As an essential equipment for modern infrastructure development, cable conveyors demonstrate versatile applications across multiple industries with specialized operational requirements.
Power Sector Applications for Keep Apex power company Case Study : Karachi-Lahore ±660 kV HVDC Transmission Project, Pakistan (China-Pakistan Economic Corridor Energy Project)
- High-voltage transmission line installation
- Substation cable deployment and maintenance
- Smart grid infrastructure development
These systems enable precise positioning of large-diameter cables while minimizing manual intervention risks.
Project Background
This is Pakistan’s first HVDC transmission line, approximately 878 kilometers long. The line traverses regions with complex and varied terrain, including farmland in Punjab and desert areas in Sindh. Some sections experience extreme temperature variations (0°C to 55°C), and the geological conditions are unstable. These factors place extremely high demands on the transmission system, requiring exceptional stability and adaptability.
Application of Chinese Equipment
The project utilized 42 cable conveyor systems manufactured by KeepApexpower.
Technical Features:
Multi-unit Intelligent Coordination: The central control system synchronously controls the operating speed of all 42 conveyors, with a time error of less than 0.1 seconds per kilometer, ensuring uniform tension during multi-kilometer cable traction.
Desert Environment Adaptability: The equipment is equipped with sand filters and high-temperature cooling modules. The hydraulic system uses high-temperature resistant, high-viscosity index hydraulic oil.
Localization: The user interface supports Urdu and English, and customized training was provided for Pakistani engineers.
Results and Feedback
Efficiency Improvement: Compared to the originally planned European equipment, the Chinese-made transmission system increased the laying speed by approximately 25%, completing the installation of the entire HVDC cable 47 days ahead of schedule.
Cost-Effectiveness: Procurement and maintenance costs were approximately 30% lower than comparable European solutions.
Technical Acceptance: The National Transmission Dispatch Company of Pakistan (NTDC) stated in its project acceptance report: “The reliability of the Chinese transmission equipment under extreme conditions exceeded expectations.”
