Transformer Technician

Overview

Company Overview:

Shermco is North America’s largest and fastest-growing electrical testing organization accredited by the InterNational Electrical Testing Association across the U.S. and Canada. Trusted since 1974, Shermco specialize in electrical testing, maintenance, repair, engineering solutions, and NETA‑accredited field services. Our teams support a wide range of industries — from data centers and utilities to industrial manufacturing, oil and gas, chemicals, renewables. We provide a full suite of services including field services, power systems engineering, control systems integration, breaker and switchgear refurbishment, motor and generator repair.

Position Summary:

The HV Transformer Technician is responsible for performing field based work (70% travel) on power transformers and related high-voltage equipment. This role includes full transformer dress‑out, assembly, testing support, oil processing, vacuum filling, and maintenance activities. The technician ensures all work is completed safely, efficiently, and in compliance with industry standards and company procedures.

Responsibilities

Transformer Assembly & Dress‑Out

• Perform complete dress‑out of power transformers, including installation of radiators, bushings, fans, pumps, wiring, conservators, gauges, and auxiliary equipment.
• Assemble and torque all bolted connections per OEM specifications.
• Install gaskets, seals, and accessory components to ensure leak‑free operation.
• Execute mechanical and electrical assembly tasks during transformer installation or refurbishment.
• Assist with removal/dress‑down during transformer decommissioning.

Oil Processing & Fluid Management

• Operate transformer oil processing equipment, including vacuum dehydrators, filtration systems, and degasification units.
• Perform vacuum pulls, leak checks, and vacuum hold tests on transformer tanks and components.
• Conduct hot oil circulation, fill‑ups, and temperature-controlled oil handling.
• Take fluid samples and perform or assist with dielectric, moisture, and DGA testing.
• Maintain oil cleanliness standards (e.g., moisture ppm, particulate levels) according to OEM and industry requirements.

Testing & Commissioning Support

• Support field test teams with electrical testing preparation (e.g. Power Factor, IR, TTR, winding resistance, SFRA).
• Assist in monitoring transformer parameters during energization and commissioning.
• Use instrumentation and hand tools to support diagnostic and maintenance tasks.

Safety & Compliance

• Follow all safety protocols, including lockout/tagout, PPE, and rigging procedures.
• Maintain compliance with OSHA, NFPA 70E, NETA, and company safety standards.
• Participate in job hazard analyses, tailgate meetings, and safety audits.
• Ensure all documentation, field reports, and work orders are completed accurately.

Equipment & Tool Management

• Maintain oil rigs, pumps, hoses, gauges, and dress‑out tools in proper working condition.
• Perform basic troubleshooting and maintenance on processing and auxiliary equipment.
• Assist with mobilization and demobilization of tools, trailers, and field equipment.

Qualifications

Required:

• 6+ years of experience working with power transformers or high‑voltage electrical equipment
• Knowledge of transformer construction, components, and field service processes
• Experience with oil processing equipment (vacuum rigs, filters, pumps)
• Ability to read and interpret OEM drawings, schematics, and wiring diagrams
• Strong mechanical aptitude and understanding of electrical safety
• Valid driver’s license and willingness to travel
• CDL and experience operating forklifts/rigging equipment

Preferred:

• Experience with transformer testing or utility/substation environments
• NETA, OSHA 30, or transformer OEM training certifications

Physical Requirements:

• Ability to lift up to 50 lbs.
• Comfortable working outdoors at substations, industrial sites, and power plants
• Ability to climb ladders, work at heights, and stand for extended periods
• Willingness to work overtime, weekends, and out‑of‑town assignments as required

Core Competencies:

• Strong attention to detail
• Safety-first mindset
• Mechanical and electrical troubleshooting
• Effective communication and teamwork
• Professionalism with customers and crew members

EQUAL OPPORTUNITY EMPLOYER | DRUG-FREE WORKPLACE

Shermco is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status.  Shermco is a drug-free workplace.

NO AGENCIES PLEASE

Pay Range