Three Phase Cast Resin Power Distribution Dry Type Transformer for Offshore Wind

• Customization: Available
• Application: Power
• Phase: Three
• Model NO.: PEC-S-10500/35/4.95
• Core: Core-type Transformer
• Cooling Method: Dry-type Transformer
• Winding Type: Two-winding Transformer
• Certification: CE UL KEMA ASTA Certificates
• Usage: 10500KVA Cast Resin Transformer
• Frequency Characteristics: High Frequency
• Shape of Core: Customization
• Brand: Pearl Electric
• Transformer Type: Cast Resin Dry Type Transformer
• Rated Capacity: 10500kVA
• Rated Voltage(Hv/LV): 35/4.95kv
• Frequency: 50/60 Hz
• Impedance: 4~6%
• Tapping Range: +2X2.5%/-2X2.5%
• Cooling Way: AN/AF
• Vector Group: Dyn11
• Winding Material: Copper
• Core Materials: Silicon Steel
• Insulation Level: as Per IEC Standard
• Temperature Rise: 125K
• Accessories: Fans, Enclosure
• Optional Protective Enclosure: IP00/IP20/IP23/Cutomized
• Applied Standards: IEC60076-11
• Transport Package: Wooden Pallet, Wooden Case
• Specification: As per manufacturer's standard design
• Trademark: Pearl Electric(PE)
• Origin: China
• HS Code: 850434000
• Package Size: 1.00cm * 1.00cm * 1.00cm
• Package Gross Weight: 1.000kg

Product Description

Offshore Wind Power Transformer: The "heart" of Deep-sea Energy Transmission

 

Product Description

The is a specially designed to be installed inside the nacelle of a wind turbine. It is a key and unique device in the power transmission system of an offshore wind farm.
The voltage generated by wind turbines is relatively low (usually in the range of 690V to 3.3kV or higher), and the nacelle transformer greatly increases this voltage to the medium voltage level. The main purpose of increasing the voltage is to greatly reduce the loss of electricity during long-distance transmission. This is crucial for offshore wind farms because the distance from the wind turbine to the offshore booster station (and then to the land) may be very far (tens or even hundreds of kilometers).

Due to the installation on the top of the nacelle with limited space, motion (yaw, pitch), large vibration and harsh environment, the offshore wind turbine nacelle transformer needs to have the following special designs:
Space limitation: Nacelle space is extremely valuable, and the transformer must be designed to be very compact to minimize the impact on the nacelle layout and center of gravity.
Weight limitation: Overweight transformers will increase the load on the nacelle and affect the tower and foundation design. Special materials and optimized designs are usually used to reduce weight.
Strict testing: high protection level, strong anti-corrosion, temperature and humidity control, efficient cooling, small space, high heat density.
Electrical performance: high short-circuit withstand capacity, low loss, low noise, overvoltage protection
Intelligent diagnosis: Combined with the SCADA system, early fault warning and status evaluation can be achieved, supporting predictive maintenance and reducing unnecessary offshore operation and maintenance trips.

Description about Three Phase Dry Type Voltage Power Distribution Transformer
A dry type transformer, also known as an air-cooled transformer, is a type of transformer that utilizes air or gas instead of liquid (such as oil) for insulation and cooling purposes. This transformer design does not immerse its core and windings in insulating oil, making it distinct from oil-filled transformers.

Types of Dry Type Transformers:

1. Cast Resin Dry Type Transformer (CRT):
   • Uses epoxy resin to encapsulate windings, protecting them from moisture, dust, corrosion, and other environmental factors.
   • Suitable for high humidity areas, indoor installations, and fire-risk areas due to its non-hygroscopic, non-inflammable, and maintenance-free nature.
   • Available in ratings from 25 kVA to 12,500 kVA, with an insulation class of F (90°C temperature rise).
2. Vacuum Pressure Impregnated Transformer (VPI):
   • Impregnates windings with class H polyester resin under vacuum and pressure, eliminating air gaps or voids in the insulation.
   • Enhances mechanical strength, dielectric strength, and thermal stability.
   • Suitable for outdoor installations, seismic events, and temperature fluctuations due to its robust construction, moisture-resistant enclosure, and low thermal expansion coefficient.

, an experienced transformer manufacturer since 1958, design and produce various cast resin dry type transformer for different application include rectification transformer, marine/offshore oil platform transformer, rectification traction transformer, Transformer for electrified railway station, Rectification excitation transformer etc.

Technical Datasheet for Cast Resin Dry Type Transformer

Items	Item
Origin	China
Manufacturer	Pearl Electric Co., Ltd.
Brand	Pearl Electric
Production Descriptions	Three Phase Dry Type Voltage Power Distribution Transformer
Reference standards	IEC 60076-11
Capacity	10500kVA
Frequency	60 / 50Hz
Voltage (HV)	35KV or customized
Voltage (LV)	4.95KV or customized
Impedance	4%-6%
Connections (Vector Group)	Dyn11
Tapping Range	+ 2 x 2.5% , - 2 x 2.5%
Core materials	Silicon Steel
Winding materials	Aluminum or copper
Lightning Impulse Withstand Voltage	IEC standard
AC withstand voltage	IEC standard
Temperature Rise class	H-class
Temperature Rise	125K
Cooling method	AN/AF

 

Certifications

Product Line

Company Profile

 Pearl Electric, located in Guangzhou, China, was founded in 1958 and is an outstanding power equipment supplier in the transmission and distribution industry. With a land area of 100000 square meters, over 600 employees, and an annual turnover of over USD 142 million, we currently have over 200000 transformers in operation, which have been sold to Southeast Asia, Central Asia, Africa, Europe, North America and other regions.   

 

Pearl Electric is devoted to providing safe, highly efficient and intelligent power transformation and distribution solution, focusing on R&D, manufacturing, sales and service as below:

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Reactors and other power transformation/transmission equipment.

Project Reference

Application / Solution

FAQ

FAQ:
 1.Q: Are you manufacturer?
    A: Yes, we are manufacturer. Our factory is in Guangzhou City, Guangdong Province.
2.Q: Do you have any Certificate?
    A: Yes. Our transformer has awarded CE, UL, KEMA certificate. If you need any other Certificate, we can help you to apply it.
3.Q: How can I pay you?
    A: Pay by T/T and  L/C is acceptable.
4.Q: What about the production?
    A: In general,  it take 4~6weeks and it depend on the different style.
5. Q:How contact us to get quick inquiry ?