As one of North America’s largest manufacturers of dry type transformers, Hammond builds units for various industrial and commercial applications. While many of Hammond’s product lines are known for reliability, they eventually reach conditions where replacement is necessary. At ELSCO Transformers, we offer cost-effective retrofit and replacement solutions that can integrate seamlessly with your existing setup.
Reasons Why You May Need to Replace Your Hammond Dry Type Transformer
Hammond transformers — especially older Sentinel G models — often have problems with thermal regulation issues as they age. When the ventilation pathways become blocked by dust accumulation or insulation breakdown, the correct heat dissipation becomes challenging.
Many Hammond units installed before the implementation of today’s harmonic standards struggle to operate effectively in modern power environments. Non-linear loads from variable frequency drives and digital equipment generate harmonics that standard Hammond transformers weren’t designed to handle. Excessive vibration and intense buzzing during operation might indicate saturation and the need for replacement.
Other signs your Hammond transformer might need to be replaced range from higher-than-normal operating temperatures and visible burn marks on the outside to the actual age of the unit itself.
Why Choose an ELSCO Retrofit Unit for a Hammond Transformer Replacement?
Because many transformer designs have changed over the last 20 or 30 years, choosing a new Hammond unit may require making changes to your facility, particularly with the system’s wiring or enclosure. At ELSCO Transformers, we believe that replacing an existing unit shouldn’t entail these extra costs. If our medium voltage in-stock units don’t match your specifications, we can alter the unit and ship it to you for fast installation.
For Hammond’s Sentinel series, our engineering team has developed specialized connectors and adapters that eliminate reconfiguring existing cables. Our retrofits also address technological limitations of aging Hammond transformers with advanced thermal management systems that outperform the standard designs of Hammond transformers. The result is a replacement with a longer service life, higher reliability and increased efficiency.
Hammond Transformer Replacements and Retrofits From ELSCO Transformers
Each Hammond retrofit begins with the documentation of your existing unit. Our process includes electrical parameter analysis, dimensional mapping for seamless integration and evaluation of your facility’s environmental factors. This comprehensive approach results in a replacement that installs in significantly less time than an off-the-shelf unit by a different manufacturer.
More importantly, you get a cost-effective, high-efficiency solution tailored to your operational needs.
Benefits of Selecting ELSCO Transformers
Choosing us for transformer retrofits and replacements offers many benefits, including:
- Technical expertise: Our engineers are familiar with transformer specs from Hammond and other well-known manufacturers, allowing us to develop replacements without guesswork.
- Superior materials: Thanks to DuPont Nomex insulation and other premium-grade materials, our transformers operate smoothly, quietly and efficiently.
- Longevity: Our medium-voltage, dry type transformers have service lives beyond 30 years due to their unmatched build quality and material strength.
- Zero failure rate: ELSCO has not had a transformer failure due to design, workmanship or materials since we began manufacturing dry type units in 1988.
Contact Us Today to Get Started
If you need to replace your existing Hammond unit with a cost-effective, easy-to-install solution, the professionals at ELSCO Transformers can guide you. We also offer other transformer solutions, including custom bus work, emergency replacements, repairs and custom-built units. Contact us online or call 800-232-9002 today for a quote or additional information.