China’s First Prefabricated Substation in Gansu
A Leap in power infrastructure.
Image for illustration purposes.
In a significant advancement for China’s power grid, the first 35kV prefabricated substation in Gansu province has been successfully commissioned. Located in Yangxiang village, Sunan Yugu autonomous county, this innovative substation represents a new era in electrical infrastructure.
The Yangxiang substation, situated 2,283 metres above sea level, boasts a compact design covering just 1.204 mu (approximately 802 square metres). With a total investment of 10.83 million yuan, the project introduces cutting-edge technology to this remote region.
Key Features and Benefits
The substation’s design incorporates several advanced elements:
- Modular Construction: Built using prefabricated cabin technology, allowing for rapid assembly and deployment.
- High Capacity: Equipped with two 2 MVA main transformers, providing ample power for local needs.
- Advanced Switchgear: Utilises indoor inflatable switchgear, enhancing safety and reliability.
- Automation: Designed as an unattended substation with microcomputer-integrated automation.
These features contribute to numerous advantages:
- Standardised design and modular combination
- Industrial-scale production capabilities
- Reduced environmental impact and resource consumption
- Enhanced technological content and refined construction
Addressing Local Power Needs
The Yangxiang substation primarily aims to resolve power supply issues for 396 households in the village. It effectively eliminates problems associated with long low-voltage lines and inadequate terminal voltage, significantly improving the quality of electricity supply for residential and heating purposes.
A Model for Future Development
This project is part of Jinchang’s “14th Five-Year Plan” (2021-25) for grid development. Its successful implementation demonstrates China’s commitment to modernising its power infrastructure, even in remote areas.
The use of prefabricated, modular units in substation construction represents a shift towards more environmentally friendly and intelligent power systems. This approach allows for faster deployment, easier maintenance, and improved integration of advanced technologies.
Source: China Daily
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