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Excel Engineering

Powertrain testing and emissions regulation compliance

Relay Technician

Power Systems EngineeringConfirmed live in the last 24 hours
Full-timeDenver, CO, USAIn-person

About the Job

Requirements

  • The role requires 10 or more years of relay technician experience.
  • The candidate must have a strong understanding of protection relays and high-voltage protection.
  • The candidate must have working knowledge of high-voltage potential transformers, current transformers, high-voltage breakers, and Supervisory Control and Data Acquisition systems.
  • The candidate must be skilled in troubleshooting and repairing substation relaying and control equipment.
  • The candidate must be proficient in Microsoft Office, including Word, Excel, and Outlook.
  • The candidate must have an Associate’s degree in Electrical Engineering Technology or a related field.
  • The candidate must be able to read manufacturer manuals and prepare commissioning checklists.
  • The candidate must be able to develop commissioning plans and outage sequencing schedules.
  • The candidate must be able to evaluate relay protection schemes and perform design changes.
  • The candidate must be able to program, test, and validate relay settings and control circuits.
  • The candidate must be able to perform fault testing and reconcile results.
  • The candidate must be able to safely energize equipment and direct field operations at substations.
  • The candidate must be able to conduct current and potential transformer testing.
  • The candidate must be able to interpret schematics and verify system inputs and outputs.
  • The candidate must be familiar with symmetrical components, phasors, and zones of protection.
  • The candidate must have experience with digital fault recorders and Supervisory Control and Data Acquisition systems.
  • The candidate must have knowledge of remote terminal unit, programmable logic controller, and substation integration hardware and software.
  • The candidate must be proficient in DNP3, MODBUS, RS-232/485, and Ethernet communication protocols.
  • The candidate must be capable of verifying Energy Management System points with utility operating personnel.
  • The candidate must be familiar with metering quantities, transducers, and control circuit lamping tests.
  • The candidate must be trainable in various remote terminal unit software packages.

Responsibilities

  • Lead substation testing and inspection projects.
  • Analyze wiring diagrams, schematics, and engineering documents.
  • Serve as an on-site subject matter expert.
  • Oversee quality and safety standards during testing.
  • Detect and troubleshoot issues at substation sites.

About the Company

Excel Engineering

Powertrain testing and emissions regulation compliance

Excel Engineering provides testing services for all powertrain types, including ICE, EV, HEV, hydrogen, and battery systems. Its facilities feature over 40 engine testing cells across three locations, testing up to 5500 HP, and chassis dynos, supporting emissions testing, regulatory compliance, and development work. It also offers battery performance, environmental, and abuse testing, as well as service accumulation and DV/PV testing for OEMs during ramp-ups. The company differentiates itself with a broad, specialized suite of powertrain test capabilities—covering emissions, HV battery systems, e-motors, power transmission, and certification testing for ATV, SXS, motorcycles, and other vehicles under 40 CFR standards—combined with custom test development in collaboration with customers. Its goal is to deliver high-quality, cost-effective testing solutions that accelerate product development and ensure regulatory compliance across traditional and emerging powertrain technologies.

Company size
51-200
Company stage
Not listed
Total funding
Not listed
Headquarters
Des Moines, IA
Founded
2002

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