12.47kV 7.2kV Oil Immersed Transformer Three Phase Capacity 45 to 3750kVA Cooling Method Oil Immersion Designed for Electrical Systems
Product Description: The Oil Immersed Transformer is a highly reliable and efficient power distribution solution designed to meet various industrial and commercial needs. Utilizing advanced oil insulation technology, this transformer ensures superior dielectric strength and excellent heat dissipatio...
12.47kV oil immersed transformer
,three phase oil transformer 3750kVA
,oil cooled electrical system transformer
Product Description:
The Oil Immersed Transformer is a highly reliable and efficient power distribution solution designed to meet various industrial and commercial needs. Utilizing advanced oil insulation technology, this transformer ensures superior dielectric strength and excellent heat dissipation, making it ideal for continuous operation in demanding environments. The oil insulation not only protects the internal windings from electrical faults but also extends the overall lifespan of the transformer by maintaining optimal operating temperatures.
Available in a wide range of voltage ratings including 12.47kV/7.2kV, 13.8kV/480V, and customizable options tailored to specific requirements, this transformer provides versatile application possibilities. Whether you need a standard configuration or a customized solution, the Oil Immersed Transformer can be configured to seamlessly integrate into your power distribution network. Its ANSI/UL Certified transformer status guarantees compliance with stringent safety and performance standards, giving users confidence in its quality and reliability.
Designed primarily as a power and distribution transformer, it plays a crucial role in stepping down high voltage electricity to usable levels for residential, commercial, and industrial facilities. The transformer type offered is commonly the S13 model, known for its robust construction and operational efficiency, but customizable transformer types are available to cater to specialized needs. This flexibility ensures that the product can be adapted to diverse electrical systems and varying load demands.
The Oil Immersed Transformer supports three-phase capacities ranging from 45kVA to 3750kVA, covering a broad spectrum of power requirements. This capacity range makes it suitable for small-scale installations as well as large utility substations, providing reliable power transformation and distribution across multiple applications. Its design meets the rigorous demands of 60H transformers, ensuring optimal performance in 60 Hz power systems prevalent in many regions.
In addition to its technical features, the transformer complies with CE transformer standards, confirming adherence to European safety, health, and environmental protection requirements. This certification underscores its international applicability and ensures that the product meets global market expectations. The CE marking, combined with ANSI/UL certification, positions this Oil Immersed Transformer as a trusted choice for customers seeking high-quality, compliant electrical equipment.
Construction-wise, the transformer is engineered with durable materials and precision manufacturing processes, ensuring resilience against mechanical stress and environmental factors. The oil-filled tank provides effective insulation and cooling, preventing overheating and enhancing the transformer’s operational stability. Maintenance is simplified due to the transformer's design, which allows easy access for inspections and oil testing, further contributing to its longevity and dependable performance.
Overall, this Oil Immersed Transformer is an optimal solution for power distribution needs, combining advanced oil insulation technology, versatile voltage ratings, and a broad capacity range. Its compliance with ANSI/UL and CE certifications guarantees safety and quality, while its customizable features make it adaptable to various industrial applications. Whether used in commercial buildings, manufacturing plants, or utility networks, this transformer delivers efficient, reliable, and safe electrical power transformation, making it a vital component in modern power distribution systems.
Features:
Our transformers offer a wide capacity range from 50kVA to 2500kVA, accommodating a variety of voltage configurations. The primary voltage options include 12.47kV, 13.8kV, and 25kV, while the secondary voltages cover 480V, 277V, 208V, and 120V. This versatility makes them ideal for commercial, industrial, and utility distribution networks.
Constructed with high-purity copper winding material, these transformers deliver low electrical resistance and minimal copper losses. This ensures excellent conductivity and reliable long-term performance under demanding operational conditions.
Compliance with international standards such as ANSI C57, IEC 60076, and UL guarantees that our products meet rigorous quality and safety requirements. Certified for global markets, they provide peace of mind for customers worldwide.
We pride ourselves on strong customization capabilities. Customers can request tailor-made capacities, voltage ratios, tap changer settings, and enclosure specifications, enabling the transformers to perfectly suit specific project demands.
The fully sealed oil-immersed design features a corrosion-resistant steel tank that prevents oil leakage. Its weatherproof and tamper-resistant properties make it an excellent choice for outdoor pad-mounted installations, ensuring durability in harsh environments.
