{"id":1942,"date":"2026-01-06T08:29:11","date_gmt":"2026-01-06T08:29:11","guid":{"rendered":"https:\/\/yawei-powertransformer.com\/?post_type=product&p=1942"},"modified":"2026-01-09T08:07:22","modified_gmt":"2026-01-09T08:07:22","slug":"400kva-three-phase-oil-immersed-power-transformer-for-utility-and-industrial-power-systems","status":"publish","type":"product","link":"https:\/\/yawei-powertransformer.com\/zh\/manufacturer\/400kva-three-phase-oil-immersed-power-transformer-for-utility-and-industrial-power-systems\/","title":{"rendered":"400kVA \u4e09\u76f8\u6cb9\u6d78\u5f0f\u96fb\u529b\u8b8a\u58d3\u5668\uff0c\u9069\u7528\u65bc\u516c\u7528\u53ca\u5de5\u696d\u96fb\u529b\u7cfb\u7d71"},"content":{"rendered":"

Overview \/ Product Introduction for 400kVA Medium Voltage Oil-Immersed Distribution Transformer<\/h2>\n

The 400kVA Three-Phase Oil-Immersed Power Transformer manufactured by Yawei Transformer is an industrial-grade solution designed for utility networks, industrial plants, substations, commercial complexes, renewable energy installations, and critical infrastructure projects worldwide. Built to comply with IEC, ANSI, IEEE, and GB\/T standards, this transformer delivers high reliability, low losses, and efficient medium-voltage power distribution.<\/p>\n

Supporting medium voltage from 6kV to 35kV and customizable capacities from 50kVA to 10,000kVA, this transformer provides flexible configurations for diverse industrial, utility, and substation power requirements. Its three-phase oil-immersed design ensures long-term operational stability, high dielectric strength, and safe performance under heavy load and extreme environmental conditions.<\/p>\n

The 400kVA model is ideal for industrial plants, renewable energy projects, municipal grids, commercial buildings, and large-scale infrastructure. Advanced design features include high-efficiency windings, robust insulation, and oil cooling systems, which reduce energy loss and extend service life. Factory direct supply, OEM customization, and global wholesale solutions make it an excellent choice for B2B clients seeking medium-voltage, industrial-grade transformers.<\/p>\n

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Technical Specifications & Electrical Parameters for 400kVA Three-Phase Oil-Immersed Distribution Transformer<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n
Rated Capacity<\/td>\n400kVA (customizable, typical range 50\u201310,000kVA)<\/td>\n<\/tr>\n
Primary Voltage<\/td>\n6kV, 10kV, 15kV, 20kV, 35kV (customizable)<\/td>\n<\/tr>\n
Secondary Voltage<\/td>\nStandard low-voltage options 230V, 400V, 480V, or project-specific<\/td>\n<\/tr>\n
Transformer Type<\/td>\nThree-Phase Oil-Immersed Power Transformer \/ Industrial Distribution Transformer<\/td>\n<\/tr>\n
Cooling Method<\/td>\nONAN (Oil Natural Air Natural), optional ONAF (Oil Natural Air Forced) for high-load operation<\/td>\n<\/tr>\n
Installation Type<\/td>\nIndoor, outdoor, substation, floor-mounted, or enclosure-installed<\/td>\n<\/tr>\n
Winding Configuration<\/td>\nGrounded Wye \/ Wye or Delta; other vector groups available<\/td>\n<\/tr>\n
Voltage Regulation<\/td>\nOff-circuit tap changer standard; optional On-Load Tap Changer (OLTC) for dynamic voltage control<\/td>\n<\/tr>\n
Insulation System<\/td>\nMineral oil with conservator tank and breather, eco-friendly, high dielectric strength<\/td>\n<\/tr>\n
Applicable Standards<\/td>\nIEC, ANSI, IEEE, GB\/T<\/td>\n<\/tr>\n
Typical Applications<\/td>\nIndustrial plants, utility networks, substations, renewable energy projects, commercial and infrastructure installations<\/td>\n<\/tr>\n
Manufacturer \/ Supplier<\/td>\nYawei Transformer \u2013 Factory direct, wholesale, OEM, custom solutions<\/td>\n<\/tr>\n
Global Delivery<\/td>\nUSA, Canada, UK, Germany, France, Spain, Italy, Australia, Mexico, Argentina, Brazil, worldwide<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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\n\t\t\t\"400kVA\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n