website masthead

From the ELSCO plant floor

Old black vintage electrical transformers in a factory

How Old (Reliable) is Your Transformer?

January 13, 2022

Your transformer may seem like an inert apparatus tucked away in a cabinet, but when energized it is a vibrant, living thing, transforming and feeding electrical power at 60 Hertz to your facility.  In addition to metal windings and core it contains organic materials in the form of insulation, and like all living things, it […]

Read More
reliable, quality and durable

Your ELSCO Transformer is an Investment in Quality

December 28, 2021

Replacing a failed transformer comes as an unwelcome surprise with an unanticipated and unavoidable cash outlay.   Facilities managers are immediately faced with two urgent questions: “How soon can we get power back?” and “How much is this going to cost?”   The answers will depend on some key decisions made in replacing the transformer, but the […]

Read More
Dry Type Transformer failure.

The Cost of Transformer Failure in Manufacturing

September 14, 2021

Recent surveys have reported the cost of a single hour of manufacturing downtime to be anywhere between $500,000 and $5 million, The survey participants were very large, high-volume manufacturers in automated industries such as automotive, steel, chemical and pharmaceuticals.  The estimates of hourly downtime costs were reported by respondents to the surveys without definitions, supporting […]

Read More
Retrofit Dry Type Transformer

Save Time and Money with ELSCO Custom Bus Work

September 13, 2021

When you purchase a replacement or retrofit transformer, most likely its high-voltage and low-voltage connections will not line up perfectly with your existing infrastructure due to differences in transformer models, ratings or designs.  Low-voltage bus bar connections have to line up perfectly parallel, with matching bolt holes, and be bolted together without distorting forces to […]

Read More
Round Coil vs. Rectangular Coil

Round Coil vs. Rectangular Coil for Transformers

August 14, 2020

Substation transformers feature either a round or rectangular core and coil assembly. A transformer’s iron core and windings are designed to carry magnetic flux through the transformer, and the core is typically constructed in a round, rectangular or oblong shape — although oblong cores are much less common in dry tape transformers. Round and rectangular […]

Read More
Disc Wound vs Layer Wound Transformer

Disc Wound vs. Layer Wound Transformer

August 14, 2020

One of the most common questions when selecting a medium voltage transformer is whether to choose a disc wound or a layer wound option. Understanding the difference between layer and disc wound transformers is crucial for optimizing your medium voltage applications, as each type features unique benefits and drawbacks. Call Us Today Differences of Disc […]

Read More
coils of copper sheets

Copper vs. Aluminum Dry Type Transformer Windings

August 11, 2020

Dry type transformers typically feature either copper or aluminum windings, also known as coils. Transformer windings refer to the coils within the transformer that draw and distribute power inside the unit. There are typically two windings in a dry type transformer — one that draws power from the source and another that transfers that power […]

Read More
Guide to Oil-Filled Transformer Maintenance

Guide to Oil-Filled Transformer Maintenance

August 6, 2020

Jump To: Routine Maintenance for Oil-Filled Transformers Daily Maintenance Weekly & Monthly Maintenance Yearly Maintenance Oil-Filled Transformer Maintenance Checklist Potential Problems with Oil-Filled Transformers The Benefits of Preventive Maintenance for Oil-Filled Transformers Transformer Inspections Regular maintenance is a major part of keeping your oil-filled transformers in good working condition. Without scheduled upkeep, your transformers will […]

Read More
Guide to Transformer KVA ratings - How to Determine what Size Transformer You Need.

Guide to Transformer kVA Ratings — How to Determine What Size Transformer You Need

July 31, 2020

Jump To: How to Determine kVA Size Calculating kVA Size Start Factor Specialty Considerations Standard Transformer Sizes How to Determine Load Voltage How to Determine Secondary Voltage How to Determine Primary Voltage Single-Phase kVA Ratings Three-Phase kVA Ratings In many industries, including health care, manufacturing, electrical contracting, higher education and corrections, reliable, high-quality transformers are […]

Read More