logo

Industrial Oil Immersed Transformer Designed to Deliver Stable Voltage and Minimized Energy Loss in Electrical Networks

Product Summary

Product Description: The Oil Immersed Transformer is a critical component in modern electrical power systems, designed to efficiently transfer electrical energy between circuits while providing superior cooling and insulation. Unlike Dry Type Transformers, which rely on air cooling and solid ...

Key Attributes
Brand Name: TNNPI
Model Number: sz
Place of Origin: Henan, China
Certification: CE/ISO
MOQ: 1 piece
Price: $71,999.10 / piece
Product Custom Attributes
Highlight

Industrial oil immersed transformer

,

Stable voltage transformer

,

Energy efficient oil transformer

Product Description

Product Description:

The Oil Immersed Transformer is a critical component in modern electrical power systems, designed to efficiently transfer electrical energy between circuits while providing superior cooling and insulation. Unlike Dry Type Transformers, which rely on air cooling and solid insulation, Oil Immersed Transformers use mineral oil or synthetic oil as a cooling and insulating medium, significantly enhancing their performance and durability in demanding environments.

One of the primary advantages of the Oil Immersed Transformer is its excellent thermal management. The oil circulates within the transformer tank, absorbing heat generated by the core and windings during operation. This heat is then dissipated through radiators or cooling fins, maintaining optimal operating temperatures and preventing overheating. This effective cooling system allows Oil Immersed Transformers to handle higher power loads and operate continuously under heavy electrical stress, making them ideal for high voltage and high capacity applications.

In contrast to Encapsulated Power Transformers, which are typically sealed units where the windings and core are fully encapsulated in resin or epoxy, Oil Immersed Transformers offer the flexibility of oil circulation and maintenance. While Encapsulated Power Transformers provide excellent protection against moisture and contaminants, the Oil Immersed Transformer’s design facilitates easier inspection, repair, and oil replacement, thereby extending the transformer's service life and reliability.

The Oil Immersed Transformer is widely used as an Electrical Power Transformer in various sectors, including power generation, transmission, distribution, and industrial manufacturing. Its robust construction and efficient cooling system ensure stable voltage regulation and minimal power loss, which are essential for maintaining the integrity of electrical grids and industrial processes. These transformers are available in a wide range of ratings, from small distribution units to large power transformers used in substations, ensuring versatility and adaptability to diverse operational requirements.

Safety and environmental considerations are also integral to the design of Oil Immersed Transformers. The transformer tanks are constructed from high-quality steel and are equipped with conservators, breather systems, and protective relays to monitor and maintain the oil condition and pressure. Modern designs incorporate biodegradable and less flammable insulating oils, reducing environmental impact and enhancing operational safety compared to traditional mineral oils.

Moreover, the Oil Immersed Transformer is engineered to withstand harsh environmental conditions, including extreme temperatures, humidity, and contamination. Its sealed and robust tank design prevents oil leakage and protects internal components from external damage. This makes it suitable for outdoor installations and critical infrastructure where reliability and durability are paramount.

In summary, the Oil Immersed Transformer represents a vital technology within the realm of electrical power transformation. It combines the advantages of superior cooling and insulation provided by oil with the flexibility of maintenance and high operational capacity. While Dry Type Transformers and Encapsulated Power Transformers serve specific niches with their unique benefits, the Oil Immersed Transformer remains the preferred choice for large-scale, high-performance electrical power transformer applications. Its ability to deliver stable, efficient, and reliable power transformation under demanding conditions makes it indispensable in modern electrical power systems worldwide.


