Relay Field Engineer — Southeast

Ziggurat Automation Inc.; Charlotte (NC); On-site; USD 80,000 - 100,000; Full time

Job summary

Ziggurat Automation Inc. is seeking an experienced ENG III to conduct relay testing in Charlotte, NC. The role involves performing secondary injection tests and verification against standards and specifications.

Emphasis on safety and compliance is critical, alongside extensive documentation during the testing phases. Candidates should expect travel of 40–60% in the Southeast region.

Additional experience with SEL and Doble testing tools is preferred.

Qualifications

• 5+ years relay testing experience on medium-voltage power systems.
• Experience with secondary injection testing and compliance with NFPA 70E.
• Proficient in test report documentation per NETA/ANSI standards.

Responsibilities

• Perform secondary injection testing for SEL protection relays.
• Execute Factory Acceptance Tests (FAT) and Site Acceptance Tests (SAT).
• Produce detailed test reports and ensure NFPA 70E compliance during energized testing.

Skills

Relay testing

Secondary injection testing

Testing report documentation

NFPA 70E compliance

Tools

Omicron CMC

SEL

Doble F6150

AcSELerator QuickSet

Job description

ZA-33009 - Charlotte, NC (Field)

Hiring ENG III

What You Own

• Secondary injection testing for SEL protection relays — 50/51/50N/51N elements, trip timing verification
• As-found/as-left settings documentation for relay replacements and retrofits
• CT/PT ratio verification and wiring continuity checks from relay terminals to switchgear
• GOOSE subscription verification post-installation — publish/subscribe validation on PRP networks
• Trip timing measurement against coordination study curves — confirming relay behavior matches design intent
• FAT bench testing: DTSC-200 ATS controllers, relay parameter verification, I/O wiring validation

Vendor Platforms

• SEL
• Woodward
• Omicron
• Doble

Software Tools

• AcSELerator QuickSet Wireshark

Protocols

• IEC 61850 GOOSE

Standards

• IEC 62439-3 (PRP/HSR)
• NFPA 70E
• IEEE 1584

Test Phases

• Secondary injection testing
• Factory Acceptance Test (FAT)
• Site Acceptance Test (SAT)
• Functional performance testing

What Success Looks Like

First 90 Days

• Performed secondary injection testing on SEL-751 or SEL-700G relays on an active project site
• Produced test reports in NETA/ANSI format with as-found/as-left settings comparison
• Demonstrated NFPA 70E compliance practices during energized MV switchgear testing

First 180 Days

• Independently executing relay-level SAT on project sites — secondary injection, wiring verification, trip timing
• Bench FAT testing for controllers (DTSC-200, easYgen 3400) with parameter and I/O verification
• ZSI GOOSE functional testing: blocking signal verification and selective trip timing across PRP networks

Required Background

• 5+ years relay testing and electrical testing on medium-voltage power systems
• Secondary injection testing with Omicron CMC or Doble F6150 (or equivalent) — trip timing, coordination validation
• Test report documentation per NETA/ANSI standards — as-found/as-left format
• Wiring verification: CT/PT ratio checks, continuity testing, relay-to-switchgear terminal verification
• NFPA 70E compliance: working on or near energized MV switchgear with arc-flash PPE

Preferred Background

• NETA Level II or III certification
• SEL relay testing (AcSELerator QuickSet for settings verification)
• IEC 61850 GOOSE verification — Wireshark capture, publish/subscribe validation
• PRP network failover testing
• Woodward DTSC-200 or easYgen 3400 bench FAT experience

What to Expect in the Field

Travel 40–60% during testing campaigns. Southeast region primarily (VA, NC, GA, TN, FL).

Site Hours: Site hours during testing: early starts for LOTO, occasional weekend milestones. Off-hours for energized testing windows.

Customer-Facing Interface: With prime contractor commissioning leads during witnessed testing; site safety coordination.

Documentation Heavy — test reports, as-found/as-left records, wiring verification checklists, trip timing data sheets.

Field Safety: NFPA 70E compliance mandatory — arc‑flash PPE (Cat 2+ for MV), approach boundaries, LOTO for each relay position, daily safety briefings.