Consulting
Industries
Maintenance & Repair
Fix the Problem Today. Prevent the Next One Tomorrow.
Expert On-Site Repair for Every Transformer Problem
Whether you need a quick repair or a comprehensive field service intervention, SDMyers has the experience, equipment, and expertise to get your transformer back online. Our field service team repairs mechanical faults on all ratings of transformers — and we do it on-site, minimizing downtime and avoiding costly transportation.
What We Repair and Service:
Leak Detection & Repair
We detect, repair, and top off fluid levels on-site for both mineral oil and natural ester systems.
Gauge & Gasket Replacement
Faulty gauges and deteriorating gaskets are caught early and replaced before they become bigger problems.
Bushing & Radiator Assessments
Expert evaluation and repair of two of your transformer's most critical external components.
Electrical Testing
From baseline testing at installation to diagnostic testing throughout your transformer's lifespan.
Internal Repair
Our experienced technicians are equipped for thorough internal inspection and repair.
Your Partner for Planned Transformer Maintenance
Protect your assets, your budget, and your operation.
Reactive maintenance is expensive. A transformer that fails unexpectedly can cost hundreds of thousands of dollars in emergency repairs, lost production, and unplanned downtime — and with average transformer replacement lead times now exceeding 120 weeks, a failed unit can mean years without a reliable spare.
NFPA 70B now requires facilities to maintain a documented Electrical Maintenance Program — and insurance underwriters are increasingly tying coverage terms to compliance. A planned maintenance program with SDMyers not only protects your equipment, it protects your organization.
What a Planned Maintenance Program Includes:
Routine visual inspections and oil sampling.
Electrical testing at recommended intervals.
IR scanning and partial discharge testing.
LTC inspection and service.
Oil processing, moisture reduction, and reinhibiting as needed.
Complete documentation for compliance and insurance purposes.
Be Ready for Every Scenario
With transformer replacement lead times now exceeding 120 weeks, having a tested, deployment-ready spare isn't a luxury — it's a critical part of your reliability strategy. Our in-shop Asset Refurbishment & Replacement service helps you build a bench of tested units, plan for long-term fleet needs, and avoid the crisis of buying in an emergency.
What our Refurbishment & Replacement service includes:
- In-shop partial refurbishment to restore transformers to ANSI, NETA, and IEEE standards
- The TIA Process — Test, Inspect, Advise — to confirm spare readiness
- New unit sourcing, procurement, and deployment support
- Multi-year replacement and budgeting planning
Why Transformer Owners Trust SDMyers
Seasoned Field Expertise
60+ years of experience repairing and maintaining transformers of all ratings and types.
On-Site, Minimal Downtime
We come to you — eliminating costly transportation and keeping your operation running.
Long-Term Partner
We partner with you beyond the repair, helping you prevent the next problem before it starts.
Comprehensive Services
Leak repair, electrical testing, oil processing, moisture reduction, LTC maintenance — all from one team.
Certifications & Standards
We align with industry standards and best practices to deliver accurate testing, sound diagnostics, and safe fieldwork.
Frequently Asked Questions
A repair addresses a specific, existing problem — a leak, a faulty gasket, a failed component. Planned maintenance is a proactive program of regular inspections, testing, and oil analysis designed to catch developing issues before they become repairs. Both are valuable, and SDMyers supports you with either.
A typical visit includes visual inspection, oil sampling and analysis, electrical testing, and documentation of findings and recommendations. Depending on your equipment and operating conditions, it may also include IR scanning, partial discharge testing, and LTC inspection. Every visit produces a complete service report for your maintenance records.
NFPA 70B-2023 shifted from recommended practice to mandatory language, requiring facilities to maintain a documented Electrical Maintenance Program. If your facility is subject to insurance audits, OSHA inspections, or operates under NFPA standards, the answer is likely yes. SDMyers can help you understand your obligations and build a compliant maintenance program.
Many of our services — including oil sampling, IR scanning, partial discharge testing, and certain oil processing services — can be performed on energized equipment. Some services, including most electrical testing, require the transformer to be de-energized. We evaluate each situation and recommend the approach that minimizes disruption to your operation.
The right answer depends on your transformer's age, condition, criticality, and the cost of repair relative to replacement. With transformer lead times now exceeding 120 weeks, replacement planning often needs to start earlier than most operators expect. SDMyers helps you weigh the options and build a strategy that makes sense for your fleet and your budget.
At minimum, you should maintain records of all inspections, oil analysis results, electrical test data, repairs performed, and corrective actions taken. NFPA 70B requires documented maintenance programs, and insurance underwriters increasingly require evidence of regular, documented maintenance. SDMyers provides complete service documentation after every visit.
Talk with a Transformer Expert
Get a free quote or consultation—we’re here to help.
Call (330) 630-7000 or fill out the form to connect with an SDMyers transformer expert today.
