RESA Power has provided expert power system engineering services like Relay, Protection and Control Schemes to the power systems industry over decades.

To ensure optimal performance of your critical systems and components, it’s imperative to pay attention to the management and maintenance of the related control schemes. With a power systems engineering company like RESA Power, you can rest assured that your equipment will maintain peak performance thanks to our routine maintenance and engineering services.

RESA Power offers these relay, protection, and control scheme services:

  • Relay design
  • Equipment specification
  • Equipment and technology evaluation & analysis
  • Relay settings & engineering

Without quality relay, protection and control schemes, the state of your electrical equipment is at high risk in the case of abnormal or emergency conditions. When a fault in a component or components occurs, these protective relays and schemes help to keep your power systems stable while isolating the necessary components – making reliable relays and schemes imperative to your operation.

Our engineers can choose the appropriate relay and corresponding settings for your system, followed by comprehensive testing of the relays and protection schemes during commissioning. Preventative maintenance of relays and protection schemes, as well as other critical substation components like circuit breakers, current transformers (CTs), and potential transformers (PTs) is necessary to protect your power systems and prevent unexpected downtime.

Learn more about our relay and power system testing services.


Ensure Safety and Compliance with RESA’s Arc Flash Risk Assessment

Arc Flash hazards can cause problems that result in property damage, injury and even loss of life. Our experts can help you provide the Arc Flash workforce safety you want along with the NFPA compliance you need. RESA Power’s power systems engineers assess the electrical equipment and environment in your facility to determine shock and flash protection boundaries, hazard class, PPE requirements, potential incident threat levels, and more, including:

  • Load and coordination study
  • Arc flash and shock hazard analysis
  • Arc flash mitigation study
  • Flash and shock hazard labels applications
  • Updates to one line drawings
  • Electrical awareness training

ARC Flash Hazard Analysis

Our ARC Flash hazard analysis establishes the flash protection boundary around electrical equipment within which a worker exposed to an arcing fault would expect to receive 2nd degree burns if not adequately protected.

  • Determines incident energy level at a specific working distance from equipment as per IEEE 1584 Guide for Performing Arc Flash Hazard Calculations.
  • Selects appropriate personal protective equipment (PPE) to be used while working within the flash protection boundary as per CSA Z462 Workplace Electrical Safety Standard.
  • Creates Arc Flash labels using ETAP

The electrical power engineers at RESA Power are well-versed in electrical codes and requirements as specified by OSHA and the National Electrical Code. Our goal is to bring you into compliance with NFPA 70E 2021 and OSHA Regulations (Standards – 29 CFR) General requirements – 1910.269 utilizing IEEE Standards and NFPA 70 standards. We also provide safety training that improves proficiency and brings your employees up to date on NFPA 70E requirements.

Contact us today to discuss your arc flash risk assessment needs with our power engineering consultants.


RESA Power has more than 40 service locations across the United States and Canada, including a transformer oil testing laboratory and specialty distribution centers to ensure our customers’ critical power systems are safe, reliable, and operating at peak efficiency. Click on the service center nearest to you for more information.