Project Overview

The State Grid Ganquanbao 750kV Substation Project is an important infrastructure initiative supporting the enhancement of power transmission capacity in Northwest China. As part of the regional grid expansion, the substation facilitates efficient energy flow and strengthens the interconnection between Xinjiang and other provinces.

Located in Ganquanbao, Xinjiang, the substation is designed to accommodate electricity from renewable sources such as wind and solar, while maintaining steady transmission toward central and eastern China. The project includes:

• 750kV switchgear and transmission equipment designed for large-scale power flow management

• High-voltage transformers for voltage step-down and regional distribution

• Integrated control and protection systems to support grid stability and operational safety

The project contributes to the development of the ultra-high-voltage (UHV) network and supports broader efforts to diversify China’s energy structure.

Construction Plan & Execution

 1. Site Selection & Civil Works

The substation site in Ganquanbao was selected based on multiple criteria:

• Proximity to renewable energy facilities in the region

• Evaluation of ecological sensitivity and efforts to minimize environmental impact

• Accessibility for integration with existing and planned transmission infrastructure

The civil engineering scope included:

• Reinforced concrete foundations for large-scale equipment installation

• Seismic-resilient design features suitable for the region’s geotechnical conditions

• Sand and dust mitigation systems to help ensure operational continuity

 2. Electrical & Transformer Installation

Key electrical installations featured:

• 750kV GIS (Gas-Insulated Switchgear) for compact configuration and insulation efficiency

• Step-down transformers (750kV/330kV) to enable power distribution at lower voltages

• Surge arresters and reactive power devices to support voltage control

Modular construction approaches were used to:

• Improve overall construction efficiency

• Enhance safety through factory pre-assembly

• Streamline equipment layout for optimized performance

 3. Grid Connection & System Integration

The substation was integrated into the Northwest China power network through:

• 750kV overhead lines connecting to adjacent substations

• Protection and automation systems to support rapid fault response

• SCADA (Supervisory Control and Data Acquisition) systems for remote supervision

This integration helps improve grid resilience and supports the long-distance delivery of renewable energy.

 4. Smart Monitoring & Environmental Considerations

For ongoing performance and sustainability, the substation includes:

• IoT-enabled sensors for equipment condition monitoring

• Automated alerts for early fault detection

• Environmentally conscious design elements, such as:

• Transformer noise-reduction structures

• Waste heat utilization systems

• Drainage systems designed to minimize soil impact

Design & Technical Services

 1. Electrical System Design

Engineering services included:

• Load flow and short-circuit analysis to inform system configuration

• EMC (Electromagnetic Compatibility) assessments for interference control

• Thermal management strategies adapted to Xinjiang’s climate conditions

 2. Safety & Security Measures

To support operational safety and equipment protection, the substation includes:

• Gas-based fire suppression systems for sensitive electrical areas

• Cybersecurity measures integrated with SCADA networks

• Physical protection including surveillance systems and access controls

 3. Renewable Energy Integration

The substation is configured to manage variable power inputs from renewable sources through:

• Reactive power compensation systems for voltage support

• Synchronization technologies to align generation and grid operations

• Compatibility with energy storage systems (BESS) for future flexibility

After-Sales Service & Maintenance

 1. Routine Maintenance & Inspection

Comprehensive maintenance services include:

• Transformer oil sampling and diagnostics

• Periodic inspection of breakers and switchgear

• Cleaning protocols adapted for desert environments

 2. Emergency Response & Fault Repair

A response mechanism is in place for:

• Grid disturbances due to environmental or equipment factors

• Surge-related damage from lightning or switching events

• Relay system anomalies and communication issues

 3. Future Expansion & System Upgrades

Support is available for scalable grid enhancements, such as:

• Upgrading transformer capacity to meet increased demand

• Integration of smart grid components for improved operational control

• Evaluation of hybrid AC/DC approaches for long-distance efficiency

 4. Training & Technical Support

We provide tailored support programs, including:

• Operator training both on-site and remotely

• Technical assistance via digital service platforms

• Workshops covering maintenance techniques and best practices

Conclusion

The State Grid Ganquanbao 750kV Substation Project serves as a regional hub for power transmission, supporting renewable energy development and grid interconnection. Through careful engineering, technology integration, and service planning, the project contributes to the advancement of a more efficient and adaptable power system in Northwest China.

For further information about substation engineering, transmission system design, or maintenance services, please feel free to contact us.