Point of Common Coupling (PCC) Control Systems

Solutions for Islanding and Grid-Connected Operation of a Microgrid

Automatic separation systems detect an unstable or failing macrogrid and proactively island your microgrid power system to avoid blackouts. These systems identify and isolate dangerous open-circuit, shorted-circuit, and back-feed conditions. A seamless transition to island mode operation is possible when this system is used in conjunction with SEL microgrid control systems. Two variations of these systems are available: simplified controls using only SEL protective relays or, alternatively, pre-engineered library modules for the SEL Real-Time Automation Controller (RTAC) family.

The library modules for the RTAC family offer standardized interconnection controls for renewable generation sources. The library contains pre-engineered function blocks for controlling the PCC between the utility grid and a power generation source. It is designed to simplify interconnection control and solve common interconnection issues.

Key Offerings

  • IEEE 1547 voltage and frequency ride-through compliance
  • Integration with protection relays
  • Automated generator and inverter interfaces
  • Proactive islanding
  • Dispatch controls
  • Demand response
  • Fault circuit and open-circuit isolation
  • RTAC libraries

Questions? Contact Us!

If you have any questions about SEL products, services, solutions, or support, please contact us. Our service and support professionals are ready to provide the answers you need.

Unbeatable Support

SEL support teams are stationed in regional offices around the world and staffed with application engineers who are experts in our products and in power system applications.

Technical support for SEL-manufactured devices is always free. No matter how often you need to call or how long your SEL products have been in service, you’ll reach an SEL expert who can provide the service and support you need.

Our cybersecurity team is always ready with the information and resources needed to keep your OT networks and critical systems secure and working effectively. Cyber services support contracts can include incident response, audits, system hardening, and more, depending on your anticipated needs.

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