Project Overview

The State Grid Shihezi 750kV Substation Project is a key infrastructure development intended to support the efficiency and adaptability of the Northwest China Power Grid. Situated in Shihezi, Xinjiang, the substation contributes to the west-to-east power transmission strategy by facilitating the integration of renewable energy and reinforcing regional electricity supply for both industrial and residential users.

As part of China’s ultra-high-voltage (UHV) network, this substation functions as a core node in the 750kV grid system. The project includes:

• 750kV switchgear and supporting transmission equipment suitable for high-capacity operations

• Multiple 750kV/330kV transformers for voltage step-down and regional power distribution

• Grid protection and control systems aimed at supporting steady power flow and operational safety

Through strengthening the local transmission infrastructure, the project supports renewable energy integration, reduces potential transmission losses, and contributes to broader grid performance improvements.

Construction Plan & Execution

1. Site Selection & Civil Works

The substation’s location was selected based on considerations such as:

• Proximity to renewable energy generation sites in the Xinjiang region

• Seismic and climatic conditions to address environmental and structural demands

• Accessibility to existing and planned transmission corridors

Civil works included:

• Reinforced concrete foundations to support heavy-duty electrical equipment

• Structural measures designed to respond to seismic risks

• Sand and dust control systems to reduce the impact of arid environmental conditions

2. Transformer Installation & Electrical Infrastructure

The installation scope encompassed:

• 750kV gas-insulated switchgear (GIS) for space-saving and insulated switching

• 750kV/330kV transformers designed to support regional voltage regulation

• Reactive power compensation equipment for managing voltage fluctuations from renewable energy

The project utilized:

• Prefabricated modules to streamline deployment and enhance quality consistency

• Specialized lifting and alignment equipment for precise installation

• Insulation technologies to reduce energy leakage and promote safe operations

3. Grid Connection & System Integration

To connect with the broader Northwest China Power Grid, the substation was linked via:

• 750kV overhead transmission lines to adjacent substations and generation facilities

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

• Digital protection systems for fault detection and responsive control

This integration contributes to improved grid coordination, energy dispatch, and system observability across the region.

4. Smart Monitoring & Environmental Protection

The substation incorporates digital monitoring features to support long-term functionality:

• IoT-based sensors for equipment condition tracking and maintenance planning

• Automated alarm functions to assist with early fault identification

• Environmentally conscious measures, including:

• Low-noise transformer designs

• Coatings to resist sand and dust accumulation

• Water and waste management systems developed with sustainability in mind

Design & Technical Services

1. Power System Design & Optimization

Engineering services included:

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

• Harmonic mitigation and reactive compensation to support power quality

• Voltage simulations under variable load conditions to assess operational performance

2. Safety & Security Systems

To enhance operational protection, the substation is equipped with:

• Gas-based fire suppression equipment for electrical safety zones

• Cybersecurity protocols integrated with SCADA and automation systems

• Access control and surveillance to support physical infrastructure security

3. Renewable Energy Integration & Smart Grid Compatibility

The substation is configured to support renewable energy applications through:

• Voltage regulation equipment for variable input from wind and solar sources

• Synchronization mechanisms for coordinated energy dispatch

• Interfaces allowing future integration with battery energy storage systems (BESS)

After-Sales Service & Maintenance

1. Routine Maintenance & Equipment Inspection

Service offerings include:

• Transformer oil diagnostics and insulation monitoring

• Testing of switchgear and circuit breakers

• Cleaning schedules and dust protection suited for local environmental conditions

2. Emergency Fault Response & Repair Services

Support is available for:

• Voltage deviations and power delivery issues

• Surge events and lightning-related faults

• Relay misoperations or communication inconsistencies

3. Future Upgrades & Capacity Expansion

To support evolving grid requirements, scalable upgrade options are available:

• Transformer capacity enhancements to meet rising loads

• Integration of smart grid functionalities with AI-based tools

• Hybrid AC/DC system compatibility for long-distance transmission scenarios

4. Training & Technical Support

We offer:

• On-site and virtual training programs tailored for grid operation teams

• Technical assistance through remote support platforms

• Interactive workshops focusing on substation systems and maintenance practices

Conclusion

The State Grid Shihezi 750kV Substation Project contributes to the ongoing development of Xinjiang’s power grid, supporting renewable energy integration and long-distance power transmission. Through a combination of engineered infrastructure, digital monitoring tools, and comprehensive service support, the project adds value to the regional grid framework.

For more information regarding substation solutions, engineering services, or maintenance planning, please feel free to contact us.