HV Substation Technician - Field & Testing Expert

NovaSource Power Services; Houston (TX); On-site; USD 75,000 - 110,000; Full time

Job summary

NovaSource Power Services is seeking a Substation Services Technician to perform testing, diagnostics, maintenance, installation, and commissioning support for medium- and high-voltage equipment across utility-scale renewable facilities. The role includes travel across North America (75–80%).

The ideal candidate has substations experience, transformer diagnostics, and familiarity with Doble testing equipment and protective relays. OSHA NFPA 70E awareness is required.

Qualifications

• High School diploma or equivalent.
• 5+ years of medium- and high-voltage electrical experience.
• 3+ years performing substation, utility, industrial, or renewable energy maintenance.
• 2+ years experience testing and maintaining transformers, disconnect switches, and substation equipment.
• Experience interpreting electrical test results and equipment condition.

Responsibilities

• Electrical Testing & Diagnostics including TTR, SFRA, insulation, and power factor testing.
• Preventive & Corrective maintenance on transformers, disconnects, and MV cable systems.
• Coordinate field operations, subcontractors, and vendors.
• Develop detailed field reports; document test results and maintenance findings.
• Provide technical recommendations for repair or replacement; ensure safety compliance.

Skills

Electrical troubleshooting

Transformer diagnostics

Technical report writing

Root cause analysis

Reading electrical drawings

Customer communication

Team leadership

Project coordination

Computer proficiency (MS Office & CMMS

Education

Journeyman Electrician certification or Electrical Technician certification

High School diploma or equivalent

Military electrical training

NETA certification

Tools

Doble M4100 / M7100

Megger Insulation Resistance Testers

Transformer Turns Ratio Test Equipment

Digital DLRO / Ductor

Process Calibrators

Job description

NovaSource Power Services is seeking a Substation Services Technician to perform testing, diagnostics, maintenance, installation, and commissioning support for medium- and high-voltage equipment across utility-scale renewable facilities. The role includes travel across North America (75–80%).

The ideal candidate has substations experience, transformer diagnostics, and familiarity with Doble testing equipment and protective relays. OSHA NFPA 70E awareness is required.