Protection and Control

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REI Utility Services provides comprehensive Protection & Control (P&C) engineering and design solutions to ensure the safe, reliable, and compliant operation of electric power systems. Our professionals deliver expertise across generation, substation, transmission, and distribution facilities, from system studies to detailed design and commissioning.

Protective Relaying & Studies

  • We perform advanced studies and analysis to optimize protection system performance and meet regulatory requirements.
  • Load Flow Studies – Evaluate system loading and performance under normal and contingency conditions.
  • Short-Circuit & Equipment Evaluation – Determine fault levels and verify equipment interrupting ratings.
  • Relay Coordination Studies – Ensure proper operation and selectivity between protective devices.
  • Motor Starting Studies – Assess voltage drop and system stability during motor starts.
  • Arc-Flash Hazard Studies – Calculate incident energy levels and recommend mitigation strategies.
  • Protective Relay Settings – Microprocessor-based relaying (SEL, GE, Beckwith, etc.), electromechanical relaying, digital secondary solutions (IEC 61850, SEL TiDL) .
  • Protection Scheme Design – Generator auto-synchronism schemes, multi-stage capacitor bank switching schemes, automatic transfer schemes, sectionalizing schemes.
  • Relay Database Management – Maintain organized, accurate relay records.
  • NERC Compliance Studies – PRC-001, PRC-002, PRC-004, PRC-005, PRC-006, PRC-008, PRC-011, PRC-012, PRC-016, PRC-017, PRC-019, PRC-023, PRC-024, PRC-025, PRC-026, PRC-027.
  • Mis-Operation Event Analysis – Perform root cause investigations, analyze relay event files, replay events in lab and field, and commission updated relay settings.

Protection & Control (P&C) Design

  • We deliver complete design packages for new, upgraded, and retrofit protection systems.
  • One-Line Diagrams – Development of relaying one-line diagrams for clear system representation.
  • Panel Layouts & Three-Line Diagrams – Detailed layouts to support accurate construction and maintenance.
  • AC/DC Schematics & Wiring Diagrams – Precise control, protection, and wiring documentation.
  • Cable Schedules – Comprehensive schedules for control and communication cabling.
  • Retrofit & Upgrade Design – Modernization of existing protection systems to meet current standards.

Get In Touch With REI

Give Us a Call

Office Location:

710 Lucas Dr.
Athens, TX 75751

Hours of Operation:

Monday – Thursday: 8:00 AM – 5:00 PM
Friday: 8:00 AM – 12:00 PM
Saturday – Sunday: Closed

Phone:

903-675-2227

Email:

Reiadmin@reiutilityservices.com