Dry Type Step Down Combined Distribution Transformer with Enclosure
Product Description
Description about High Voltage Epoxy Resin Casting Dry Type 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:
- 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).
- 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.
Pearl Electric, 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 |
High Voltage Epoxy Resin Casting Dry Type Transformer |
| Reference standards |
IEC 60076-11 |
| Capacity |
630kVA |
| Frequency |
60 / 50Hz |
| Voltage (HV) |
22KV or customized |
| Voltage (LV) |
0.4KV or customized |
| Impedance |
4% |
| 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
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:
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 ? Follow us in our company website.
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