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From the ELSCO plant floor

The Different Parts of a Dry Type Transformer

June 4, 2024

Dry type transformers enable energy transfer through electromagnetic induction. They employ solid insulation and cooling mechanisms like natural convection or forced air. There are a few fundamental components to consider, from magnetic cores to insulation to cooling systems. Each piece works seamlessly together to enhance efficiency, safety and reliability in various applications. Understanding these elements […]

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Standard kVA Sizes for Three-Phase Medium Voltage Transformers

Standard kVA Sizes for Three-Phase Medium Voltage Transformers

May 29, 2024

Electrical engineers constantly deal with various electrical systems and equipment, including medium voltage dry type transformers. These transformers come in a range of standard kilovolt-amp (kVA) sizes to ensure different systems receive efficient and reliable power distribution. By knowing the standard kVA sizes for three-phase medium voltage transformers, you can make informed decisions when specifying, installing or maintaining […]

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Dissolved Gas Analysis Limits

Dissolved Gas Analysis Limits

May 16, 2024

Awareness of dissolved gas analysis limits lets you detect minor faults and conditions that can lead to transformer failure. DGAs reduce risk to the unit, system and the personnel who monitor the transformer. You must do a DGA for transformers after high voltage and temperature rise tests, during a commissioning period, before a lapsed warranty […]

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Round Coil vs. Rectangular Coil

Round Coil vs. Rectangular Coil for Transformers

May 1, 2024

Substation transformers use round, rectangular or, less commonly, oblong core and coil assemblies. Coils facilitate the transformer’s magnetic flux flow. Coils and transformers work together to optimize performance based on design and application requirements. The transformer’s core shape determines the coil type. In other words, round iron cores must use round coils and so on. But […]

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How Companies Can Save Money on Their Monthly Electric Bills

How Companies Can Save Money on Their Monthly Electric Bills

April 15, 2024

Energy costs can be a company’s most significant and unpredictable expense, so energy consumption control is vital for maintaining or lessening monthly electric bills. A comprehensive energy management plan and quality energy-saving equipment are critical elements when trying to reduce consumption and save money on energy. Learn how to start lowering your company’s electrical bill […]

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How to Select the Ideal Transformer for Your Company

How to Select the Ideal Transformer for Your Company

April 5, 2024

Many businesses only function efficiently because of transformers. This critical equipment performs a fundamental function in many industries, transferring power and controlling voltages to ensure safe and productive workflows. If your business relies on electricity, you know how damaging a blown transformer can be to your operations. Choosing a transformer can be tricky, but with […]

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DOE Efficiency Stands for Transformers.

DOE Efficiency Standards for Transformers

March 27, 2024

Jump To: What Are the DOE Efficiency Standards? Benefits of Efficiency Standards to the Customer and the Industry How to Comply With Efficiency Standards Impacts of DOE Regulations and Compliant Transformers Transformers Exempt From DOE Efficiency Standards The Future of DOE Efficiency Standards More than 40% of the energy used in the United States is consumed by […]

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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

March 14, 2024

In many industries, including health care, manufacturing, electrical contracting, higher education and corrections, reliable, high-quality transformers are essential for keeping operations running efficiently. Large facilities and industrial processes require substantial amounts of power, and they need dependable transformers to convert the energy coming from the power plant into a form they can use for their […]

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Guide to Oil-Filled Transformer Maintenance

Guide to Oil-Filled Transformer Maintenance

January 19, 2024

Regular maintenance is a major part of keeping your oil-filled transformers in good working condition. Without scheduled upkeep, your transformers will be more likely to experience issues that can snowball into larger operational problems, like system failure. You don’t have to rely on reactive or condition-based maintenance when taking care of your machinery. Staying ahead of any and […]

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DOE Efficiency Standards for Dry Type Transformer

December 26, 2023

Transformer Efficiency The power efficiency of a transformer is defined as1 Efficiency = Power Used / Power Supplied = L x (KVA rating) x PF / L x (KVA rating) x PF + total losses where L is the fraction of rated load, PF is the power factor, and total losses include no-load and load […]

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