Features:

  • High-quality Electrical Power Transformer designed for reliable energy distribution
  • Robust Oil Immersed Transformer ensuring efficient cooling and insulation
  • Ideal for Industrial Control Transformer applications with stable performance
  • Enhanced durability compared to Dry Type Isolation Transformer options
  • Excellent thermal management due to oil immersion for extended lifespan
  • Low noise operation suitable for industrial environments
  • Superior electrical insulation and protection against environmental factors
  • Available in various ratings to meet diverse industrial power requirements
  • Compliant with international standards for safety and efficiency
  • Easy maintenance and inspection facilitated by oil conservator and breather system

Technical Parameters:

Product Type Oil Immersed Transformer
Application Industrial Control Transformer, Electrical Power Transformer
Insulation Type Oil Immersed
Rated Power 10 kVA - 5000 kVA
Primary Voltage 3.3 kV - 33 kV
Secondary Voltage 0.4 kV - 11 kV
Cooling Method ONAN (Oil Natural Air Natural)
Frequency 50 Hz / 60 Hz
Impedance Voltage 4% - 6%
Efficiency Up to 98.7%
Standards IEC, ANSI, IEEE

Applications:

The Oil Immersed Transformer, model number SZ, manufactured by TNNPI, is a highly reliable and efficient Electric Power Transformer designed to meet diverse electrical power distribution needs. Originating from Henan, China, this Electrical Power Transformer is engineered to deliver superior performance in various industrial and commercial applications. With its robust construction and advanced oil-immersed cooling technology, it ensures optimal thermal management and long-lasting operational stability.

This Electric Power Transformer is ideal for use in power generation plants, substations, and distribution networks where high voltage transformation is required. Its oil-immersed design provides excellent insulation and cooling, making it suitable for heavy-duty applications such as industrial manufacturing facilities, mining operations, and large-scale infrastructure projects. The transformer efficiently handles high load demands, ensuring uninterrupted power supply and minimal energy loss.

In urban and rural electrical distribution systems, the SZ model plays a critical role in stepping down high voltage to usable levels, enabling safe and reliable electricity delivery to residential, commercial, and institutional consumers. It is also widely used in renewable energy setups, including solar and wind power plants, where stable voltage regulation is crucial for system efficiency and protection.

The Electrical Power Transformer is certified with CE and ISO standards, guaranteeing compliance with international quality and safety requirements. Customers can purchase this product with a minimum order quantity of just one piece, priced competitively at $71,999.10 per unit. This makes the SZ oil immersed transformer an excellent choice for both small-scale projects and large installations requiring dependable electrical infrastructure.

Overall, the TNNPI SZ Oil Immersed Transformer is a versatile and durable solution for a wide range of electric power transformation occasions and scenarios. Whether for new power grid expansions, equipment upgrades, or emergency replacements, this transformer ensures efficient energy transfer, enhanced system protection, and prolonged service life, making it an indispensable component in modern electrical networks.


Support and Services:

Our Oil Immersed Transformers are designed to provide reliable and efficient performance in a wide range of electrical power applications. To ensure optimal operation and longevity of your transformer, we offer comprehensive technical support and services.

Technical Support:

Our team of experienced engineers and technical specialists is available to assist you with installation guidance, troubleshooting, and maintenance advice. We provide detailed product documentation, including user manuals, installation instructions, and maintenance schedules to help you operate your transformer safely and effectively.

Maintenance Services:

Regular maintenance is crucial for the reliable operation of oil immersed transformers. We offer preventive maintenance services including oil testing and analysis, insulation resistance testing, thermographic inspections, and routine mechanical checks. These services help identify potential issues before they lead to costly failures.

Repair and Overhaul:

In the event of a malfunction or damage, our skilled technicians can perform comprehensive repair and overhaul services. We utilize advanced diagnostic tools and genuine replacement parts to restore your transformer to optimal condition, ensuring compliance with industry standards.

Upgrades and Retrofitting:

To extend the life and enhance the performance of your existing transformers, we provide upgrade and retrofitting solutions. These include improved cooling systems, enhanced insulation materials, and modern monitoring devices to increase efficiency and reliability.

Training and Consultancy:

We offer training programs for your personnel on the proper operation, maintenance, and safety practices related to oil immersed transformers. Additionally, our consultancy services assist in system design, load management, and energy efficiency optimization.

By leveraging our technical support and services, you can maximize the performance and lifespan of your oil immersed transformer, ensuring uninterrupted power supply and protection of your electrical assets.


