10KV 220V Three-Phase Oil Immersed 380V/110V/440V/480V Output 50/60Hz Frequency
10KV 220V Three-Phase Oil Immersed 380V/110V/440V/480V Output 50/60Hz Frequency
1. Product Description
The 10KV 220V Three-Phase Oil Immersed Transformer with multi-output voltage options of 380V, 110V, 440V and 480V supports dual 50Hz and 60Hz operating frequencies, serving as a versatile multi-specification medium-voltage step-down distribution device for global power grid systems. Designed with a fixed 10kV high-voltage primary input, this three-phase oil-filled power transformer breaks the limitation of single voltage output of traditional distribution transformers, covering mainstream low-voltage specifications for civilian, commercial and industrial power consumption worldwide. It can stably convert 10kV medium-voltage grid power into multiple standard low-voltage outputs including 220V, 110V, 380V, 440V and 480V, fully adapting to mixed single-phase and three-phase load demands in complex power supply scenarios.
Manufactured in compliance with IEC 60076 and IEEE international power industry standards, this dual-frequency oil immersed transformer adopts high-quality low-loss silicon steel sheet core and high-purity copper winding structure, paired with mature ONAN oil natural air natural cooling technology and fully sealed corrugated tank design. The optimized three-phase magnetic circuit balance structure effectively suppresses magnetic flux leakage and current deviation, ensuring consistent output accuracy under both 50Hz and 60Hz grid operating conditions. Every unit undergoes strict factory testing for voltage conversion stability, insulation resistance, frequency adaptability and full-load durability, eliminating hidden faults in daily operation.
Different from conventional fixed-parameter transformers, this 10kV multi-output three-phase transformer features flexible voltage matching and strong grid compatibility. It integrates low-voltage standards suitable for Asian, European and American power systems, solving the problem of equipment model mismatch in cross-regional power projects and mixed load power supply. The fully sealed oil tank structure prevents insulating oil aging, moisture intrusion and dust accumulation, maintaining long-term stable insulation and heat dissipation performance for indoor and outdoor power distribution operation.
2. Core Purpose
The core purpose of this 10KV multi-output three-phase oil immersed transformer is to realize safe, efficient and multi-specification medium-to-low voltage conversion for 50Hz and 60Hz dual-frequency power grids. It mainly undertakes the step-down task of 10kV medium-voltage overhead lines and substation power, converting high-voltage power into diversified usable low-voltage power to meet the differentiated power demand of single-phase civilian loads and three-phase industrial loads simultaneously.
This universal dual-frequency distribution transformer effectively optimizes regional power grid operation quality. Its multi-voltage output design avoids repeated configuration of multiple single-specification transformers for mixed load scenarios, greatly saving engineering equipment investment and installation space. The low-loss winding and core structure reduces no-load loss and load operation loss in daily power distribution, lowering long-term power consumption and grid operation costs for power supply enterprises and end users.
In addition, the high-strength oil insulation system realizes physical isolation between high-voltage and low-voltage circuits, providing reliable overvoltage, overload and short-circuit protection. It can effectively resist grid voltage surge and lightning interference, stabilize terminal voltage output, and ensure continuous and safe power supply for civilian living equipment, commercial electrical devices and industrial mechanical equipment in both 50Hz domestic grids and 60Hz overseas grid environments.
3. Application Scenarios
3.1 Urban and Rural Civil Power Distribution Projects
This 10kV three-phase oil immersed transformer is widely used in urban residential communities, rural power grid renovation and suburban township centralized power supply scenarios. The 220V and 110V single-phase output voltages perfectly match household electricity standards in different regions, supporting daily power consumption of household appliances, lighting systems and civilian auxiliary equipment. The 380V three-phase output meets the power demand of community public facilities such as water pumps, elevators and landscape lighting, solving the mixed power supply demand of residential single-phase and public three-phase loads.
3.2 Small and Medium Industrial Production Sites
The 380V, 440V and 480V industrial-grade low-voltage outputs are highly applicable to light industrial workshops, small manufacturing factories, food processing plants and mechanical processing bases. 380V output adapts to conventional domestic industrial equipment, while 440V and 480V outputs are suitable for imported mechanical equipment and overseas standard industrial devices. The dual 50Hz/60Hz frequency compatibility enables stable operation of industrial production lines under different grid frequency standards, meeting long-term intermittent and full-load power supply demands of small and medium industrial enterprises.
3.3 Commercial and Public Infrastructure
It is an ideal power distribution device for shopping malls, office buildings, school campuses, hospital power distribution rooms and municipal public facilities. These scenarios have complex load types, requiring both single-phase power for office equipment and lighting, and three-phase power for central air conditioning, water supply and drainage equipment and medical devices. The multi-output voltage design of this transformer can meet all power demand specifications in one unit, ensuring stable and uninterrupted operation of public and commercial power systems.
