6kv 11kv 25kv 35kv Step Down Oil Cooled Transformer with Saving Energy

• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio, Wind Power
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, UL, ISO9001, CCC, Test Report
• Model NO.: s9
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: U
• Brand: Hfy
• Transport Package: Wooden Case Packages
• Specification: 1CBM to 15CBM
• Trademark: HFY
• Origin: China
• HS Code: 8504210000
• Production Capacity: 20000

Product Description

10kv series Oil-immersed transformer 

Primary Votage        6KV 10Kv 11Kv
Secondary voltage  0.4KV
Ccapacity: 30KVA -31500KVA




Distribution transformers for industrial and mining enterprises and civil supply and distribution systems, one of the important equipment, it will 10 (6) kV or 35kV network voltage down to 230 / 400V bus voltage users. Such products are suitable for AC 50 (60) Hz, three-phase maximum rated capacity of 2500kVA (single-phase maximum rated capacity of 833kVA, generally do not recommend the use of single-phase transformers), can be used indoors (outside), capacity 315kVA and below Can be installed on the pole, the ambient temperature is not higher than 40 ºC, not lower than -25 ºC, the highest average daily temperature of 30 ºC, the highest annual average temperature of 20 ºC, relative humidity of not more than 90% (ambient temperature 25 ºC), altitude Not more than 1000m. If inconsistent with the above conditions of use, GB 16450-86 should be the relevant provisions for the appropriate fixed-point adjustments.


Oil-immersed transformer
1. Non-closed type oil-immersed transformer: the main S8, S9, S10 and other products, widely used in industrial and mining enterprises, agriculture and civil construction.
2. Closed-type oil-immersed transformer: mainly S9, S9-M, S10-M and other products, mostly used in oil, chemical industry, more oil, more chemical substances place.
3. Hermetically sealed oil-immersed transformer: mainly BS9, S9-, S10-, S11-MR, SH, SH12-M and other products can be used in industrial and mining enterprises, agriculture, civil construction and other places with distribution purposes.

Performance characteristics

1. Oil-immersed transformer low-voltage windings in addition to small capacity with copper wire, copper foil are generally used around the cylinder structure; high-voltage winding multi-layer cylindrical structure, the ampere-turns of the winding distribution, leakage magnetic Small, high mechanical strength, anti-short circuit ability.

2. The core and winding their own use of fastening measures, height, low voltage leads and other fastening parts are with self-locking lock nut, using the structure does not hang the heart, can withstand the transport of Britain.

3. The coil and the core vacuum drying, transformer oil vacuum oil and oil filling process, the moisture inside the transformer to a minimum.

4. The fuel tank using corrugated sheet, it has a breathing function to compensate for the temperature change caused by the volume of oil changes, so the product does not conserve oil tank, obviously reducing the height of the transformer.

5. Due to the corrugated sheet to replace the conservator, the transformer oil and the outside world, thus effectively preventing the oxygen, water and lead to the decline in insulation performance.

6. According to the above five performance, to ensure that the oil-immersed transformer in normal operation does not require oil change, greatly reducing the transformer maintenance costs, while extending the life of the transformer.


Application 

This product is widely used in urban and rural power grid construction and renovation projects. This product is especially suitable for areas where there is insufficient power and load fluctuations and where daily maintenance is difficult. Because the transformer adopts a fully sealed structure to prevent the transformer oil from coming into contact with the air, it can operate in a humid environment and is an ideal power distribution equipment in urban and rural distribution networks
 

Transformer Structure
Technical data



OUR SERVICE:
1.quick response in before sales period help you got order.
2.excellent service in production time let you know each step we made.
3.reliable quality solve you after sale headache.
4.long period quality warranty ensure you can buy without hesitate.

WHY CHOOSE US:
 1.  One-stop supplier globally.
 2.  More than 10 years professional experiences in electrical appliance industry.
 3. We offer professional online technology support for perfecting your electrical solution free.
 4.  Experienced sales service and suggestion.
 5.  All the products with accessories under strict quality control and final inspection before shipping.
 6.  We can assure the powerful competitive price and reliable quality products.
 7.  Most competitive shipping rate from our own shipping forwarder.
 8.  Warranty assurance: 24 month
 9.  Whatever big or small order, we can provide you one-to-one service.




ATTENTION:
1.The payment term: We accept TT,30% deposit and 70% balance paid before goods delivery.
2.The delivery time: Usually it will take about 15-20 days.
3.The standard of package: Usually use strong plywood case for protection.
4.The material of transformer: We have two types, one is with copper and another one is with aluminum. It depends on your requirement. .
5.The logo: OEM is OK.
6.Warranty: in 12 month since BL date


Company Introduction 

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. .
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!
HFY Certificate 

Our Services
1.Pre sale service A. make technical solution B. send quotation, technical data sheet and drawing prepare power transmission plan, testing plan and shipment plan

2. In sale service supervise the manufacturing schedule totally in accordance with the plan b.    send photos to customer during every manufacturing process(hold point) c.    inform the customer one week before testing. d. quick response within 12 hours any time.

3. After sale service
a.All parts are under Two Years Warranty with defects from manufacturer. All spare parts and component can be offered for free from the original manufacturer or HFY.
b. Training We will provide free training to your technician free of charge at our factory site in Qingdao, China. The total training period would be 2 working days. All travel and related expensed would be at the purchaser's expense.
c. Technical Documents: Original operation and service manuals, the service manual is completed with wiring diagram, block diagram and trouble shooting information.
d. Installation Usually, clients can do the installation and operation by themselves when following the detailed English user manual. If clients want our technician do this work, please read the following terms: The initial installation is not included with the professional HFY team member.
All installation with the Hengfengyou team must be scheduled at least 4 weeks in advance before actual trip taken. All necessary connectivity must be ready prior the service being scheduled.
While Hengfengyou team member arrives at the site for a complete and final installation, two days training course will be provide to the customer for operation and maintenance procedure. The initial installation is provided within 5 working days excluding travel days.
The actual installation days may vary, based on different machine mode. Each day of working hour consist at 8 working hours. Any additional day will be charge according to our service fee listed below.
When initial installation is being called for the Hengfengyou team required, the surcharge will be made in advance by the purchase at US$100/person/day plus all travel expenses. Travel expenses; local and destination transportation charges (air, train, ferry, bus, taxi or any means of transportation required to arrive to/from destination); accommodation (minimum of 3 star hotel facility) and 3 daily meals.

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.