3 Phase 800kva 630kva 400kva 220v To 110v Step Up Electricity Transformer Oil Immersed

3 Phase 800kva 630kva 400kva 220v To 110v Step Up Electricity Transformer Oil Immersed Power 2500 kva Transformer
1. Product Description
The 3 Phase 800kva 630kva 400kva 220v To 110v Step Up Electricity Transformer Oil Immersed Power 2500 kva Transformer is a heavy-duty three-phase oil immersed power conversion unit built for industrial and commercial voltage matching projects. Covering four mainstream capacity grades including 400kVA, 630kVA, 800kVA and 2500kVA, this oil immersed step up transformer specializes in bidirectional voltage conversion between 220V and 110V three-phase power systems, solving common voltage standard mismatch issues in cross-regional equipment deployment and power grid renovation.
Manufactured in full compliance with IEC 60076 international power transformer standards, this three-phase electricity transformer adopts high-density grain-oriented silicon steel core and full pure copper winding layout. With precision turn ratio calibration and vacuum oil injection processing, the equipment delivers accurate 220V to 110V step-up conversion while maintaining balanced three-phase current output. Upgraded S11 and S13 energy-saving designs effectively lower no-load loss and operational heat generation compared with conventional voltage conversion transformers, ensuring stable electromagnetic performance under long-term continuous load operation.
Designed with a fully sealed corrugated steel tank structure, this 2500kVA and medium-capacity oil immersed power transformer uses high-purity insulating mineral oil for integrated insulation and heat dissipation. The sealed structure blocks external dust, moisture and corrosive particles, preventing oil aging and insulation degradation. Compatible with both 50Hz and 60Hz global grid frequencies, this versatile step up power transformer serves small, medium and large load scenarios, becoming a reliable core device for industrial voltage adaptation, overseas equipment matching and low-voltage power distribution optimization projects.
2. Core Product Features
2.1 Accurate 220V to 110V Step-Up Voltage Conversion
This three-phase oil immersed step up transformer features professional voltage ratio calibration, achieving precise and stable 220V to 110V power conversion with minimal voltage deviation. Different from ordinary voltage converters with unstable output, this industrial-grade electricity transformer maintains consistent voltage accuracy under no-load, partial-load and full-load conditions. It effectively resolves power supply mismatch problems for 110V-rated electrical equipment running on 220V three-phase power grids, avoiding equipment burnout, startup failure and operational instability caused by incorrect voltage levels.
2.2 Full-Capacity Series Coverage for Diversified Loads
This transformer series covers complete capacity specifications ranging from 400kVA, 630kVA, 800kVA to 2500kVA, fully meeting graded power load demands. The 400kVA and 630kVA compact models suit medium and light-load commercial facilities and small industrial workshops, while the 800kVA version adapts to medium-scale factory production lines. The 2500kVA large-capacity oil immersed power transformer supports heavy-duty continuous operation for large industrial parks and centralized equipment clusters, offering flexible and targeted capacity selection for various engineering projects.
2.3 Low Loss Energy-Saving & Stable Continuous Operation
Optimized core stacking and high-conductivity copper winding technology greatly reduces iron loss and copper loss during long-term operation. This energy-saving oil immersed power transformer delivers lower no-load current and power consumption than traditional transformer models, effectively cutting down long-term operational electricity costs for enterprises and power stations. The standard ONAN natural oil circulation cooling system ensures uniform heat dissipation, controls temperature rise within safe ranges, and supports 24-hour uninterrupted full-load operation without performance attenuation.
2.4 High Sealing Safety & Wide Environmental Adaptability
Adopting fully sealed welded tank construction with outdoor anti-corrosion and rust-proof coating, this three-phase step up electricity transformer resists harsh working conditions including high humidity, dust accumulation and temperature fluctuation. The oil-paper composite insulation system provides excellent dielectric strength, preventing electric leakage, arc discharge and short-circuit faults. With built-in overvoltage and overcurrent resistance performance, the equipment can withstand instantaneous grid surges, ensuring high operational safety and long service life up to 30 years with minimal daily maintenance.
3. Core Purpose
The core purpose of the 3 Phase 800kva 630kva 400kva 220v To 110v Step Up Electricity Transformer Oil Immersed Power 2500 kva Transformer is to realize safe, accurate and stable three-phase voltage step-up conversion between 220V and 110V power standards. It mainly converts conventional 220V industrial and commercial grid voltage into standard 110V three-phase power, enabling the normal operation of imported 110V electrical equipment on local 220V power systems.
