Oil-Immersed Power Transformer

Product Description:

1. Strong adaptability: It has high temperature resistance and overload capacity, and can operate stably for a long time in harsh environments such as high temperature and high load rate.
2. Exquisite appearance: The product has undergone comprehensive polishing and rust removal treatment, using powder electric spraying technology and equipped with a wide sheet heat sink to ensure that the coating is long-lasting and does not fade.
3. Leak free design: The sealing element is made of acrylic material, and one-time molding technology ensures that the product will never leak. The equipment undergoes positive and negative pressure leak testing before leaving the factory, ensuring reliable quality.
4. Safety and environmental protection design: The materials and processes fully comply with safety and environmental protection requirements, do not release toxic gases, have low smoke concentration during combustion, are non corrosive, and ensure that the equipment is environmentally friendly.

Product features:

1. Low loss design: Adopting a new type of iron core and optimized winding structure design, the no-load loss of traditional transformers is reduced by more than 20%, and the load loss is reduced by more than 10%, significantly improving energy efficiency.
2. Low noise operation: Using high-quality silicon steel sheets and optimized magnetic circuit design, the noise level is significantly reduced, meeting the environmental requirements of modern cities and residential areas.
3. High reliability: The winding and body are carefully designed to have strong short-circuit resistance. Using high-quality insulation materials and high-temperature resistant transformer oil to ensure safe operation and extended lifespan.
4. Environmental protection and energy conservation: The insulation oil adopts pollution-free and recyclable environmentally friendly insulation oil. The product materials are recyclable, with excellent sealing performance, no leakage, and maintenance free.
5. Strict quality inspection: Transformers must undergo rigorous testing in accordance with national standards GB6450-1986 and IEC 60076 before leaving the factory, including multiple key items such as partial discharge, lightning impulse, noise, etc., to ensure the high quality and reliability of the product.

Main parameters:

Voltage level: High voltage side 10kV~35kV, low voltage side 0.4-0.69kV

Capacity range: 30kVA~8000kVA

Cooling method: Oil immersed self cooling (ONAN)

Connection group: Dyn11 or Yyn0

Execution standards:

GB 1094 Power Transformers

GB/T 6451 Technical Parameters and Requirements for Oil immersed Power Transformers

GB/T 10228 Technical Parameters and Requirements for Power Transformers

IEC 60076 Power Transformers

IEC 60354 Load Guide for Transformers

Our technological advantages:

1. Shanghai Zhiyou International's leading R&D technology cloud platform

Integrating electromagnetic optimization design, parametric drawing, performance analysis and structural optimization, automatic drawing, and other functions of transformers to achieve resource sharing in transformer design, as well as searching, modifying, and version control of various data information.

2. Simulation analysis

The current field, temperature field, electric field, leakage magnetic field, wave process, and short-circuit force of transformers. The research and design of each series of products are carried out through simulation analysis of flow and temperature fields to determine the average temperature rise of the coil and the hot spot temperature seat, ensuring product performance.

3. Smart operation and maintenance platform

By collecting key data such as temperature, current, voltage, vibration, and grid harmonics of transformers, online power quality analysis, fault alarms, and installation on mobile phones can be achieved.

 

Use Scenarios

Application in Urban and Rural Power Distribution Networks
In both urban and rural utilities, this oil-immersed transformer operates as a critical distribution transformer ensuring steady voltage transformation and power delivery. It is specifically designed to tolerate fluctuations typical in such networks and to maintain efficiency under varying load conditions. Its leak-proof design and compliance with GB 1094 and IEC 60076 standards safeguard the transformer’s performance and safety. Integration with power pole transformers and medium voltage transformers in substations allows utilities to minimize downtime and optimize grid stability. This reliability contributes significantly to maintaining uninterrupted energy flow to end consumers and industrial clients.

Role in Railway Traction and Industrial Power Systems
Within railway traction systems and heavy industrial power applications, this oil-immersed transformer supports the stable supply of electrical power critical for operational continuity. Its capacity to operate efficiently with high short-circuit resistance and low losses is essential for traction transformers and high voltage transformer configurations in direct current and alternating current systems. Compliance with strict international technical standards ensures safe, reliable performance under dynamic electrical loads encountered in transportation and industrial sectors. The transformer integrates seamlessly with related electrical equipment suppliers’ offerings, providing a key component for robust infrastructure and power engineering solutions.


FAQ

What voltage ranges are available for the Oil-Immersed Power Transformer?
The power transformer supports a high voltage side range of 10kV to 35kV and a low voltage side range from 0.4kV to 0.69kV. This flexibility suits various industrial and power distribution applications, ensuring compatibility with different network requirements.

Can the specifications of the Oil-Immersed Power Transformer be customized?
Yes, Shanghai Zhiyou offers customization for transformers including voltage levels, capacity (30kVA to 8000kVA), and connection groups like Dyn11 or Yyn0. Clients can request specific technical parameters to match their system needs precisely.

How does the transformer ensure leak-proof performance under harsh conditions?
The transformer uses a leak-proof acrylic sealing with one-time molding technology, and each unit undergoes both positive and negative pressure leak tests. This robust design prevents oil leakage, ensuring safe and maintenance-free operation.

What installation and maintenance considerations apply to these Oil-Immersed Transformers?
These electrical transformers feature oil-immersed self-cooling (ONAN), requiring standard installation on stable foundations with proper ventilation. Thanks to their durable sealing and premium insulating materials, they offer extended service life with minimal routine maintenance needed.

Ordering Notice:

1. Please provide detailed parameters of the product.
2. Please provide us with as much product related information as possible regarding the product specifications, product drawings, product nameplates, product photos, etc. that you need to order, so that we can provide you with a faster and more accurate quotation.
3. Please provide the product specifications, product drawings, product nameplates, product photos, etc. that you need to order, send email to: shanghaizhiyou@gmail.com We will reply as soon as we receive the email.
4. You can also quickly contact our sales manager Yang through the following contact information: WeChat：+ 86 13122066665 or WhatsApp:+ 86 189 3091 2328.

We are willing to serve you with our professionalism, sincerity, and integrity.