Last July, a utility in the U.S. Southwest called us about a 500 kVA pad-mounted transformer that kept tripping its winding temperature relay. The unit was four years old, load was below nameplate, and their local contractor was ready to replace it. ...
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Last spring, a plating facility in Monterrey sent us an RFQ for a '500 kVA rectifier transformer' and nothing else. Two weeks later their utility engineer was on the phone: the 6-pulse rectifier on their new line was pushing current total harmonic di...
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In June 2026, the U.S. Department of Energy opened an information-gathering request covering distribution transformers and electrical core steel, after a presidential determination found that grid infrastructure supply chains are essential to nationa...
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If your project requires dry-type transformer capable of performing under conditions of your site, it's not just matter of comparing nameplate ratings. Every technical parameter is of importance on mission critical infrastructure, such as data center...
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How to Size a Transformer for a Commercial Building Project The panel schedule lands on your desk Monday morning, and the contractor wants the transformer order placed by Friday. You have 37 loads to reconcile, a mechanical room two feet short...
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Transformer for EV Charging Station Networks: Sizing and Procurement When the Grid Lags Behind The charging piles arrived in the container three weeks ago. The site permit cleared last Friday. The utility interconnection study is "in progress,...
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Pad Mounted Transformer Installation in North America: What We Tell Every Contractor Before the Truck Arrives Three weeks ago a contractor in Oklahoma called us about a 2,500 kVA unit we shipped in May. The transformer had been sitting on its pad fo...
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Transformer Lead Times in 2026: What’s Driving the Global Shortage and How to Plan Procurement In 2023, a standard 1 MVA pad-mounted unit quoted at eight weeks. By mid-2026, buyers in the U.S. and Europe are hearing twelve to eighteen months fo...
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Harmonic Distortion in Data Center Power Systems: Why K-Factor Transformers Matter When a data center in Northern Virginia added a rack row of GPU servers last year, the electrical designer’s first concern was not capacity — it was harmon...
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Choosing the Right Transformer for a Data Center: Power Density & Efficiency AI workloads have pushed rack power from 10 kW to 50 kW and beyond in less than five years. When a single rack can draw more current than a small apartment building, the da...
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Dry Type Transformer for Data Center: A Selection Guide on Power Density and Efficiency A hyperscaler's electrical consultant in Virginia called us last spring with a problem that would have been unheard of five years ago: their newest building was s...
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Custom Transformer vs Off-the-Shelf: When Does Customization Pay Off? A utility engineer in Texas once told us his procurement team saved US$4,000 by picking an off-the-shelf transformer 500 kVA pad-mounted unit instead of a custom build. The re...
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