Beyond basic voltage transformation, this oil immersed power transformer stabilizes three-phase power balance, filters minor grid voltage fluctuations and reduces power transmission loss. It bridges the voltage standard gap between different regional power grids and industrial equipment, solves the core pain point of incompatible power supply voltage, and ensures continuous, safe and efficient power operation for medium and large-scale industrial production, commercial power distribution and cross-standard equipment supporting projects.
4. Application Scenarios
4.1 Industrial Equipment Voltage Matching Projects
This 220V to 110V three-phase step up transformer is widely used for imported industrial equipment power matching. Many overseas mechanical devices, precision processing machines and automated production lines are designed for 110V three-phase power supply, while domestic industrial grids adopt 220V standards. The 400kVA, 630kVA and 800kVA medium-capacity models perfectly support single workshop and production line power conversion, and the 2500kVA large-capacity oil immersed transformer meets centralized power supply demands for entire factory equipment clusters.
4.2 Commercial & Cross-Regional Power Supply Projects
It is ideal for international shopping malls, foreign-funded enterprise office parks and cross-border commercial facilities that introduce 110V imported electrical appliances and office equipment. The stable voltage conversion performance ensures normal operation of commercial precision equipment, refrigeration systems and automated control devices. The low-noise and energy-saving operation features comply with commercial environmental protection standards, making it suitable for long-term unattended power regulation and voltage matching in commercial scenarios.
4.3 Power Grid Renovation & Voltage Standard Adaptation
Applicable for rural and urban low-voltage power grid renovation, industrial park power system upgrading and regional voltage standard adjustment projects. For areas needing to adapt to 110V power equipment while retaining 220V grid architecture, this oil immersed step up electricity transformer provides efficient and reliable voltage conversion solutions. It optimizes terminal power quality, balances three-phase load and improves the stability and compatibility of existing power distribution systems.
4.4 Special Industrial & Engineering Supporting Scenarios
This heavy-duty oil immersed power transformer is also widely applied in engineering construction sites, equipment testing laboratories, new energy supporting power distribution and special industrial production scenarios. Its strong environmental adaptability and overload resistance cope with complex on-site power conditions, providing stable 110V standard power supply for engineering temporary equipment, experimental testing devices and special industrial electrical systems.
5. Frequently Asked Questions (FAQ)
Q1: How to select the correct capacity among 400kVA, 630kVA, 800kVA and 2500kVA models?
For small-scale commercial facilities, single production lines and light-load 110V equipment clusters, the 400kVA and 630kVA three-phase step up transformers offer cost-effective and stable performance. For medium-sized factories and multi-equipment workshops with moderate power consumption, the 800kVA model provides sufficient load margin for daily operation and peak power demand. The 2500kVA large-capacity oil immersed power transformer is recommended for large industrial parks, full-factory centralized power conversion and heavy-duty continuous operation scenarios, effectively avoiding long-term overload operation and extending equipment service life.
Q2: Can this 220V to 110V step up transformer support bidirectional voltage conversion?
Yes, this series of three-phase oil immersed electricity transformers supports flexible bidirectional voltage conversion. It can not only step up 220V to 110V for equipment matching, but also realize 110V to 220V step-down conversion according to actual project needs. The whole machine adopts symmetric winding design with stable voltage conversion efficiency in both directions. All capacity specifications including 400kVA, 630kVA, 800kVA and 2500kVA maintain consistent bidirectional conversion performance, fully adapting to diverse voltage matching and grid adjustment requirements of different projects.
Q3: What are the core advantages of oil immersed type compared with dry type 220V/110V step up transformers?
This oil immersed power transformer adopts insulating oil circulating heat dissipation, featuring better heat resistance, higher overload tolerance and more stable long-term operation than dry-type transformers. The fully sealed structure effectively resists dust, moisture and industrial corrosion, suitable for outdoor installation and harsh industrial environments. With lower operational temperature rise and lower energy loss, it delivers higher cost performance for 24-hour continuous industrial operation. In addition, the oil immersed design has stronger short-circuit withstand capability and longer service life, making it more suitable for medium and large-capacity voltage conversion projects compared with dry-type products.