Packing and Shipping:

Product Packaging: The Oil Immersed Transformer is securely packaged using high-quality, durable materials to ensure safe transportation and handling. Each transformer is wrapped in protective plastic film to prevent moisture ingress and physical damage. The unit is then placed in a custom-fit wooden crate reinforced with steel bands to provide structural integrity during transit. Shock-absorbing materials such as foam or rubber pads are used inside the crate to minimize vibrations and impacts. All packaging complies with international shipping standards to guarantee the product arrives in optimal condition.

Shipping: Shipping of the Oil Immersed Transformer is conducted via reliable freight carriers with experience in handling heavy electrical equipment. The product can be shipped domestically or internationally using sea, air, or land transportation depending on customer requirements and destination. Prior to shipment, all necessary documentation including customs paperwork, certificates of origin, and compliance certificates are prepared and verified. Tracking information is provided to customers for real-time monitoring of their shipment until delivery. Special handling instructions are included to ensure the transformer is transported safely and efficiently.


FAQ:

Q1: What is the model number of this Oil Immersed Transformer?

A1: The model number of this Oil Immersed Transformer is sz.

Q2: Which brand manufactures this Oil Immersed Transformer?

A2: This transformer is manufactured by the brand TNNPI.

Q3: Where is this Oil Immersed Transformer produced?

A3: It is produced in Henan, China.

Q4: What is the minimum order quantity for this product?

A4: The minimum order quantity is 1 piece.

Q5: What certifications does this Oil Immersed Transformer have?

A5: This transformer has CE and ISO certifications.

Q6: What is the price per piece of this Oil Immersed Transformer?

A6: The price is $71,999.10 per piece.


Overall Rating
5.0
Based on 50 reviews recently
Rating Snapshot
5
100%
4
0
3
0
2
0
1
0
All Reviews
I
Ifandro from Bahamas
Sep 9.2025
Clear wiring and convenient maintenance
Review Image
T
TIE XIAOBIN from United States
Jun 13.2025
Lightweight operation, clear markings, strong compatibility—highly recommended!
Review Image
L
Luis from Saint Lucia
Jun 4.2025
Stable equipment operation and reliable quality
Review Image
  • Quality 70 80 160 Mva 110kv 69kv Oil Power Transformer supplier factory
    VIDEO

    70 80 160 Mva 110kv 69kv Oil Power Transformer supplier

    [Product Functions]: Focus on 110kv-350kv medium and high voltage power distribution and 500kva-12500kva capacity output, realizing long-distance power transmission and regional power distribution, ensuring the centralized power supply demand of large industrial equipment and buildings; built-in intelligent oil temperature monitoring and gas alarm system, which can real-time capture equipment operation abnormalities and automatically trigger protection mechanisms to avoid

  • Quality 11kv 20kv 33kv 50Hz/60Hz 100kva 160kva 400kva 1250kva 2000kva 2500kva 3 Phase Oil Immersed Type Power Transformer Manufactures factory
    VIDEO

    11kv 20kv 33kv 50Hz/60Hz 100kva 160kva 400kva 1250kva 2000kva 2500kva 3 Phase Oil Immersed Type Power Transformer Manufactures

    New Electric Power Company's main products include: 10KV to 69KV S11/13/20 series three-dimensional magnetic circuit coil iron core transformers, and SH15 amorphous alloy series power transformers SCB10, SCB11/12/13 series resin insulated dry-type transformers, preinstalled substations (European and American style) high and low voltage switchgear, etc. And can design and produce special transformers and non-standard transformers according to user requirements. The company

  • Quality Single phase Capacity 5 to 333kVA Customizable Voltage transformer Distribution Transformer providing and voltage transformation solutions factory
    VIDEO

    Single phase Capacity 5 to 333kVA Customizable Voltage transformer Distribution Transformer providing and voltage transformation solutions

    Product Description: The Oil Immersed Transformer is a vital component in power distribution systems, designed to provide reliable and efficient voltage regulation for various industrial, commercial, and residential applications. As a power and distribution transformer, it plays a crucial role in stepping voltage levels up or down to meet the specific requirements of electrical networks, ensuring the safe and stable delivery of electricity. This transformer is available with

Contact Us
You Can Contact Us At Anytime!