+86 18988528466 [email protected]
Three Phase 11kV Oil Immersed Transformer
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Foshan Noah Electrical Co., Ltd can help you customize transformers of various voltages, like 230V, 380V, 6.6KV 10kV, 11kV, 15kV, 20kV, 33kV, 35kV... ...to 110kV, etc. Our products are sold to countries all over the world. We are honored to offer the best quality and service for you. Please let us know your needs, we will recommend the right item for you.

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product information

We apply new design, structure and optimize insulation technology, as well as improve the mechanical strength and anti short circuit ability. The core is made of high quality cold rolled silicon steel with low loss and noise, which help economize energy. Items listed in the table below just show you part of the regular transformer, but we can customize more capacities than it. So for more information, please feel free to contact us.

S11 Series 30~1600kVA Three Phase 11kV Oil Immersed Transformer
Technical Specification

Rated Power High Voltage(kV) Tapping Range Low Voltage(kV) Vector Group No-load
Load Loss
30kVA 11kV









0.4kV Dyn11



100 630 1.5 4.0
50kVA 130 910 1.3
63kVA 150 1090 1.2
80kVA 180 1310 1.2
100kVA 200 1580 1.1
125kVA 240 1890 1.1
160kVA 280 2310 1.0
200kVA 340 2730 1.0
250kVA 400 3200 0.9
315kVA 480 3830 0.8
400kVA 570 4520 0.8
500kVA 680 5410 0.8
630kVA 810 6200 0.6 4.5
800kVA 980 7500 0.6
1000kVA 1150 10300 0.6
1250kVA 1360 12000 0.5
1600kVA 1640 14500 0.5


Widely used in lighting, machine tool electrical equipment, mechanical and electronic equipment, medical equipment, rectifier device, military, aerospace, etc. Main products involve power quality, power conversion, instrumentation, radio and television communication, transportation, renewable energy, industrial manufacturing, environmental hygiene, medical security, plasma applications and other industries.

Product advantages

1. The tank applies fully sealed structure with corrugated tank to prevent air and water contacting with the transformer, reduce the degree of oil aging, extend the life of transformer.The volume change of thermal expansion and cold contraction of transformer oil can be adjusted by elastic deformation of corrugated sheet.
2. The product structure is outdoor type, with high level of anti-fouling. There is no need to replace the transformer oil during the normal service period, so as to truly achieve maintenance free and ensure the safe operation and reliability of the power grid.
3. The transformer has pressure release safety device, when a transformer faulty pressure is too high. It can be safely released reliably through the pressure relief valve to avoid the expansion of the accident.
4. Product seal form: welding along the tank or bolt screwing
5. Oil immersed transformer can be used outdoors or indoors.

Project Cases

Our Service

● Listen carefully and clearly to customer specific requirements for products. For some customers at the beginning, they are not clear what exactly they are looking for, we will recommend the items after we learn the necessary core parameters from the client and provide them detailed parameters, pictures and other product information to ensure that products fully meet the requirements.

● Our products can be customized, and the MOQ is one unit. Please just let us know the details of the item you need.

● We have professional QC team to make 100% inspection before the delivery.

● Within the period of guarantee, if there are quality problems caused by manufacturing, we will take responsibility. If the quality problem is caused by other reasons, our company will actively assist to deal with, provide necessary technical support, solve the problem for customers, with the fastest speed to minimize the loss caused by the accident.

● Assist customers to install and debug major equipment and provide on-site technical services, send personnel to the site if necessary, until the equipment is put into operation safely.

● Within the guarantee period stipulated in the contract, if the product is damaged or faulty due to defects in design, manufacturing or materials, our company guarantees to provide timely solutions to customers upon receipt of notice.

● Strictly fulfill the relevant terms of the contract, and constantly improve the quality of service.

High Quality

Passed ISO9001:2015, CE,TUV, type test reports, certificates of patent,etc.

Our Advantage

● We have more than 14 years transformer manufacturing and exporting experience.

● We make the transformer of high quality raw materials, and the price is reasonable.

● We have the best transformer designing, producing, selling and quality control team in a bid to offer you the best product and service.

● We accept OEM/ODM order and can customize the accurate item the customer need.

● We want to build up a long term business relationship with you, so we will try our best to make everything perfect for you.

All prototype products have to go through 4 checks in the whole process:

1. Raw material inspection

2. In processing inspection

3. Final inspection

4. Outgoing inspection

Production Equipment

Test Equipment


Q1. Can I use my company’s logo?

A1. Sure, we can offer OEM/ODM service.

Q2. What is the MOQ?

A2. MOQ=1 unit

Q3. What is the delivery time?

A3. It depends on the order quantity. Usually it takes about 15-20 days to make the customized item with small quantity.

Q4. What is the packing material?

A4. Plywood box.

Q5. Do you have export experience?

A5. Sure. Our main markets are South Asia, Africa, Europe, South America and etc. Welcome to be our agent in your country.

Q6. What kind of certificate do you have?

A6. We have ISO9001:2015, CE,TUV, type test reports, certificates of patent,etc.

Send your message to us:
  • +86 18988528466 / +86 757 82810267

  • [email protected]

  •  Fenjiangbei Road No.91 Foshan, Chancheng Guangdong China

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  • Emily Liang 10:12 AM, Today
    Please note that from the year 2020 on, our company's original logo NORYA will be changed to FSNOAH.