10kv 220v Three-Phase Oil Immersed Power Transformers Outputs 440v Frequencies 50hz and 60hz
10kv 220v Three-Phase Oil Immersed Power Transformers Outputs 440v Frequencies 50hz and 60hz
1. Product Description
The 10kv three-phase oil immersed power transformer with dual 220v and 440v output voltages is a practical medium-voltage distribution transformer tailored for global power grid and industrial power supply systems, supporting universal 50hz and 60hz operating frequencies. This industrial-grade oil filled power transformer adopts 10kv standard high-voltage input, and is designed with dual low-voltage output specifications of 220v single-phase voltage and 440v three-phase voltage, perfectly solving the mixed power supply demands of industrial heavy-load equipment and civilian daily electrical appliances in one single unit. Fully manufactured and tested in accordance with IEC 60076 international industry standards, this multi-output oil immersed transformer is compatible with most AC power systems worldwide, serving as a core voltage conversion device for municipal power distribution, industrial supporting engineering and temporary power supply projects.
Built with high-quality low-loss grain-oriented silicon steel core and full oxygen-free copper winding, this 10kv oil immersed power transformer effectively reduces no-load loss, load loss and magnetic flux leakage during long-term continuous operation. It adopts mature ONAN oil natural air natural cooling technology and fully sealed corrugated oil tank structure, with high-purity insulating oil undertaking internal insulation protection and circulating heat dissipation work. Different from conventional single-output distribution transformers, this dual-output model integrates 220v civilian power supply and 440v industrial power supply functions, and supports free switching and stable operation under both 50hz and 60hz grid frequencies. All finished products pass strict factory voltage ratio calibration and dielectric strength testing, ensuring stable performance and low failure rate in actual on-site operation.
2. Core Uses
This dual-frequency three-phase oil immersed power transformer focuses on accurate step-down conversion of 10kv medium-voltage grid power, and realizes classified power distribution for different terminal loads. Its core function is to convert 10kv high-voltage power from regional main grids into standard 440v three-phase industrial power to support the stable operation of industrial motors, automated production lines and high-power mechanical equipment. Meanwhile, it stably outputs 220v low voltage to meet the power consumption needs of residential households, office equipment, lighting systems and daily civilian electrical devices, realizing integrated industrial and civilian hybrid power supply.
In daily power system operation, the 50hz/60hz universal oil immersed transformer also undertakes key power quality optimization and grid safety protection tasks. It can effectively balance three-phase current and voltage distribution, suppress voltage drop and surge caused by long-distance power transmission and peak load fluctuations, and maintain stable output of 220v and 440v voltage loops. The low-loss structural design greatly reduces power transmission line loss and idle power consumption, improving the overall energy utilization rate of the power distribution system. In addition, it has reliable overload resistance and short-circuit impact resistance, which can effectively protect downstream electrical equipment and avoid equipment damage caused by grid faults.
3. Application Scenarios
3.1 Urban and Rural Municipal Power Grid Distribution
This 10kv three-phase oil immersed power transformer is widely used in urban community power supply, suburban grid upgrading and rural power network reconstruction projects. Most municipal and rural power grids adopt 10kv medium-voltage power transmission standards. The transformer converts 10kv grid power into 220v civilian voltage to meet residents’ daily power consumption, and reserves 440v three-phase output interfaces for community public facilities, street lighting equipment and township small processing equipment. With dual 50hz and 60hz frequency adaptability, it can adapt to different regional municipal grid standards, and the fully sealed outdoor structure supports long-term stable operation of open-air substations.
3.2 Small and Medium Industrial Factory Power Supply
It is the preferred power transformation equipment for light industrial workshops, small manufacturing factories and processing enterprises with mixed power demand. Industrial production requires stable 440v three-phase power for production machinery, transmission equipment and processing devices, while factory office areas, staff dormitories and auxiliary facilities need 220v power supply. This dual-output oil immersed transformer can simultaneously meet industrial production and factory living power needs, avoiding the repeated investment of multiple single-function transformers. Its strong load fluctuation resistance adapts to frequent startup and shutdown of industrial equipment and peak power consumption changes.
3.3 Overseas Civil and Industrial Power Projects
Thanks to its 50hz and 60hz dual-frequency universal design and 220v/440v multi-voltage output capability, this 10kv oil immersed power transformer is highly suitable for overseas power engineering construction and cross-regional equipment supporting. It can operate stably in 60hz power grids prevalent in North America, Southeast Asia and Oceania, as well as 50hz conventional power grids in Europe, Africa and Asia. The matching 220v and 440v voltage grades fully conform to local civilian and industrial power standards in most countries, making it a cost-effective universal equipment for overseas small and medium-sized power distribution projects.
