System Protection


TRC has extensive experience providing relay settings, studies and calculations for numerical, static and electromechanical relays, NERC compliance support, outage and fault analysis, as well as a wide variety of substation automation applications.


Our goals are to make the client’s job easier, be an extension of the client’s staff, provide flexibility, and deliver a quality product. We have performed fault coordination studies and provided calculation documents to meet our client’s standard format or provided our own if there is not a standard practice.

Our relay setting and studies work has involved power transmission, generation and distribution equipment from Extra-High Voltage (EHV) to distribution circuits. TRC has specified, set, tested, and commissioned relays on virtually every type of power system equipment, including transmission lines, power transformers, capacitors, substation busses, and generators.

TRC has provided settings for many of the available numerical utility relay manufacturers, including:

  • Schweitzer Engineering Labs (SEL)
  • General Electric (GE)/Multilin
  • Areva
  • Asea Brown Boveri (ABB)
  • Basler Electric
  • Cooper Power Systems
  • Siemens

TRC has also provided settings for many of the electromechanical relay (EM) types still in use. TRC has designed, installed, set/programmed and commissioned substation Automation/Integration platform (Smart Grid) systems using Cybectec, SEL, Orion, Telvent, GE, and Allen Bradley. We will meet our client’s standard or recommend and install a successful design if there is no standard.

Related Resources

Featured image
Regulatory Update

NERC Addresses Single Points of Failure in Protection Systems Among Other FERC Concerns

Posted on Oct 25th, 2018 by Tim Farrar, PE, and Jim Whitaker, PE

Featured image
Regulatory Update

NERC's Generator Relay Loadability Standard is Now in Effect

Posted on Aug 30th, 2018 by Tim Farrar, PE, and Dylan Achey

Featured image
Regulatory Update

Additional Study Requirements Proposed as Part of NERC PRC-027-1 Standard for Protection Systems Coordination

Posted on Jan 30th, 2018 by Dylan Achey, and Tim Farrar, PE

Featured image
Regulatory Update

NERC PRC-012-2 Brings New Protection and Controls Requirements for Remedial Action Schemes

Posted on Oct 17th, 2017 by Tim Farrar, PE, and Jim Whitaker, PE

Featured image
Regulatory Update

NERC Releases “Lessons Learned” Regarding Wind Turbines and System Performance Issues

Posted on Aug 29th, 2017 by Steve Persutti, Tim Farrar, PE, and ​James Whitaker, PE

Show All Resources

Service Contacts