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 accurately match oil-immersed transformer capacity with different application scenarios. This guide covers capacity calculation, industry applications, and selection strategies to ensure safety and efficiency.
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Comprehensive guide on DC resistance testing of dry-type transformers, including principles, test procedures, precautions, and troubleshooting methods for reliable transformer maintenance.
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Ztelecgroup 2025 National Day Holiday Notice. Holiday from October 1–8, 2025, with normal business resuming on October 9. Includes arrangements for orders, logistics, and emergency contacts.
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Detailed analysis of 500kV oil-immersed transformer faults, including causes, detection methods, and practical solutions to enhance reliability, safety, and service life of ultra-high-voltage transformers.
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Learn how to choose the right 10kV oil-immersed transformer capacity from 30kVA to 31500kVA. This guide covers selection principles, application scenarios, technical parameters, and key factors for safe and efficient operation.
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Explore 10kV dry-type transformer noise control methods and energy-saving technologies. Learn about noise reduction design, insulation materials, cooling systems, and smart operation strategies to enhance efficiency and sustainability.
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