Project Overview

The Xing County – Lüliang 500kV Transmission Line Project is a strategic power infrastructure initiative located in Shanxi Province, China. Designed to enhance grid reliability and transmission capacity in the region, the line connects the proposed Xing County 500kV Substation to the existing Lüliang 500kV Substation, passing through Lin County, Liulin County, Lishi District, and Zhongyang County.

Project Highlights

• Total Length: 133 km (Circuit I), 134 km (Circuit II)

• Number of Transmission Towers: 345

• Design Institute: Shanxi Electric Power Survey and Design Institute

• Supervision Unit: Jintong Project Management Consulting Co., Ltd.

• Construction Contractors:

• Sections 1–3: Shanxi Transmission & Transformation Company

• Sections 4–5: Shanxi Power Supply Installation Company

This project supports the regional power network by improving load transfer capabilities and ensuring a more stable electricity supply to industrial and residential users in Lüliang and surrounding areas.

Construction Plan & Execution

1. Route Planning & Site Selection

The transmission line crosses varied terrain including mountains, river valleys, and populated areas. Key planning considerations included:

• Geotechnical and seismic assessments to determine safe tower locations.

• Meteorological studies for structural resilience against extreme weather.

• Environmental impact reviews to minimize ecological disturbance.

GIS-based modeling was used to optimize the route alignment, reduce land use conflicts, and enhance transmission efficiency.

2. Tower Construction & Foundation Engineering

The 345 transmission towers were designed for durability and structural performance in complex environments:

• High-strength steel lattice towers with corrosion-resistant coatings.

• Compact designs to reduce land occupation and visual impact.

Foundation types were selected based on soil conditions:

• Rock-anchor foundations for mountainous areas.

• Deep-pile and bored pile foundations for areas requiring higher load capacity.

In steep or inaccessible locations, helicopter-assisted installation was applied to reduce disruption and improve construction efficiency.

3. Conductor Installation & Stringing

The transmission line uses advanced conductor and insulation technologies:

• High-efficiency conductors to reduce power loss.

• Anti-corrosion and anti-icing treatments for extended lifespan.

• Composite insulators for enhanced mechanical and electrical reliability.

Precision stringing techniques ensured accurate conductor positioning and optimal transmission performance.

4. Grid Integration & Substation Connectivity

The project strengthens regional grid infrastructure through its connection to the Lüliang 500kV Substation. Key integration elements include:

• Efficient transformers for stable voltage regulation.

• Real-time monitoring systems for system diagnostics and protection.

• Reactive power compensation to support voltage stability during peak loads.

Smart grid technologies allow for dynamic load management and automated fault detection, improving operational flexibility.

Design & Technical Services

1. Power System Studies & Optimization

Our engineering team provided technical services including:

• Load flow analysis for energy distribution planning.

• Electromagnetic field evaluation for safety compliance.

• Voltage fluctuation control to maintain grid balance.

2. Digital Automation & Smart Grid Integration

To modernize regional infrastructure, the project incorporates:

• SCADA systems for centralized monitoring and control.

• IoT-based predictive maintenance tools to reduce equipment downtime.

• Automated regulation systems to respond to load variations in real time.

3. Environmental & Safety Measures

To meet regulatory standards and minimize environmental impact, we implemented:

• Low-noise transmission systems in residential zones.

• Seismic-resistant structural designs for high-risk areas.

• Bird protection solutions such as flight diverters in ecologically sensitive corridors.

After-Sales Service & Maintenance

1. Routine Inspection & Preventive Maintenance

• Regular inspections using drones and thermal imaging to identify early faults.

• Transformer testing and voltage regulation analysis.

• Line cleaning to maintain insulation performance and reduce power losses.

2. Emergency Response & Operational Support

• 24/7 technical response team for outage recovery and repair.

• Rapid mobilization for storm damage and natural hazard incidents.

• Remote system diagnostics and troubleshooting via SCADA platforms.

3. Future Expansion & Grid Upgrades

• Capacity expansion services, including tower reinforcement and conductor upgrades.

• Integration of advanced digital control and AI-assisted power flow systems.

• Development of hybrid AC/DC transmission paths for improved efficiency.

4. Training & Technical Support

• Customized training programs for power system operators and maintenance teams.

• Technical workshops on high-voltage equipment and emergency protocols.

• Long-term consultation support for grid optimization and future projects.

Conclusion

The Xing County – Lüliang 500kV Transmission Line Project represents a significant step toward strengthening Shanxi’s power infrastructure. By increasing transmission capacity and reinforcing grid reliability, the project supports the region’s energy needs while laying the foundation for future expansion.

Combining advanced engineering, efficient construction, and comprehensive technical support, we are committed to delivering a resilient and sustainable power transmission system.

For more information on transmission solutions, grid integration, or after-sales services, please contact us.