{"id":2014,"date":"2025-12-22T15:32:17","date_gmt":"2025-12-22T15:32:17","guid":{"rendered":"https:\/\/powernextransformer.com\/?post_type=product&p=2014"},"modified":"2026-01-07T12:14:48","modified_gmt":"2026-01-07T12:14:48","slug":"400-kva-three-phase-dry-type-step-up-isolation-transformer-220v-to-380v-industrial-power-transformer","status":"publish","type":"product","link":"https:\/\/powernextransformer.com\/zh\/manufacturer\/400-kva-three-phase-dry-type-step-up-isolation-transformer-220v-to-380v-industrial-power-transformer\/","title":{"rendered":"400 kVA Three Phase Dry-Type Step-Up Isolation Transformer, 220V to 380V Industrial Power Transformer"},"content":{"rendered":"

400kVA Three Phase Dry-Type Step-Up Isolation Transformer for Industrial Voltage Conversion<\/h1>\n

The 400kVA three phase dry-type step-up isolation transformer<\/a> is a high-capacity industrial power transformer specifically engineered for voltage step-up, electrical isolation, and reliable three phase power conversion in heavy-duty industrial and infrastructure applications. Designed to support three phase industrial power systems, this dry-type isolation transformer commonly converts 220V primary voltage to 380V secondary voltage, while also supporting a wide range of other standard industrial voltages to meet global power requirements.<\/p>\n

As a 400 kVA isolation transformer, this unit is suitable for large-scale industrial loads, centralized power distribution systems, and projects requiring stable high-capacity voltage conversion. The dry-type, oil-free design ensures safe operation, low maintenance, and compliance with strict environmental and fire safety standards, making it ideal for indoor installations and mission-critical industrial environments.<\/p>\n

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Technical Specifications \u2013 400kVA Dry-Type Step-Up Isolation Transformer<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Item<\/th>\nSpecification<\/th>\n<\/tr>\n
Power Rating<\/td>\n400 kVA<\/td>\n<\/tr>\n
Transformer Type<\/td>\nDry-Type Isolation Transformer<\/td>\n<\/tr>\n
Phase<\/td>\nThree Phase<\/td>\n<\/tr>\n
Primary Voltage (Standard)<\/td>\n220V<\/td>\n<\/tr>\n
Secondary Voltage (Standard)<\/td>\n380V<\/td>\n<\/tr>\n
Optional Primary Voltages<\/td>\n200V, 208V, 220V, 230V<\/td>\n<\/tr>\n
Optional Secondary Voltages<\/td>\n380V, 400V, 415V, 440V<\/td>\n<\/tr>\n
Voltage Function<\/td>\nStep-Up \/ Voltage Conversion<\/td>\n<\/tr>\n
Frequency<\/td>\n50 \/ 60 Hz<\/td>\n<\/tr>\n
Connection Type<\/td>\nDelta\u2013Wye (common), Wye\u2013Wye or Delta\u2013Delta optional<\/td>\n<\/tr>\n
Cooling Method<\/td>\nAir Natural (AN), oil-free<\/td>\n<\/tr>\n
Insulation Class<\/td>\nClass F \/ Class H<\/td>\n<\/tr>\n
Temperature Rise<\/td>\n80K \/ 100K<\/td>\n<\/tr>\n
Enclosure<\/td>\nNEMA 1 indoor (NEMA 3R optional)<\/td>\n<\/tr>\n
Standards<\/td>\nANSI, IEEE, IEC<\/td>\n<\/tr>\n
Certifications<\/td>\nUL, cUL, CSA, CE, SGS (optional)<\/td>\n<\/tr>\n
Customization<\/td>\nOEM \/ ODM \/ Private Label available<\/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