XIAOWEI unveils high-efficiency transformers at IEEE T&D Expo

Jiangsu Xiaowei Electric Co., Ltd. showcased a new line of distribution transformers at IEEE T&D in Chicago on Sept. 3, 2026, saying the equipment is designed to exceed U.S. Department of Energy efficiency benchmarks. The rollout targets North American utilities, renewable projects and industrial sites facing tighter efficiency rules and long transformer lead times.

Why it matters: - The new transformer line is aimed at U.S. and Canadian grid upgrades, renewable interconnections and industrial power projects that need higher efficiency and faster delivery. - The products are positioned to help buyers reduce electrical losses, lower operating costs and meet stricter federal efficiency requirements. - XIAOWEI is also pitching factory-direct supply as a response to long lead times in the North American transformer market.

What happened: - Jiangsu Xiaowei Electric Co., Ltd. introduced its next-generation distribution transformers at the IEEE Transmission & Distribution Conference and Exposition in Chicago. - The company said the lineup is engineered to exceed U.S. Department of Energy efficiency benchmarks for liquid-immersed and dry-type distribution equipment. - The showcase included three-phase compartmented pad-mounted transformers and single-phase and three-phase pole-mounted transformers. - The products are designed for North American utility networks, renewable energy sites, commercial complexes, industrial parks and rural electrification.

The details: - XIAOWEI says its engineering changes reduce magnetic losses and lift peak operational efficiency to 99.16%. - The company says core-loss reductions range from 15% to 30% versus legacy baseline units. - The transformers use domain-refined grain-oriented cold-rolled silicon steel laminations. - Precision laser scribing, automated zero-burr shearing and 45-degree full-miter step-lap core stacking are part of the redesign. - The product line is certified under IEEE C57.12.00, IEEE C57.12.28, ANSI C83 and UL standards. - The pad-mounted units use tamper-proof cabinet enclosures certified to IEEE C57.12.28 enclosure integrity standards. - Units are available with refined mineral oil or FR3 natural ester fluid. - XIAOWEI says FR3 fluid has a fire point above 300°C. - Heavy-duty C4 or C5-M powder coating is used to resist salt spray, humidity and severe weather. - The product range covers primary voltages up to 35kV, including 34.5kV, 22.9kV, 13.8kV, 12.47kV and 7.2kV inputs. - Output voltages include 480Y/277V, 208Y/120V and 240/120V single-phase. - Power ratings run from 50kVA to 5000kVA for three-phase pad-mounted units and 10kVA to 500kVA for pole-mounted transformers. - The transformers use 100% high-purity oxygen-free electrolytic copper windings. - Third-party type testing was completed by KEMA, TÜV Rheinland and SGS. - Verified tests included 95kV and 105kV basic impulse insulation level lightning surge testing with zero breakdown, short-circuit mechanical withstand verification and full-load thermal temperature-rise validation. - The company says every transformer goes through factory acceptance testing that includes winding resistance, turns ratio, insulation resistance, dielectric withstand and loss measurement. - XIAOWEI says its manufacturing process covers core cutting, copper coil winding, vacuum pressure drying, tank welding and automated electrostatic powder coating.

Between the lines: - The presentation blends product launch with a supply-chain pitch, signaling that transformer availability is now part of the sales message, not just technical performance. - The emphasis on standards, third-party testing and factory documentation suggests XIAOWEI is trying to reduce procurement friction for utilities and EPC contractors. - The company is also framing its products as a substitute for uncertified supply channels, where quality and compliance risks can delay projects.

What's next: - XIAOWEI said buyers can request technical loss calculation sheets, CAD dimensional models, factory test certificates and volume price quotations through its company portal: More information. - The company said its technical sales team can provide IEEE compliance documentation, short-circuit withstand calculations, seismic reports and custom transformer selection support. - XIAOWEI will continue marketing the line to utility contractors, commercial developers, EPC firms and industrial operators across North America.