3.4 Temporary Engineering and New Energy Auxiliary Power Supply
The transformer is also commonly used for temporary power supply of field construction projects, water conservancy engineering and road engineering, as well as auxiliary power distribution of distributed photovoltaic and wind power stations. Field engineering mechanical equipment mostly uses 440v three-phase power, while temporary office and living facilities use 220v power. The compact structure and strong environmental adaptability enable it to operate stably in complex field environments. For new energy stations, it can convert grid power into stable low voltage to support the operation of on-site monitoring systems, communication equipment and maintenance facilities.
4. Product Features
4.1 Dual 220V/440V Output for Hybrid Power Supply
Different from traditional single-low-voltage transformers, this three-phase oil immersed power transformer adopts an integrated dual-output design, supporting simultaneous stable output of 220v single-phase voltage and 440v three-phase voltage. It perfectly covers civilian daily power consumption and industrial heavy-load power supply scenarios, realizing one machine for dual purposes. The internal winding parameters are precisely calibrated, with extremely low output voltage fluctuation, which can accurately match the operating voltage requirements of different types of terminal electrical equipment, effectively solving the problem of voltage mismatch in mixed industrial and civilian power supply scenarios.
4.2 50/60Hz Dual-Frequency Global Compatibility
Optimized for global mainstream power frequency standards, this 10kv oil immersed transformer can operate stably in both 50hz and 60hz AC power systems without manual parameter adjustment or structural modification. The core magnetic circuit and coil layout are professionally optimized for dual-frequency working conditions, with no magnetic saturation, abnormal heat generation or power efficiency attenuation during frequency switching. It has ultra-wide grid adaptability, and can be directly put into use in most countries and regions, greatly reducing equipment customization costs for cross-regional power projects.
4.3 Low-Loss Energy-Saving & High Operational Stability
Adopting high-conductivity oxygen-free copper winding and high-performance low-loss silicon steel core, the transformer effectively suppresses magnetic flux leakage and reduces no-load and load operating losses. Compared with traditional ordinary 10kv distribution transformers, the power transmission efficiency is significantly improved, and the long-term operating power consumption is effectively reduced. The equipment has strong anti-interference ability and short-circuit withstand capacity, can cope with complex grid fluctuations and frequent load changes, and maintains long-term stable and efficient operation without frequent failures.
4.4 Fully Sealed Maintenance-Free Oil Immersed Structure
The whole machine adopts an integrated fully sealed corrugated oil tank and vacuum pressure oil injection process, which completely isolates internal insulating oil from external air, dust and moisture. It avoids oil oxidation, emulsification and insulation aging caused by long-term outdoor operation, realizing long-term maintenance-free operation. The mature ONAN natural circulating cooling system has uniform and efficient heat dissipation performance, which can quickly export heat generated by full-load operation, ensuring stable internal temperature and long service life of the transformer.
4.5 Strong Environmental Adaptability & Wide Application Range
The transformer shell undergoes professional anti-corrosion, rust-proof and weather-resistant coating treatment, adapting to indoor substation closed installation and outdoor open-air installation environments. It can operate stably in high temperature, low temperature, humid and dusty harsh working conditions. With moderate volume and convenient installation, it is not only suitable for municipal fixed power distribution stations, but also adaptable to temporary field engineering power supply and new energy station auxiliary power distribution, with extremely high practical value and universality.
5. Frequently Asked Questions (FAQ)
5.1 What are the actual usage differences between 220v and 440v outputs?
The 220v output is a universal single-phase low voltage, mainly used for residential household power supply, office equipment, daily lighting, commercial electrical appliances and other civilian conventional power consumption scenarios, adapting to all kinds of low-power daily electrical equipment. The 440v three-phase output is dedicated to industrial scenarios, suitable for industrial motors, automated production lines, construction machinery and other high-power three-phase equipment. This dual-output design allows one 10kv oil immersed power transformer to meet both civilian life and industrial production power demands, eliminating the need for separate industrial and civilian transformers and saving project investment and installation space.
5.2 Does dual-frequency operation affect the service life and safety of the transformer?
No, 50hz and 60hz dual-frequency operation will not affect the service life and operational safety of the equipment. This three-phase oil immersed power transformer is professionally designed and strictly tested for dual-frequency working conditions. All internal electrical parameters, core structure and heat dissipation systems are fully adapted to two mainstream grid frequencies. Whether operating in 50hz domestic conventional grids or 60hz overseas industrial grids, the equipment maintains stable voltage conversion accuracy, low loss performance and heat dissipation efficiency, without abnormal heating, voltage deviation or safety hazards, with the same stable service life as single-frequency dedicated transformers.
5.3 What working conditions is this 10kv dual-output oil immersed transformer suitable for?
This universal oil immersed power transformer is mainly applicable to all scenarios with 10kv medium-voltage grid access and mixed industrial and civilian power demand. It covers municipal urban and rural power grid distribution, small and medium industrial factory comprehensive power supply, overseas cross-regional power engineering, field temporary engineering power supply and new energy station auxiliary power distribution. It supports long-term full-load continuous operation and frequent load fluctuation operation, and can adapt to indoor and outdoor, humid and dusty complex working environments, with strong comprehensive applicability and stable on-site operation performance.
