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.
Discover the S13-500kVA All-Copper Outdoor Three-Phase Oil-Immersed Transformer. With high efficiency, long lifespan, and low losses, it is ideal for industrial, commercial, and infrastructure power systems. Complies with ISO and energy-saving standards.
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Enjoy large discounts on all types of transformers from November 10th to December 21st. Ztelec offers ISO and CE certified dry-type, oil-immersed, and special transformers with global supply and professional technical support.
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ELECTRICAL NETWORKS OF RUSSIA 2025 — Visit ZTelec YuGuangin Moscow from December 2–4 to explore high-efficiency transformers, insulation materials, and advanced power system solutions for the modern energy sector.
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Leading customized box-type substation manufacturer offering durable, safe, and energy-efficient power distribution solutions for industrial, commercial, and renewable energy systems.
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Explore the design, efficiency, and applications of the 1600 KVA oil type transformer. Learn how oil-immersed transformers ensure reliable power distribution for industrial, commercial, and utility networks.
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Should a 10kV oil-immersed transformer be re-oiled or filtered? This article explains oil aging mechanisms, chromatographic analysis, and decision standards to help ensure safe and reliable transformer operation.
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