Project Overview

The 220kV Sounding Sand Bay - Guosanliang Transmission Line I & II Project is a regional high-voltage power transmission initiative aimed at improving the stability and reliability of the local power grid. It contributes to enhancing power delivery efficiency, supporting industrial operations, and meeting growing electricity demands in the surrounding areas.

Key Project Highlights:

• Total Line Length: 53.606 km

• Voltage Level: 220kV

• Number of Steel Towers: 144

• Transmission Circuits: Dual-circuit configuration

This project helps reduce transmission losses and strengthens interconnection between substations in the region.

Construction Plan & Execution

1. Route Planning & Site Analysis

The route passes through desert areas, hilly sections, and open plains. To address geographical diversity, the project incorporated:

• Detailed topographic and geological surveys to support route optimization.

• Structural resilience evaluations, including wind and sand impact analysis.

• Environmental assessments to mitigate ecological disturbance.

GIS (Geographic Information System) tools were utilized to balance route efficiency with land use and environmental considerations.

2. Tower Construction & Foundation Engineering

144 steel lattice towers were designed and erected, considering local environmental and mechanical conditions.

• Use of high-strength steel for enhanced load capacity.

• Anti-corrosion surface treatment adapted for harsh climates.

• Aerodynamic profiles designed to withstand strong winds.

Foundation systems were customized based on terrain:

• Deep pile foundations in sandy soils.

• Reinforced concrete in stable, rocky areas.

• Anchored solutions in areas with high wind exposure.

In remote zones, aerial installation techniques such as helicopter-assisted tower assembly were adopted to improve safety and construction efficiency.

3. Conductor Installation & Stringing

To support long-term efficiency, the line features:

• Low-resistance aluminum alloy conductors to minimize energy loss.

• Composite insulators designed for mechanical stability and weather endurance.

• Controlled tension stringing methods for accurate alignment and reduced transmission interference.

4. Grid Integration & Performance Optimization

The transmission line was connected to the existing grid infrastructure using:

• Power control systems for voltage regulation.

• Reactive power support to manage load fluctuations.

• Digital automation for real-time monitoring and adjustment.

Protection systems were included to help reduce outage risks and maintain overall grid stability.

Design & Technical Services

1. Electrical System Studies

A series of engineering studies supported the project’s implementation:

• Load flow and voltage stability simulations.

• Electromagnetic field and grounding safety assessments.

• System coordination studies to support smooth integration into the grid.

2. Digital Monitoring Solutions

Smart grid features were integrated, including:

• SCADA platforms for centralized monitoring.

• IoT-enabled sensors for real-time condition tracking.

• Automated alert and diagnostic systems to assist fault identification and maintenance planning.

3. Environmental and Safety Measures

Measures were implemented to reduce operational and construction impact:

• Noise-reduction line design in residential proximity.

• Sand and dust protection for uninterrupted line performance.

• Avian diverters to reduce bird collision risks.

After-Sales Service & Maintenance

1. Regular Inspection & Maintenance

To ensure consistent operation:

• UAV-based visual inspections are used for coverage and accuracy.

• Routine checks of tower structures and conductor tension.

• Insulator testing and hardware evaluations based on operating cycles.

2. Emergency Response

A standby response team is available to address:

• Damage from severe weather such as sandstorms or high temperatures.

• Unexpected grid faults or service interruptions.

• Operational anomalies affecting line performance.

3. Scalability & Upgrade Support

Services are available for potential system development, including:

• Conductor or substation equipment upgrades.

• Integration planning with future renewable energy sources.

• Feasibility support for hybrid AC/DC applications where needed.

4. Technical Support & Training

We offer continued service through:

• On-site and remote training for grid personnel.

• Maintenance workshops and knowledge-sharing sessions.

• Ongoing engineering support for system optimization and lifecycle management.

Conclusion

The 220kV Sounding Sand Bay - Guosanliang Transmission Line I & II Project represents a meaningful contribution to regional power infrastructure. Through well-considered planning, tailored engineering solutions, and long-term technical support, the project is designed to meet current energy needs while allowing room for future system enhancements.

For more information on power transmission solutions or support services, please feel free to contact us.