In the field of energy transmission, the reliability and operational efficiency of systems directly impact overall operational safety and economic benefits. Recently, our company successfully completed a high-voltage soft-start system upgrade project for a key oil pumping station at a large crude oil storage and transportation company. Driven by innovative technology, we helped the client achieve comprehensive upgrades to their equipment and full optimization of their operational modes.

I. Project Background

The multiple oil pumping stations belonging to this customer are responsible for the critical task of crude oil transportation. The original system used... “ One to two ” The operating mode, in which a single high-voltage frequency converter drives two motors simultaneously, suffers from issues such as insufficient operational flexibility, low redundancy, and high maintenance complexity. To enhance the overall reliability, flexibility, and energy efficiency management of the system, the customer has decided to carry out a comprehensive upgrade of the drive system, transforming the existing mode into... “ One-to-one ” Independent control architecture.

II. Project Challenges

The renovation process faces multiple challenges:

1. The oil transfer pump is a critical piece of equipment that operates continuously, and the window for shutting down the pump is extremely limited. Therefore, any modifications must be carried out in stages with precise timing to ensure that normal pipeline operations are not affected.
2. The task must be completed within the planned period. 6 The installation, wiring, and commissioning of high-voltage soft starter cabinets place extremely high demands on product performance, engineering collaboration, and service responsiveness.

III. Solution

In response to the project requirements, our company has provided: 6 set   ATA QB-H10/5000 Series High-Voltage Soft Starter Cabinet , enabling independent control of each motor. This product boasts the following significant advantages:

• Smooth start, grid-friendly Employing voltage ramp and current-limiting starting technology, the motor’s starting current is controlled within the rated current. 4 Within a multiple of the rated value, it effectively suppresses grid disturbances, prevents voltage dips, and ensures the stable operation of other equipment connected to the same power grid.
• Smooth torque, mechanical protection The startup process is smooth, significantly reducing the mechanical stress on the shaft system, valves, and pipelines caused by pump loads, thereby extending the service life of the equipment.
• High-reliability design The key components are made of high-quality industrial-grade parts, and the design balances protection and heat dissipation, making it suitable for harsh industrial environments and capable of supporting long-term continuous operation.
• Flexible control and comprehensive protection The parameters can be flexibly set according to the actual load, and the system is equipped with multiple electrical protections—including overcurrent, phase-loss, and short-circuit protection—to ensure system safety.
• Independent control, architecture optimization ： “ One-to-one ” The mode enables precise control of individual pumps, enhancing system scalability and maintainability while making the operational approach more flexible and efficient.

4. On-site Implementation

Our company has dispatched an experienced engineering and technical team to conduct thorough on-site investigations in advance and develop a meticulously planned construction schedule along with contingency plans. During the renovation window period, the team worked closely with the client’s scheduling team, efficiently completing a series of tasks—including dismantling old equipment, installing new cabinets, performing electrical wiring, and system commissioning—while strictly adhering to all scheduled milestones throughout the entire process, thereby achieving... “ Zero delay ” Delivery. The equipment was successfully put into operation at one time, and all parameters meet the design requirements.

V. Project Outcomes

1. All high-voltage soft starters were put into operation on schedule without affecting normal transmission operations.
2. The system startup process is remarkably smooth, significantly reducing grid disturbances and mechanical vibrations, which helps lower equipment maintenance costs.
3. “ One-to-one ” The model enhances the system’s operational flexibility and operational reliability, laying the foundation for customers to advance refined management and energy efficiency optimization.
4. The outstanding performance of our products and the team’s professional service have earned high praise from our customers.

VI. Conclusion

This project represents a successful implementation of the critical power system upgrade in the energy transmission sector, fully demonstrating our company’s high-voltage soft-start equipment’s capabilities in... in reducing starting impact, protecting equipment, and adapting to demanding construction schedules Our strong technological capabilities, coupled with comprehensive service offerings characterized by rapid response and efficient deployment, enable us to continuously deepen our expertise in the field of motor drives and control. We are committed to providing customers with safer, more reliable, and more efficient solutions, helping various industrial systems achieve stable and high-performance operations.