply Depot of China Railway Xi'an Group Co., Ltd. organized the acceptance as the employer.This case demonstrates Yuanda Electric's on-site construction and organizational capabilities in the field of railway power supply equipment defect rectification, and also provides reference operational experience for similar signal box-type substation rectification projects in the future.
Follow-up arrangements
Yuanda Electric will continue to base itself on electric power engineering construction operations, focus on actual needs such as railway power supply equipment defect rectification, carry out on-site construction and quality control well, and provide reliable engineering services to partner organizations.