In the early hours of the morning on a warm night in June, a group of engineers gathered in Georgia’s National Control Center. With quiet efficiency, they prepared to execute one of the most important tests the utility would ever perform, cutting the power to one of their most critical 500 kV transmission lines.

Innovation, Persistence, and a New Beginning

NamPower implements a state of the art solution incorporating advanced power protection, automation and control, all based on Ethernet communications using IEC 61850.

SEL Brings NamPower Into 21st Century

This paper explains why new design possibilities provided by modern IEDs make it difficult to describe protection and control system functionality using traditional schematic diagrams. The paper describes one utility's experience as they worked to modernize their logic and documentation, and it discusses the new guidelines they developed and adopted for logic diagram creation.

Beyond Protection and Control Schematic and Logic Diagrams

Bay Control

Integrated bay control systems combine complete bay control with high-speed breaker protection, allowing you to deploy a full substation protection, control, and monitoring solution that is flexible for your application.

Bay Control

Automation Platforms

Protective Relays