SHENGTE three-phase oil-immersed transformers utilize oil as both the primary insulating medium and cooling agent. The fully sealed tank design isolates the oil from air, ensuring safer operation, enhanced reliability, and minimal daily maintenance. Featuring a laminated iron core—a hallmark of high-quality distribution transformers—SHENGTE's NLTC models are engineered to significantly reduce no-load loss and current. This design translates to tangible benefits in the field: whether deployed in residential complexes or industrial facilities, our three-phase transformers minimize energy waste while delivering stable, consistent performance. In short, SHENGTE three-phase distribution transformers are built for exceptional durability, efficiency, and a long operational lifespan.

Features:

• Short-Circuit Resistance: This oil immersed transformer uses windings with low axial short-circuit force. These help boost dynamic stability when the grid has faults. As a result, the transformer stays whole in structure. It avoids any bending under harsh electrical pressure.

• Structural Reliability: As a solid oil immersed distribution transformer, it has a sturdy inner bracing setup. This holds the windings firmly in position. It cuts down on shaking and shifting. Therefore, it aids a working life that lasts for many years.

• Low Flux Density Design: This oil type transformer applies a fine-tuned core cross-section. It also draws on top-quality materials. Together, these allow it to run at a reduced magnetic flux level. This cuts back on no-load energy waste and excitation harmonics. In the end, it improves the power quality in the grid.

• Anti-Corrosion Fasteners: Built for outside power distribution transformer uses, every piece of hardware counts. That includes bolts and nuts. All are crafted from grade 304 stainless steel. This promises top-notch resistance to weather. It also makes upkeep straightforward over extended use.

• Sealing Durability: This three phase oil immersed transformer puts in top-grade nitrile rubber sealing rings. These resist aging well. They form a fully airtight space. This slows the oil's oxidation process. Thus, it greatly lengthens the transformer's overall service time.

Our Advantages:

• Heat Dissipation Performance: This oil immersed transformer employs spiral windings along with lengthwise oil channels. These features promote good heat release. As such, the transformer can handle full load. It does this even in warm surroundings. Plus, the strong mechanical build resists bending and drooping. This holds true under heat and magnetic forces.

• Energy Efficiency: The core in this oil type transformer comes from quality non-oriented silicon steel sheets that are 0.35mm or less. Such material boosts magnetic flow. It also cuts down on no-load energy use a lot. At the same time, it lowers the no-load current.

• Insulation Reliability: As a dependable oil immersed distribution transformer, it draws on insulation materials with high heat ratings. These offer strong defense against excess voltage and overload situations. Consequently, they support steady work over time. They also reduce the chance of power failures.

• Structural Durability: Made for outdoor power distribution transformer uses, the tank uses cold-rolled steel. It goes through a thorough prep process first. This includes removing grease, clearing rust, and adding phosphate. After that, it gets a layer of special three-proof paint. All this provides great defense against sun rays, dampness, and dirt.

• Sealing Reliability: This three phase oil immersed transformer includes quality nitrile rubber sealing rings. They form a tight seal. This blocks air and water from getting in. Therefore, it slows oil breakdown. It also puts off the wear on insulation.

• Safety: The complete sealed setup in this electrical power transformer keeps the inner insulating oil away from outside air. This lowers risks during use. It also ensures safe and steady work. Such features suit crowded places well.

• Long Service Life: This distribution transformer blends quality insulating oil with solid sealing methods. It also has a tough mechanical frame. Together, these promise a working life of many decades. Even harsh temperature changes and shifting loads cannot shorten it.

• Easy Maintenance: The total sealed and sturdy build of this three phase transformer limits how much inside parts touch dirt. As a result, it cuts the need for regular checks and fixes. This, in turn, brings down running expenses.

  
  

Typical Applications：

This oil immersed transformer is commonly used in:

• Industrial plants and manufacturing facilities

• Commercial buildings and infrastructure projects

• Renewable energy systems

• Generator and UPS power distribution

• Urban and rural distribution transformer networks

As a reliable oil immersed distribution transformer, its compact design and dependable operation make it ideal for both permanent and temporary installations.

Product Parameters

Production Process

Company Profile

Guangdong Shengte Electric Co., Ltd. , headquartered in Foshan, China, is a trusted transformer manufacturer recognized for engineering excellence and outstanding customer support. With over a decade of industry experience, we have successfully delivered high-performance, cost-effective power solutions to both public infrastructure and private enterprises across the globe.

Our dedication to superior quality is validated by our long-standing partnerships with German Power Utility clients, whose rigorous standards we consistently meet and exceed.

Strategically located in Foshan, our 10,000-square-meter facility integrates advanced manufacturing and precision testing systems. This enables us to provide fully customized solutions, including OEM and ODM services. Our extensive portfolio encompasses oil-immersed transformers, cast resin dry-type transformers, compact prefabricated substations, and related power distribution equipment.

Certified to international benchmarks — including IEC (ILAC-MRA, CNAS), ISO 9001, UL and CE — every Shengte product delivers verified safety, compliance, and performance, anywhere in the world.

Certifications

Project Cases

Exhibition

Packaging & Shipping

FAQ About SHENGTE Three Phase Oil Immersed Transformer

Q1: What type of transformer is this?

A1: It’s a three-phase oil-immersed transformer. The oil provides both cooling and insulation, and the sealed tank keeps air out — a small thing, but it makes field life way easier.

Q2: Where can this 3-phase electric transformer be used?

A2: This 3-phase electric transformer is designed for a wide range of settings — city streets, industrial facilities, and rural power grids. It’s particularly handy where the power demand can swing a bit during the day.

Q3: How efficient and durable is this three phase distribution transformer?

A3: The laminated silicon steel core (<0.35mm thick) reduces no-load loss, while the spiral coil and oil ducts improve heat dissipation. Combined with stainless steel fasteners and a sturdy support structure, this NLTC distribution transformer runs efficiently and lasts for decades.

Q4: What about safety and maintenance?

A4: SHENGTE three-phase oil-immersed transformer is equipped with fully sealed oil, keeping air and moisture out, reducing insulation risks. High-quality sealing rings and corrosion-resistant bolts make routine checks simpler.

Q5: Are certifications, warranty, and OEM options available?

A5: Yes. We hold ISO9001 and CE certifications, provide IEC-standard test reports, and offer OEM/ODM services. Warranty is 12 months, and we can customize logos or markings if needed.

Q6: What are the payment, MOQ, and delivery details?

A6: MOQ is 1 set. Payment options include T/T, Western Union, PayPal, usually 30% advance and 70% before shipment. Delivery generally takes 20–30 days, depending on quantity. Packaging is a wooden case, or customized if requested — which comes in handy for coastal or humid shipments.