Basic Info.
Product Description
Product introduction
This product conforms to the national standard gb1094.1-2013 power transformer and GB / t6451-2015 three phase oil immersed power transformer technical parameters and requirements. This product has adopted a series of major reforms in material, technology and structure, so that the electrical performance of the product can reach the advanced level of similar products. With the characteristics of high efficiency and low consumption, it can save a lot of power consumption and operation costs, and has remarkable social benefits. It is a new product promoted by the state. It is also one of the more popular products for users.
Main Functions And Features
1. The low-voltage winding is of cylindrical or spiral structure, with high mechanical strength and good short-circuit resistance.
2. The corrugated oil tank is adopted to replace the oil conservator. The oil tank cover and the oil tank are all welded along the edge or fastened with bolts, thus prolonging the service life of the transformer oil.
3. After oil removal, embroidery removal and phosphating treatment, the product is sprayed with three times of primer and one time of finish paint inside and outside. The product is salt fog proof, damp heat proof and fungus proof, which can meet the special requirements of metallurgy, petrochemical system and wet and polluted areas. It is beautiful and reliable.
4. The transformer oil tank is fully sealed, and equipped with pressure reducing valve, signal thermometer, gas relay, etc according to the standard requirements to ensure the safe operation of the transformer.
5. This series of products are beautiful in appearance, small in size, and can reduce the installation area. It is an ideal maintenance-free distribution product.
Transformer Structure
10kv to 22kv Transformer Structure
30kv to 35kv Transformer Structure
| Rated Capacity (kVA) | H.V. winding (kV) | Tapping range of high voltage (%) | L.V. winding (kV) | Vector Group | No-Load Loss(W) | Load Loss (W) | No-load current (%) | Short-circuit impedance (%) |
| 50 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 | 33 | ±5% ±2x2.5% | 0.4 | Dyn11 Yyn0 | 130 185 215 225 270 320 385 465 545 665 785 920 1120 1350 1590 1890 | 1200/1140 2010/1910 2370/2260 2820/2680 3320/3160 3950/3760 4750/4530 5740/5470 6910/6580 7860 9400 11500 13900 16600 19700 23200 | 1.3 1.10 1.10 1.00 1.00 0.95 0.95 0.85 0.85 0.65 0.65 0.65 0.6 0.6 0.55 0.55 | 6.5 |
Technical parameters of S13 10kV oil-immersed transforme
| Rated Capacity (kVA) | Type | Vector Group | No-Load loss (kW) | Load loss (kW) | Short-circuit impedance (%) |
| 30 | S13-30/10 | Y,yn0 | 0.08 | 0.63/0.6 | 4 |
| 50 | S13-50/10 | 0.1 | 0.91/0.87 | ||
| 80 | S13-80/10 | 0.13 | 1.31/1.25 | ||
| 100 | S13-100/10 | 0.15 | 1.58/1.5 | ||
| 125 | S13-125/10 | 0.17 | 1.89/1.8 | ||
| 160 | S13-160/10 | 0.2 | 2.31/2.2 | ||
| 200 | S13-200/10 | 0.24 | 2.73/2.6 | ||
| 250 | S13-250/10 | 0.29 | 3.2/3.05 | ||
| 315 | S13-315/10 | 0.34 | 3.83/3.65 | ||
| 400 | S13-400/10 | 0.41 | 4.52/4.3 | ||
| 500 | S13-500/10 | 0.48 | 5.41/5.1 | ||
| 630 | S13-630/10 | 0.57 | 6.2 | 4.5 | |
| 800 | S13-800/10 | 0.7 | 7.5 | ||
| 1000 | S13-1000/10 | 0.83 | 10.3 | ||
| 1250 | S13-1250/10 | 0.97 | 12 | ||
| 1600 | S13-1600/10 | 1.17 | 14.5 |
Note:The above are some product technical parameters, if you have any questions, please contact us
Our Workshop
Production equipment
Company Introduction 
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.
3.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!
HFY Certificate 
Our 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.
Pre-sale service:
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
After-sales service:
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
The Finished Project
Team Show
FAQ
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.