Our transformers are designed according to international standards and delivered to customers with assured-quality and perfect after-sale services.
Environmental protection, safety, easy maintenance, noise and heat dissipation performance is relatively weak.
Learn MoreReasonable structure, excellent performance, diversity of cooling methods, wide application and environmental protection
Learn MoreHigh mechanical strength, low noise, small size, high insulation level, long life, resista
Learn MoreEnvironmental protection, safety, easy maintenance, noise and heat dissipation performance is relatively weak.
Learn More
Founded in 1958, Henan Ztelec Electric Technology Group (ZTELEC Group) designs transformers to meet international standards. We ensure top performance and reliability, with quality assurance and excellent after-sales service. Choose ZTELEC for trustworthy transformers.
Years of experience in manufacturing high-quality, reliable transformers.
Full after-sales service to keep your transformers running smoothly.
Learn about the iron core content and design features of oil-immersed transformers, including material selection, structural design, magnetic performance, and energy efficiency.
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Oil-immersed transformers are widely used in power transmission and distribution systems due to their high efficiency, excellent insulation performance, and lon
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Discover how to choose the right oil-immersed transformer voltage level in 2025. This complete guide covers voltage classes, regional standards, and expert tips for optimal transformer selection.
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Learn how to select the right dry-type transformer model with this practical guide. Avoid common selection mistakes and ensure reliable, cost-effective transformer performance.
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Explore how voltage levels affect the price and cost-performance of oil-immersed transformers. Learn how to choose the right model for your project.
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Avoid common pitfalls in oil-immersed transformer voltage selection. Learn practical tips and expert insights to ensure safe, efficient power distribution.
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