35KV oil-immersed power transformer, S11-800KVA oil-immersed transformer customization
As the most widely used power facility, power transformers have a wide variety of types and are of great significance to energy conservation and emission reduction. The S13 fully-sealed oil-immersed power transformer is currently the main selection product for power distribution equipment, with significant energy-saving effects. At present, mainstream distribution transformers generally use S13 laminated core power transformers. It adopts a fully oil-filled sealed type, no oil conservator, and a corrugated sheet box structure. The volume of the transformer changes due to changes in temperature and load, which is completely adjusted by the corrugated oil tank. Its no-load loss is much lower than that of S9, and it is resistant to lightning impact It has strong short-circuit resistance, obvious energy-saving effect, and reduces the overall size of the transformer.
The S13 transformer is made of high-permeability oriented silicon steel sheet with a thickness of 0.27-0.30mm and a unit iron loss of 1w/kg, while the new S9 type is an ordinary silicon steel sheet with a thickness of 0.30-0.35mm and a unit iron loss of 1.20 -1.55w/kg. The S13 distribution transformers produced by our company all use 30P series high-permeability oriented silicon steel, using foil-wound coils and new insulating materials and processes. The product is resistant to high temperature, impact, and fully sealed structure design to ensure the stability of transformer oil quality It prolongs the maintenance cycle. At the same time, the integral fuel tank composed of corrugated fin radiator is produced by phosphating and multi-layer anti-rust spraying process, which has good weather resistance.
2.Main Functions And Features
1. The transformer core is made of imported high-quality cold-rolled silicon steel sheet, which greatly reduces no-load loss and no-load current. The core is tightly bound to ensure the compactness and reduce noise.
2. The high and low voltage windings are made of oxygen-free copper. The low voltage winding of 500KVA and below is of double-layer cylinder structure, of 630kVA and above adopt double helix or four helix structure. High-voltage winding adopts multi-layer cylinder structure.
3. Dyn11 is used in the transformer connection group to reduce the influence of harmonics on the power grid and improve the quality of power supply.
4. The transformer is a fully sealed structure, with three coats of primer and one coat of finish paint applied on the inner and outer surfaces. The product is salt fog proof, moisture proof and fungus-proofing, beautiful, durable and reliable
5. The measured noise value is lower than the standard and maintenance free under normal operation.
Technical parameters of 33kV oil-immersed transformer
Technical parameters of S13 10kV oil-immersed transforme
of high voltage
|Load loss (kW)||Short-circuit impedance|
Note:The above are some product technical parameters, if you have any questions, please contact us
Conditions of Use
1.The maximum ambient air temperature shall not exceed 40°C, and the minimum shall not below -25°C;
2.The altitude shall not exceed 1000m. If special customized transformers and low-voltage components are used, the altitude can reach 4,000m;
3.The vertical inclination is no more than 5°, and no violent vibration and impact;
4.The air humidity is not more than 90% (25°C);
5.No gas and conductive dust that will seriously affect the insulation of transformer,no explosion hazard and corrosion of electrical components;
6.Outdoor wind speed shall not exceed 35m/s;
7.If service conditions beyond the above, specially customized product is available.
1.Qingdao Hengfengyou Electrical Engineering Co., Ltd. (hereinafter referred to as Hengfengyou) is a large-scale enterprise group with electricity transmission and distribution as its main business,which integrates scientific research, development, manufacturing and trade. After 30 years rapid economy development in China, Hengfengyou now is a leading R & D, manufacturing and service base for MV , HV and ultra-HV power distribution equipment in China. At present,we have 50 senior technicians and more than 300 employees, with a complete sales and service system. Our products sell well at home and abroad, and our annual output value adds up to $100 million. .
2.At present, Hengfengyou has 6 wholly-owned and holding subsidiaries, which are respectively engaged in R & D, manufacturing and service of transformers, switchgear, package/unit substation, pole-mounted high-voltage vacuum circuit breakers, new energy, and electrical engineering. For a long time, the company has maintained close technical exchanges and cooperation with domestic and foreign universities, scientific research institutes and electric power enterprises. Hengfengyou independently designed and developed SCB series dry-type transformer and SC series oil immersed transformer. Our product performs with high operation efficiency, and obvious energy conservation. The overall performance index reaches the world's advanced level. The company also maintains long-term strategic partnership with Schneider, ABB, Simens, Chint and other electric suppliers. We absorbed foreign advanced experience in electrical equipment production and independently designed and developed a series of substation equipment, which realized the automation and intelligence of the substation, and of which the performance has been highly recognized by the user at home and abroad. In the following five years, the company plans to build an intelligent workshop with an annual output of 100000 transformers.Then,the intelligent robot will replace 80% of the existing labor force, which will greatly improve the production efficiency, lower production cost, and produce more energy-saving, environmentally friendly, more safe and reliable the product for the users!
Packaging & Shipping
For the shipping , we accept EXW, FOB and CIF terms, you can use your own shipper or ours.
Fasten: To use steel wires to fasten the large products in container to make sure it is stable enough.
HFY Certificate and Services
We have established strict working procedures and standards in the development, production, sales and after-sales of electrical products, so as to provide customers with first-class products and the best service.
1. Our electrical engineer has more than 10 years of working experience
2.Our workshop workers are all skilled industrial workers who have received three months 'pre-job training
3. Our sales team has been extensively trained by management consultants to provide professional solutions for customers
4. Our technical team can provide customers with 24-hour technical support world wide
5. Our customer service team ensures that orders are delivered on time.
1.ISO certified excellent Manufacturer
2. Third-party authoritative certifications: SGS, CE, CB, CNAS, CQC, CCC, etc
3. Flexible payment: T/T, LC, O/A
4. Sufficient inventory, fast delivery time and long validity of the price
5. The whole process of picture tracking can be realized in production and transportation
6. Experienced professional sales team and a strong technical team
7. Sincerely invite customers to visit the company for guidance
1. If there is any quality problem after receiving the goods, you can return the goods free of charge or ship new products
2. We provide our customers with a 2-year product warranty
3. Provide 24-hour, 365-day technical guidance worldwide
4. The VIP customers enjoy our promotional activity
8.The Finished Project
we are the large-scale electric complete sets of manufacturers in China, specializing in oil-immersed transform ers, dry-type transformers, high-voltage Cabinets, low-voltage cabinets and substa tion manufacturing specialized electrical enterprises. We can provide good quality and pretty competitive price.
Q1: Is OEM/ODM available?
A1: Yes, it is! Our products can be Customized. We have design and engineer teams,we can customize products according to customers' drawing or requirements.
Q2: What's your MOQ?
A2: One Set.
Q3: How is the delivery time?
A3: It depends your order quantity and it normally takes about 15-20 days.
Q4: How do you control the quality?
A4: We have QC team comply with TQM to ensure the quality. Each step is in compliance to the standards. At the same time, we will take photos and shoot video for you if you need.Every product will be fully assembled and carefully tested before packing and shipping.
Q5: How long is the warranty?
A5: Within one year from the sale date, if there are any accessory problems, you just provide the photos of damaged accessory, then we will provide free accessory. According to the number of products, we will provide easily damaged accessories for free. We also can provide technical support if you need.