banner5JBT Relay specializes in numerous power system services varying from AC acceptance testing, temporary circuit modification, troubleshooting, print modification to equipment testing and installation. We offer the capability to do all work from 120 Volts up to 500,00 Volts on any power system varying from substations, plants, and any other type of power system.

The employees that make up the JBT electric relay team are the top technicians and engineers with respect to their given fields. Regardless of the task, our employees will do whatever it takes to complete a job in a professional manner while always maintaining a safe workplace.

Services Offered


  • AC In-Service Checks
  • DC Operational Checks
  • Function Testing Relay Schemes
  • Wire Terminations
  • AC Voltage Checks
  • Bus Inspection & Testing
  • Cable Pulling
  • Cable Testing / Fault Location
  • Circuit Breaker Services (480 V – 500 kV)
  • Substation Services
  • Current / Potential Transformer Services
  • DC Operational Checkouts
  • Digital Fault Recorder Services
  • Electromagnetic Relay Testing
  • Generator Testing
  • Grounding System Survey
  • HV, MV, and LV Switchgear Services
  • Hi-pot Testing
  • Motor Testing
  • Panel Installations
  • Panel Removals
  • Power System Metering
  • Power Transformer Services
  • Power Line Carrier Services
  • Protective Relay Calibration
  • SCADA Services
  • Station Battery Services

Other Services:

  • Print Reviews/Corrections
  • Power System Consulting
  • Design Review
  • Protective Device Coordination
  • Turnkey Field Engineering Projects
We are available 24/7 for your power system service requirements.