Distribution Automation System
A Distribution Automation System combines intelligent field devices, communications, and control software to monitor and operate medium-voltage networks automatically. It enables functions such as self-healing, FLISR (fault location, isolation, and service restoration), capacitor control, and remote switching that reduce outage duration and improve hosting capacity for DERs.
Automation relies on sensors embedded in reclosers, voltage regulators, and switchgear that stream data to advanced distribution management systems. Algorithms detect abnormalities, isolate faults, and reroute power within seconds, often without operator intervention. Integration with DERMS ensures distributed assets are considered when reconfiguring circuits.
Utilities invest in distribution automation to meet resilience mandates, accommodate electrification, and support non-wires alternatives. Automation data also feeds into predictive maintenance programs and provides regulators with evidence that grid modernization funds deliver measurable reliability metrics.
Vendors offer modular automation packages that can be staged feeder by feeder. Investors evaluate automation maturity when assessing utility readiness to integrate high volumes of DERs and to host VPP programs.
Technical Details
- •Includes intelligent electronic devices, communications networks, and ADMS software
- •Supports FLISR, voltage regulation, and remote switching
- •Integrates with DERMS and outage management systems
- •Requires cybersecurity hardening for field devices and control centers
- •Improves SAIDI/SAIFI metrics and feeder hosting capacity
Why It Matters
Distribution automation dictates how fast utilities can restore service and integrate flexible loads. Tera maps automation investments and modernization grants so DER developers and equipment suppliers can target utilities ready for advanced control partnerships.
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