{"id":2321,"date":"2026-04-21T05:59:47","date_gmt":"2026-04-21T05:59:47","guid":{"rendered":"https:\/\/yawei-powertransformer.com\/?post_type=product&p=2321"},"modified":"2026-04-21T06:04:03","modified_gmt":"2026-04-21T06:04:03","slug":"50mva-138kv-high-voltage-power-transformer-for-utility-and-industrial-substations-ieee-ansi-compliant","status":"publish","type":"product","link":"https:\/\/yawei-powertransformer.com\/it\/manufacturer\/50mva-138kv-high-voltage-power-transformer-for-utility-and-industrial-substations-ieee-ansi-compliant\/","title":{"rendered":"Trasformatore di potenza ad alta tensione da 50MVA 138kV per sottostazioni industriali e di pubblica utilit\u00e0 (conforme a IEEE \/ ANSI)"},"content":{"rendered":"

IEEE \/ ANSI Compliant | Yawei Transformer Manufacturer | Factory Direct Supply<\/h2>\n

The 50MVA 138kV high voltage power transformer<\/a> manufactured by Yawei Transformer is engineered for reliable operation in utility substations, industrial power systems, and transmission networks. Designed in compliance with IEEE and ANSI standards, this transformer delivers stable performance, low energy losses, and long service life for demanding grid applications.<\/p>\n

Built at Yawei\u2019s advanced manufacturing facility in China, each unit undergoes strict engineering design, precision assembly, and full factory testing before shipment. It is suitable for global EPC projects, utility companies, and industrial energy infrastructure requiring high reliability and efficiency.<\/p>\n

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Product Overview<\/h2>\n

This transformer is designed to handle medium-to-high capacity power transmission with excellent voltage regulation and grid stability. It is widely used in power distribution systems, renewable energy integration, and industrial substations.<\/p>\n

With a rated capacity of 50MVA and 138kV voltage level, it ensures efficient energy transfer while minimizing operational losses.<\/p>\n

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Key Technical Specifications<\/h1>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Item<\/th>\nSpecification<\/th>\n<\/tr>\n
Rated Capacity<\/td>\n50 MVA<\/td>\n<\/tr>\n
High Voltage<\/td>\n138 kV<\/td>\n<\/tr>\n
Low Voltage<\/td>\nCustomizable (e.g. 13.8kV \/ 34.5kV)<\/td>\n<\/tr>\n
Frequency<\/td>\n60 Hz<\/td>\n<\/tr>\n
Phase<\/td>\nThree-phase<\/td>\n<\/tr>\n
Cooling Method<\/td>\nONAN \/ ONAF<\/td>\n<\/tr>\n
Vector Group<\/td>\nYNd1 \/ Dyn11 (customizable)<\/td>\n<\/tr>\n
Tap Changer<\/td>\nOLTC (\u00b110% or custom range)<\/td>\n<\/tr>\n
Impedance<\/td>\n10%\u201314% (project dependent)<\/td>\n<\/tr>\n
Standards<\/td>\nIEEE \/ ANSI \/ IEC (optional)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Physical Data (Engineering Reference)<\/h2>\n\n\n\n\n\n\n\n\n
Item<\/th>\nValue<\/th>\n<\/tr>\n
Total Weight<\/td>\n85 \u2013 120 tons<\/td>\n<\/tr>\n
Core & Coil Weight<\/td>\n45 \u2013 65 tons<\/td>\n<\/tr>\n
Oil Weight<\/td>\n25 \u2013 35 tons<\/td>\n<\/tr>\n
Tank Material<\/td>\nHigh-strength low-carbon steel<\/td>\n<\/tr>\n
Overall Dimensions<\/td>\nApprox. 6.5m \u00d7 3.8m \u00d7 4.5m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Final size and weight may vary based on project customization and cooling configuration.<\/p>\n

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Main Materials & Components<\/h2>\n

The transformer is built using high-quality industrial-grade materials:<\/p>\n

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  • Core:<\/strong> Grain-oriented silicon steel (low loss design)<\/li>\n
  • Windings:<\/strong> Oxygen-free copper or high-conductivity aluminum (optional)<\/li>\n
  • Insulation Oil:<\/strong> Mineral oil or natural ester fluid (optional)<\/li>\n
  • Tank:<\/strong> Fully welded steel tank with anti-corrosion coating<\/li>\n
  • Bushings:<\/strong> Porcelain or composite (IEEE\/ANSI standard)<\/li>\n
  • Cooling System:<\/strong> Radiator banks with ONAN\/ONAF configuration<\/li>\n
  • Tap Changer:<\/strong> Vacuum OLTC system for voltage regulation<\/li>\n<\/ul>\n
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    Electrical Performance & System Stability<\/h2>\n

    This transformer is designed for high-performance grid operation:<\/p>\n

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    • Excellent voltage regulation under load variation<\/li>\n
    • Low no-load and load losses<\/li>\n
    • High short-circuit withstand capability<\/li>\n
    • Stable harmonic performance<\/li>\n
    • Optimized impedance for grid stability<\/li>\n<\/ul>\n

      It is suitable for continuous 24\/7 operation in critical power systems<\/strong>.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t

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