S22 Series 10kv 3-Phase Oil-Immersed Transformer Electric Transformer Equipment

• Customization: Available
• Application: Power
• Phase: Three
• Model NO.: Oil-Immersed Transformer
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: GB/T3906-2020
• Frequency Characteristics: High Frequency
• Shape of Core: Ring
• Model: S22/20/13
• Capacity: 10–2500 kVA
• Material: Copper / Aluminum
• Power Frequency Withstand Voltage: 35kv
• Transport Package: Wooden Box
• Trademark: zhongtie
• Origin: China
• HS Code: 8504220000

Product Description

Product Description

Product  Overview

The oil immersed transformers produced by the company include 10kV fully sealed distribution transformer series, 10kV, 35kV power transformer series, and 10kV, 35kV new wind power, photovoltaic, and energy storage new energy transformer series, with a wide variety and complete specifications.
By optimizing and innovating the design of the product's iron core and winding structure, using new materials and processes for research and application, combining technological innovation with technology introduction, advanced production equipment, standardized manufacturing processes, and complete measurement methods, high-quality products are guaranteed to have the advantages of low loss, low noise, and high efficiency, and can achieve good energy-saving and emission reduction environmental effects. The performance indicators meet various standards and reach advanced levels both domestically and internationally.

10kV fully sealed distribution transformer, generally with a small capacity. The volume change of transformer product oil is automatically adjusted and compensated by the elasticity of the corrugated sheets in the corrugated oil tank. The transformer oil and air are completely isolated to prevent and slow down the deterioration of transformer oil and insulation aging. Normal operation without maintenance enhances operational reliability.
The 10kV and 35kV power transformer series products are designed with advanced technology, and have undergone significant improvements and enhancements in materials, structures, and processes. The products have good performance, strong short-circuit resistance, compact and beautiful appearance, and reliable operation.
10kV and 35kV new energy transformers can adapt to different types of renewable energy and perform effective power conversion, making them particularly important in the field of new energy; The new energy transformer is equipped with an intelligent monitoring system that can monitor power flow in real time and warn of faults, improving the reliability and safety of the system; New energy transformers can help reduce greenhouse gas emissions and promote sustainable development.

10KV Parameter	10KV Oil-Immersed Transformer
Model	S22/20/13
Capacity	10–2500 KVA
Material	Copper / Aluminum
Voltage Class	10KV
Phase	3-phase
Connection Group	Dyn11 / Yyn0
Insulation Medium	25# / 45# Oil
Energy Efficiency Class	NX1 / NX2 / NX3 or None
Efficiency Standard	GB20052-2024
Insulation Class	—
Application	Outdoor
Cooling Method	ONAN
Frequency	50Hz
Environmental Class	—
Climate Class	—
Fire Behavior Class	—
Power Frequency Withstand Voltage	35KV
Lightning Impulse	75KV (Full Wave) 85KV (Chopped Wave)
Standards	GB/T1094.1-2-2013 GB/T1094.3-2017

35KV Parameter	35KV Oil-Immersed Transformer
Model	S22/20/18
Capacity	10–2500 KVA
Material	Copper / Aluminum
Voltage Class	35KV
Phase	3-phase
Connection Group	Dyn11 / Yyn0
Insulation Medium	25# / 45# Oil
Energy Efficiency Class	NX1 / NX2 / NX3 or None
Efficiency Standard	GB20052-2024
Insulation Class	—
Application	Outdoor
Cooling Method	ONAN
Frequency	50Hz
Environmental Class	—
Climate Class	—
Fire Behavior Class	—
Power Frequency Withstand Voltage	85KV
Lightning Impulse	200KV (Full Wave) 220KV (Chopped Wave)
Standards	GB/T1094.1-2-2013 GB/T1094.3-2017

Main Production

Company Profile

ABOUT US

Xuzhou Zhongtie Electric Group Co., Ltd. was established in 1992 with the investment of the former Railway Bureau. It has three subsidiary companies under its umbrella, with assets amounting to hundreds of millions of yuan. These subsidiaries are located in Xuzhou National Economic and Technological Development Zone and Jianye District, Nanjing.
The group features strong technical capabilities and first-class products. It serves as a leading enterprise in the electrical industry, a national key high-tech enterprise, and a core supplier to both the State Grid and China Southern Power Grid. Equipped with advanced production and testing facilities, it mainly engages in the production of complete electrical products such as 35KV ring main units.
The company holds qualifications like the second-level professional contracting qualification for power transmission and transformation projects. Its business scope encompasses power engineering survey and design, project construction, and new energy services. Its sales network extends to more than twenty provinces, municipalities, and autonomous regions. The products are applied in various fields including the State Grid, and the company has participated in major grid renovation projects. It has been honored with titles such as the National Customer Satisfaction Enterprise.
Upholding the tenet of "Surpassing Ourselves, Striving for Excellence, Passing on Light, and Serving Society", the group aims to meet customers' needs. It is eager to collaborate with all sectors of society and move forward together towards a brighter future.

Product Advantage

Company Advantage &Our Certificate

Exhibition

Packaging & Shipping

FAQ

Q1. Can I get a sample?  
Yes, absolutely. We understand the importance of evaluating product quality and performance before purchasing transformers, so we are happy to provide samples for your comprehensive testing and trial use. This allows you to deeply understand the advantages and features of our products. Please note that samples are provided at a prototyping cost lower than the production cost, and specific details can be discussed further.  

 Q2. Can I use my own logo or design on the product?  
Certainly. We offer professional OEM/ODM customization services, supporting end-to-end customization from product appearance design to performance parameters. Whether you need to incorporate your brand logo or unique design concepts, we can precisely implement them to create transformers that meet your brand positioning and ensure reliable quality.  
Q3. Do you have a factory?  
Yes, we have a modern professional transformer production base in Jiangsu. The factory covers an area of 60,000 square meters, equipped with industry-leading production equipment, advanced processing technologies, and a standardized quality control system. We sincerely invite you to visit our factory to inspect the production process, quality control standards, and R&D capabilities, and experience the core competitiveness of a professional manufacturer firsthand. We have provided high-quality OEM/ODM services to global clients for many years, helping them achieve differentiated market positioning. 

Q4. What is your factory's production capacity?  
The factory has efficient and stable mass-production capabilities. Taking conventional power transformers as an example:  
Monthly output: 300 units of 10kV standard-capacity power transformers;  
Monthly output: 200 units of 35kV power transformers.  
We continuously optimize production processes, upgrade equipment, and innovate technologies to flexibly respond to diverse market demands and ensure delivery efficiency.  
Q5. When will the goods be delivered?  
Conventional in-stock products: Shipped within 3 working days after order confirmation;  
Customized products: Produced and shipped within 10-20 working days agreed upon based on customization complexity.  
Additionally, we collaborate with multiple premium logistics partners to provide real-time tracking services, ensuring goods are delivered safely and on time.