About our company


SynchroGrid is a Texas-based company that offers electric utilities with professional consulting services including transmission line, substation, and system protection design, relay settings development, relay coordination studies, and relay mis-operation analysis. SynchroGrid also helps utilities comply with NERC PRC-001 through PRC-023 system protection standards.

By focusing on system protection, we are able to provide our clients with the level of detail and knowledge necessary to accommodate their needs:
  • Transmission and distribution line design
  • Substation design
  • Relay settings and relay coordination studies
  • Relay mis-operation analysis
  • NERC compliance for PRC-001 – PRC-023 standards

Joe Perez

Founder and Protection Engineer



Joe Perez is a registered professional electrical engineer in the state of Texas. Joe has in-depth experience in power system protection settings and design from the manufacturer and utility perspectives. He has written papers for major relay conferences in the U.S. and many application notes and testing procedures for relay manufacturers and utilities. Joe is the co-creator of a transformer rating software.


Joe Perez established SynchroGrid to provide electric utilities with power system protection applications, analysis, and training. Joe has provided services to relay manufacturers, utilities, and oil and gas companies.
SynchroGrid’s services include, but are not limited to, relay protection scheme design, relay coordination studies, microprocessor relay settings, relay mis-operations analysis, NERC standard compliance for system protection, relay testing, relay standard development, power flow and contingency analysis, and loadability studies of transmission lines and transformers.
Texas A&M University, College Station, TX
Bachelor of Science in Electrical Engineering, 2003


Joe has published several technical, white, and application papers. A few are listed below:
• “Analysis of a Flashover Operation on Two 138kV Transmission Lines,” 2014.
• “Preventing Transformer Mis-Operations during External Faults,” 2014.
• “Three Terminal Application of Distance and Current Differential Relays,” 2013.
• “Loadability Limits of Distance Relays,” 2011.
• “Fundamentals of Transformer Thermal Aspects and Protection,” 2009.
• “A Guide to Digital Fault Analysis,” 2009.

Memberships and Committees

• Member of the IEEE PSRC Power System Relaying Committee: IEEE Reclosing Standard.
• Member of IEEE.

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