Designed for energy efficiency, these transformers incorporate low noise and ultra-low iron loss technologies. This reduces energy consumption and operational costs, making them ideal for projects focused on sustainability and savings.
Each unit is pre-wired and factory tested, allowing for straightforward plug-and-play installation without the need for on-site assembly. This significantly saves labor and construction time during deployment.
Maintenance requirements are minimal, supported by features such as a pressure relief valve and oil level indicator for easy monitoring. With a service life exceeding 30 years, these transformers offer long-term reliability and value.
Technical Parameters:
The transformer offers a wide capacity range from 50kVA to 2500kVA, designed to operate on a 3-phase system. It supports both 50Hz and 60Hz frequencies, making it suitable for various electrical standards worldwide. The unit is intended for outdoor installation and comes as a pad-mounted type, ensuring stable and secure setup.
Primary voltage options include 12.47kV, 13.8kV, and 25kV, which can be customized according to specific project requirements. On the secondary side, it supports voltages such as 480V, 277V, 208V, and 120V, also customizable to meet different load needs. The windings are made of high-purity oxygen-free copper to ensure excellent conductivity and longevity.
In terms of efficiency, the transformer features a no-load loss of less than or equal to 0.2% of its rated capacity and a load loss of no more than 1.0%. Its impedance voltage ranges from 4% to 6%, which can be adjusted based on standards or customer preference. Cooling is performed using an oil-immersed ONAN method, providing reliable thermal management during operation.
For insulation, the unit complies with ANSI FR3 and Class H standards, ensuring high resistance to thermal and electrical stress. It is protected by an IP54-rated enclosure, making it weatherproof and dustproof, suitable for various outdoor environments. The transformer also meets the ANSI C57.12.00 standard for short-circuit withstand capability, guaranteeing safety during fault conditions.
The noise level is kept low at 60dB or below when measured at a 1 meter distance, promoting a quiet operating environment. The tank is constructed from corrosion-resistant galvanized steel for enhanced durability and protection against harsh weather conditions. Additional accessories include a pressure relief valve, an oil level indicator, and a temperature gauge to facilitate maintenance and ensure safe operation.
Sealing is hermetically designed to prevent oil leakage, maintaining the internal integrity of the transformer. The product holds multiple certifications, such as ANSI C57, IEC 60076, UL, and CE, confirming its compliance with international safety and performance standards. Customization options are available for voltage ratio, capacity, tap changers, and enclosure color to better fit customer specifications.
Applications:
The TNNPI PadMount Oil Immersed Transformer is an ideal solution for various electrical distribution needs, especially in outdoor and industrial environments. Manufactured in Henan, this three-phase transformer is designed to meet stringent international standards including CE, ISO, and UL certifications, ensuring reliable performance and safety. Its robust construction and oil immersion cooling method make it highly efficient in managing heat dissipation, which is essential for continuous operation under heavy load conditions.
This 480V transformer is widely used in applications requiring stable voltage transformation and distribution, such as commercial complexes, residential areas, and utility substations. The PadMount model is particularly suitable for underground electrical distribution systems, offering a compact and secure design that reduces environmental impact and enhances operational safety. With options for customization in connection group labels and connection symbols such as Yd11, Yyn0, and Dyn11, the transformer can be tailored to meet specific system requirements and configurations.
In addition to standard two-winding transformers, TNNPI also offers transformer three-winding models, which are essential in applications requiring multiple voltage levels or complex network interconnections. These transformers comply with IEC 60076 transformers standards, ensuring compatibility with international electrical infrastructure and guaranteeing high performance and durability.
The product is shipped securely in wooden crates reinforced with steel frames to prevent damage during transit. With a minimum order quantity of just one unit and a delivery time of 7-14 business days, TNNPI provides flexible supply options including OEM and ODM services. Payment terms such as T/T and Western Union further facilitate smooth transactions for customers worldwide.
The TNNPI PadMount Oil Immersed Transformer is the best choice for those seeking the best price and best quality in China. Its reliable cooling method, customizable connection groups, and compliance with global standards make it suitable for a wide range of application occasions and scenarios—from utility grids and industrial plants to renewable energy projects and urban infrastructure developments.
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