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 how to properly check the oil level in oil-immersed transformers to ensure safe and stable power system operation. Step-by-step guide for maintenance personnel.
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Learn key maintenance practices and expert tips for single-phase oil-immersed transformers to ensure safe and efficient operation.
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Discover the 8 key reasons why oil-immersed transformers outperform dry-type models in cooling, insulation, service life, and cost. Ideal for industrial, energy, and high-load applications.
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Explore the safety differences between oil-type and dry-type transformers in this comprehensive comparison. Discover which type offers better fire resistance, lower risk of leakage, and enhanced reliability for your electrical system. Find out the key fac
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Discover ZTelec Group’s phase-shifting rectifier transformers—engineered to reduce harmonics and optimize power quality in industrial systems. Learn about their advantages and key applications.
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Explore the critical technologies and innovative methods in the design and manufacturing of oil-immersed transformers, including insulation systems, cooling techniques, and efficiency optimization.
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