GE's Intelligent Digital Substations improve maintenance scheduling, optimize asset utilization, prevent failures and increase the reliability of electrical grids by reducing power outage probability and duration. New intelligent energy management tools from Current, powered by GE, help managers of commercial and industrial facilities use energy more efficiently.
Digital substations increase efficiency by optimizing transformer capacity through the Smart Cooling System. It also has several operational benefits including:
- Maximizing the reliability of your substation
- Operating assets more efficiently and safely close to the limits of the system
- Optimizing maintenance, repair and retrofit of equipment with minimal outages
- Improving maintenance efficiency by local and remote access Condition Monitoring
- Reducing cost of wiring, replacing cooper wires by Fiber Optic networking
- Reducing Building and secondary P&C Panels footprint
- Unlocking additional power and/or integration of renewables
- Reducing unplanned/planned down time of the substation by increased reliability/ availability
Digital substations are based on the IEC 61850 unifying communication standard for complete information sharing and interoperability, allowing future modernization and the integration of new systems. Digital Control Systems (DCS) are connected with the primary bays via a process bus built on redundant Ethernet architectures. Merging and control units collect and translate measurements, signals and commands (I/O) from the primary equipment into sampled values and GOOSE messages and vice-versa. Digital instrument transformers and DCS-integrated condition monitor for the substation's primary equipment can be added, providing superior safety, reliability and substation situational awareness, locally and remotely.
With the added flexibility provided by digital substations, new optimization functions can be added to unlock efficiency and additional power on primary devices. Also intersubstation wide area controls add resilience and reliability in the operation of the grid.