Project Overview

The State Grid Shihezi 750kV Substation Project is a major power transmission infrastructure project designed to enhance the reliability and efficiency of the Northwest China Power Grid. Located in Shihezi, Xinjiang, this high-voltage substation plays a critical role in supporting the west-to-east power transmission strategy, integrating renewable energy sources, and ensuring a stable electricity supply for industrial and residential users in the region.

The substation is part of China’s ultra-high-voltage (UHV) transmission network and serves as a key node in the 750kV grid. The project includes:
• 750kV switchgear and transmission equipment for high-capacity power handling.
• Multiple high-voltage transformers (750kV/330kV) to step down voltage levels for regional distribution.
• Advanced grid protection and control systems to enhance power flow stability and security.

By strengthening the Xinjiang power network, this substation supports the integration of wind and solar energy, reduces transmission losses, and improves overall grid performance.
Construction Plan & Execution

1. Site Selection & Civil Works

The substation was strategically located based on:
• Proximity to renewable energy hubs in Xinjiang.
• Seismic and climatic considerations, ensuring resilience against earthquakes and extreme weather.
• Accessibility for transmission corridors, allowing seamless power transfer across the region.

The civil engineering works included:
• Reinforced concrete foundations to support heavy electrical equipment.
• Seismic-resistant structural designs to withstand potential earthquakes.
• Advanced dust and sand protection measures to maintain system reliability in Xinjiang’s arid environment.
2. Transformer Installation & Electrical Infrastructure

The substation is equipped with:
• 750kV gas-insulated switchgear (GIS) for space-efficient and reliable power switching.
• High-performance power transformers (750kV/330kV) for efficient voltage regulation.
• Reactive power compensation systems to stabilize voltage fluctuations from renewable energy sources.

The installation process utilized:
• Prefabricated electrical modules for faster deployment and improved quality control.
• Heavy-duty cranes and precision alignment techniques to ensure proper equipment positioning.
• High-voltage insulation solutions to prevent power leakage and enhance safety.
3. Grid Connection & System Integration

The substation was integrated into the Northwest China Power Grid using:
• 750kV overhead transmission lines linking it to existing substations and power plants.
• SCADA (Supervisory Control and Data Acquisition) systems for real-time remote monitoring.
• Digital relay protection systems for fault detection and rapid response.

This integration enhances grid stability, facilitates efficient energy dispatch, and enables real-time monitoring of power flow across Xinjiang and beyond.
4. Smart Monitoring & Environmental Protection

The substation incorporates intelligent monitoring systems to ensure long-term efficiency:
• IoT-based sensors for predictive maintenance and performance tracking.
• Automated alarm systems for early detection of faults or equipment failures.
• Environmental impact mitigation measures, such as:
• Low-noise transformers to reduce sound pollution.
• Sand and dust-resistant coatings for outdoor equipment.
• Eco-friendly water drainage and waste management systems.
Design & Technical Services

1. Power System Design & Optimization

Our team provided advanced electrical engineering services, including:
• Load flow analysis and short-circuit studies to optimize power distribution.
• Harmonic filtering and reactive power compensation to enhance power quality.
• Voltage stability simulations to ensure grid reliability under different load conditions.

2. Safety & Security Systems

To protect critical infrastructure, the substation is equipped with:
• Fire suppression systems using advanced gas-based extinguishers.
• Cybersecurity solutions to safeguard SCADA and control networks.
• Surveillance cameras and access control systems for physical security.

3. Renewable Energy Integration & Smart Grid Compatibility

The substation is designed to handle large-scale solar and wind power integration, incorporating:
• Dynamic voltage regulation to manage fluctuating renewable energy input.
• Real-time grid synchronization for efficient energy dispatch.
• Compatibility with battery energy storage systems (BESS) for future upgrades.
After-Sales Service & Maintenance

1. Routine Maintenance & Equipment Inspection

Regular maintenance schedules include:
• Transformer oil analysis and insulation diagnostics to prevent failures.
• Switchgear and circuit breaker testing to ensure operational reliability.
• Periodic cleaning and dust protection to mitigate environmental wear.

2. Emergency Fault Response & Repair Services

Our 24/7 emergency response team ensures rapid troubleshooting and repairs for:
• Grid disruptions and voltage fluctuations.
• Lightning and surge damage to electrical components.
• Relay protection system failures or misoperations.

3. Future Upgrades & Capacity Expansion

To accommodate growing power demand, we provide scalable solutions:
• Upgraded transformers for increased load capacity.
• Smart grid technologies for AI-driven power management.
• Hybrid AC/DC transmission integration for improved efficiency.

4. Training & Technical Support

We offer:
• On-site and online training programs for power grid operators.
• Technical support and troubleshooting assistance via digital platforms.
• Workshops on advanced substation operation and maintenance.

The State Grid Shihezi 750kV Substation Project is a cornerstone of Xinjiang’s power grid expansion, facilitating efficient renewable energy integration and stable high-voltage power transmission. With cutting-edge engineering solutions, smart monitoring systems, and comprehensive after-sales services, this project ensures long-term reliability and sustainability.

For inquiries about substation design, engineering services, or maintenance solutions, please contact us today!