The scale of distribution network development is rapidly expanding, driven by the increasing integration of digital technologies across industries and the shift toward decentralized energy systems. As a result, distribution companies are now dealing with more complex network environments and pressing demands for transformation. To meet these challenges, the deployment of intelligent power distribution equipment has become a top priority, aiming to enhance the level of automation and intelligence in the grid—key steps in achieving digital transformation and long-term growth.
As a global leader in digital transformation within energy efficiency and automation, Schneider Electric has been at the forefront of developing smart distribution networks. The company continuously strives to improve grid efficiency through reliable, safe, and innovative products and solutions. One of its recent breakthroughs, the SmartRingMainUnit solution, offers an advanced online monitoring, protection, control, and digitization system. Designed to meet the growing need for interoperability and efficient operation and maintenance in the digital era, it has set a new benchmark for smart distribution networks.
In line with the "Distribution Network Construction and Transformation Action Plan (2015–2020)," the push for distribution automation and smart metering systems has created a more controllable and adaptable grid. This supports the integration of new energy sources, distributed generation, and electric vehicles, while also aligning with the broader goals of smart grid development and digital integration. According to Schneider Electric, a smart grid is not just a technological upgrade—it's a holistic transformation that integrates various innovative power distribution technologies to enhance security, power quality, asset utilization, self-healing capabilities, and overall operational efficiency.
Distribution equipment serves as a critical link in the intelligent distribution network, acting as a bridge for data collection and transmission. Its stability and reliability directly impact the level of intelligence in future grids. To strengthen this foundation, Schneider Electric, under the guidance of the State Grid Corporation of China’s planning policies, has introduced a next-generation intelligent ring main unit. This solution combines multiple intelligent components and digital functions, enabling visual monitoring, information management, and secure operations. It also supports flexible configuration, easy expansion, reduced outage times, optimized power efficiency, and better management of distributed and intermittent energy sources.
Schneider Electric’s new generation of intelligent ring main units are built on the Easergy T300 platform, integrating digital distribution automation terminals, panoramic online monitoring systems, mobile operation and maintenance tools, and electronic sensors. These units follow a modular and flexible design philosophy, allowing them to be deployed from control rooms to low-voltage stations. Their pre-installed and open solutions support scalable upgrades, making them ideal for medium-voltage distribution management, fault detection, isolation, recovery, and distributed energy integration.
For sectors requiring high reliability and continuous power supply—such as data centers, hospitals, airports, and military facilities—Schneider Electric provides tailored smart solutions. These include real-time monitoring of cabinet parameters and modularized intelligent distribution terminals. With Schneider’s automation and software capabilities, digital operation and maintenance, along with online monitoring, protection, and control, can all be seamlessly implemented. These solutions have already been successfully deployed in certain regions, helping to build high-reliability first-class distribution networks and supporting modular construction needs.
Built on the EcoStruxure Grid architecture, these intelligent ring main units enable seamless connectivity between distribution equipment, providing critical data for public grid monitoring and control. They also support digital operation and maintenance through mobile applications. Looking ahead, Schneider Electric will continue to drive innovation in medium-voltage power distribution, offering cutting-edge products and technologies that empower utilities to achieve greater efficiency and success in the smart grid era.
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