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How to Choose an Oil-Type Transformer for Outdoor Installation
2026/08/31Selecting the right oil-type transformer for outdoor use? Learn key factors: cooling methods (ONAN/ONAF), insulation, fire safety, and IEC standards. Expert guide for engineers and buyers.
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How to Test a Running Distribution Transformer： A Step-by-Step Field Guide for Routine Maintenance
2026/08/27Learn how to test a running distribution transformer with this step-by-step guide. Covers insulation resistance, winding resistance, turns ratio, IR scanning, and oil testing. Simple language for non-native English speakers. Safety tips included.
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18 Units Oil immersed transformers dispatch to Africa
2026/08/261. A New Milestone in Africa Expansion We are proud to announce a significant milestone in JSZONMA's continued expansion across the African continent. This month, we successfully dispatched 18 units of 33/0.415kV oil-immersed distribution transf...
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How to Choose an Oil-Filled Transformer for Outdoor Installation
2026/08/22Choosing an outdoor oil-filled transformer? Compare ONAN vs ONAF cooling, mineral oil vs ester fluids, fire safety clearances, and total cost of ownership. Expert checklist for voltage, kVA, and installation compliance included.
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Safe Overload Operation of H-Class Dry-Type Transformers
2026/08/20Not all dry-type transformers handle overload the same way. Compare H-class vs F-class insulation for overload capacity, learn NOMEX paper thermal limits (220°C), and determine safe AF cooling overload duration for data centers and industrial applications.
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Why Are Oil-Immersed Transformer Quotes So Different? 6 Core Variables That Impact Price
2026/08/18Oil-immersed transformer price varies by 30%—learn 6 key factors: copper vs aluminum, efficiency, specs & more. Get a procurement checklist to avoid overpaying.
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