Protective Relaying

One of our core strengths is our ability to design, specify, integrate, set, and commission protection systems for distribution, transmission, generation, and station equipment ranging from 600V to 500kV. We also perform troubleshooting and analyses of electromechanical, solid-state, and microprocessor-based relay systems. We use Aspen OneLiner, SKM, and similar tools here.

Recent Protective Relaying Projects

  • Xcel Energy Substation SCADA

Xcel Energy Substation SCADA

Exponential Engineering in partnership with Emerson Reliability Services is in an ongoing relationship to expand Xcel Energy Substation capacity. EEC provides the SCADA configuration upgrades including programming and commissioning of the status and control […]

Xcel Energy – Sky Ranch Substation SCADA Upgrade

EEC provided configuration and installation support to Xcel Energy for the Sky Ranch SCADA Upgrade using Novatech’s OrionLX RTU. EEC worked with contractors to install the equipment then modified the hardware configuration, the RTU […]

  • NRG Energy—Necker Island, BVI—Micro-Grid Project

NRG Energy—Necker Island, BVI—Micro-Grid Project

Designed the electrical system for a renewable energy distributive generation style project on an island in the British Virgin Islands. Existing power was generated by diesel generators and the goal of the project is […]

Tallgrass Energy Partners, LLC

Designed and provided construction oversight for nine small substations providing power to pumping stations on an oil pipeline. The design included motor starting studies, protective device coordination and specification and ordering the mais substation […]

  • XCEL Energy Fort Saint Vrain Relay Upgrade

XCEL Energy Fort Saint Vrain Relay Upgrade

Design of generator, transformer, bus and 5kV protection for three 206MVA gas turbine generators (Units 2, 3, 4) at Fort Saint Vrain Station in North Central Colorado; design included one-lines, AC three-lines, DC schematics […]

  • First Energy Corporation Seneca and Yards Creek

First Energy Corporation Seneca and Yards Creek

For each project, we were asked to be involved as a third party to review relay settings proposed by First Energy’s design engineering firm. We provided relay settings calculations in Mathcad, which included our […]