Technical Article

Common Power Transformer Faults: Causes, Solutions, and Prevention

2026-01-04 | By: ZTELEC-www.ztelecgroup.com | 62click

This article explains common power transformer faults, including overload, overheating, insulation failure, short circuits, and mechanical problems. It also introduces practical solutions and preventive measures, and explains how proper tran...

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Operation, Maintenance, and Service Life Management of 11168kVA Oil-Immersed Transformers

2025-12-31 | By: ZTELEC-www.ztelecgroup.com | 180click

This article explores practical operation, maintenance, and service life management strategies for 11168kVA oil-immersed transformers, focusing on condition monitoring, oil management, preventive maintenance, and long-term reliability in pow...

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How to Select a 100 kVA–500 kVA Distribution Transformer for Industrial and Commercial Power System

2025-12-30 | By: ZTELEC-www.ztelecgroup.com | 104click

Learn how to select a 100 kVA–500 kVA distribution transformer for industrial and commercial power systems. This guide covers capacity calculation, oil-immersed vs. dry-type transformers, voltage configuration, energy efficiency, installat...

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10kV Transformer Replacement Timeline: Installation, Testing, and Commissioning

2025-12-25 | By: ZTELEC-www.ztelecgroup.com | 112click

Learn the complete 10kV transformer replacement timeline, including preparatory work, installation, testing, and commissioning. Discover factors affecting replacement time and optimization tips....

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How to Select a Suitable 50kVA–500kVA Distribution Transformer

2025-12-24 | By: ZTELEC-www.ztelecgroup.com | 54click

Learn how to select a suitable 50kVA–500kVA distribution transformer by analyzing load capacity, transformer types, technical parameters, energy efficiency standards, installation environment, and long-term operating costs....

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Dry-Type vs. Oil-Immersed Transformer: Is a 20kV 2500kVA Dry-Type Transformer a Better Choice?

2025-12-24 | By: ZTELEC-www.ztelecgroup.com | 77click

Compare dry-type and oil-immersed transformers for 20kV 2500kVA applications. This article analyzes safety, cooling methods, maintenance costs, environmental impact, and typical use scenarios to help you choose the optimal transformer soluti...

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