3.4 Overseas Engineering and Cross-Regional Projects
Thanks to its 50Hz/60Hz dual-frequency adaptation and full-coverage low-voltage specifications, this 10kV oil immersed distribution transformer is widely used in overseas rural grid construction, foreign industrial park supporting projects and cross-border temporary power supply projects. It can freely adapt to 110V/220V civilian standards and 380V/440V/480V industrial standards in different countries, eliminating equipment customization troubles caused by regional grid parameter differences, and greatly improving the flexibility of overseas power engineering construction.
4. Product Features
4.1 Full-Coverage Multi-Voltage Output Compatibility
This three-phase oil immersed transformer uniquely integrates six mainstream low-voltage output specifications: 110V, 220V, 380V, 440V, 480V, covering almost all civilian and industrial low-voltage standards in global power grids. With a fixed 10kV medium-voltage input, it can flexibly switch output voltages according to on-site load demands, realizing one machine for multiple purposes. Compared with traditional single-output transformers, it avoids repeated equipment procurement and installation for mixed load scenarios, greatly improving project cost performance.
4.2 Dual 50Hz/60Hz Universal Frequency Adaptability
Professionally calibrated for dual-frequency operation, the equipment maintains stable voltage conversion efficiency and low-loss operation state in both 50Hz conventional grids and 60Hz overseas grids. The internal core and winding parameters are optimized for dual-frequency working conditions, with no power attenuation or overheating problems during frequency switching. It perfectly adapts to regional grid standards in Asia, Europe, America and Southeast Asia, becoming a universal standard device for global medium-voltage power distribution projects.
4.3 Low-Loss Energy-Saving and Stable Operation
Adopting high-permeability low-loss silicon steel core and high-purity copper winding, the transformer effectively reduces magnetic flux leakage and coil resistance loss. The balanced three-phase winding structure ensures uniform current distribution, low no-load current and small temperature rise during long-term operation. It effectively suppresses grid fluctuation and voltage deviation, maintaining precise and stable multi-voltage output under variable load conditions, with more outstanding energy-saving performance than traditional ordinary transformers.
4.4 Excellent Environmental Adaptability and Durability
Equipped with a fully sealed welded steel tank and high-anti-aging insulating oil, this oil immersed transformer has superior waterproof, dustproof, moisture-proof and insulation properties. The outer shell adopts multi-layer anti-corrosion and anti-rust spraying technology, resisting outdoor wind, sun, rain and temperature changes. The mature ONAN natural cooling system ensures uniform heat dissipation, supporting long-term unattended operation in harsh outdoor substations, industrial workshops and remote power supply sites, with a service life of more than 20 years.
4.5 High Safety and Low Maintenance Cost
Built with complete overvoltage, overload, short-circuit and lightning surge protection functions, the equipment can quickly cut off faulty circuits in case of grid abnormalities or load overload, effectively protecting terminal electrical equipment and grid line safety. The fully sealed structure avoids insulating oil deterioration and leakage, requiring no frequent oil replacement and routine maintenance. The standardized structural design supports diverse installation methods, with simple on-site debugging and low later operation and maintenance costs.
5. Frequently Asked Questions (FAQ)
5.1 How to match different output voltages for actual usage scenarios?
For daily civilian power supply, 110V and 220V outputs are applicable to household lighting, small household appliances and residential single-phase loads, adapting to American and Asian civilian voltage standards respectively. For commercial and industrial scenarios, 380V is suitable for conventional domestic three-phase equipment and public facilities, while 440V and 480V are the preferred voltages for imported industrial machinery, automated production lines and overseas standard industrial equipment. Reasonable voltage matching can ensure equipment operation efficiency and avoid voltage mismatch faults.
5.2 What is the actual advantage of dual 50Hz/60Hz frequency design?
Most traditional transformers only support single fixed frequency, which cannot be adapted to cross-regional grid conversion and overseas projects. This 10KV multi-output three-phase oil immersed transformer is optimized for dual-frequency working conditions, operating stably in both 50Hz power grids in China, Europe and most Asian regions and 60Hz power grids in North America and Southeast Asia. It requires no parameter modification or structural adjustment during frequency switching, effectively solving equipment incompatibility problems for cross-border engineering and grid upgrading projects.
5.3 Can this multi-voltage transformer operate stably with mixed loads?
Yes, it supports long-term stable operation of mixed single-phase and three-phase loads. The optimized three-phase balance structure of the transformer can effectively balance load deviation caused by simultaneous operation of multiple voltage loads, avoiding local overheating and voltage instability. Whether it is civilian single-phase power consumption or industrial three-phase power equipment operation, it can maintain stable output quality and low-loss operation. It is specially designed for complex mixed-load power supply scenarios and has higher practicality than single-specification transformers.
