Applications
- Marine & Offshore
- Power plants and Oil platforms
- Hydroelectric power plates and Thermal power plants
- Switch gears
- Underground railroads
- High-rise buildings
Product Ranges
Capacity Ranges: Up to 5MVA
Rated Voltage: Up to 13.8kV
Phase: Single or Three-phase
Frequency: 50Hz, 60Hz, or 400Hz
Cooling: AN, AF
Insulation Class: B, F, H
Winding Materials: Standard - copper, Option - Aluminum
Standards: All International Standards & Ship classifications are applicable
Characteristics
Simple design and easy to implement
Full copper winding and low losses
High efficiency and low noise level
High temperature and durable insulation
Easy to install and Maintenance free
Designed to withstand rolling and vibration conditions
Resistant to moisture
Advantages of OBOK's Dry Transformers
OBOK's dry transformers range up to 5MVA, with primary operating voltages up to 13.8KV and secondary operating voltages up to 11 KV.
To minimize environmental contamination and fire hazards, clients' needs for dry transformers are increasingly growing.
These transformers meet strict parameters concerning electrical system demands and functioning in areas with extreme climatic conditions.
OBOK's dry-type transformers fulfill the requirements of the international standard, IEC60076, as well as NEMA, ANSI, and IEC-204.
OBOK's dry-type transformers are virtually maintenance-free and are manufactured in accordance with the international quality standards, ISO 9001, and clients' standards.
Saving in installation
-Simple and economical civil works.
- Compact dimensions reduce installation space.
Maximum safety
-The insulation materials give the OBOK transformers high self-extinguishing characteristics.
- Since the cooling is only through natural air, no flammable and polluting fluids are necessary.
Low operation expenses
-Possibility of installation nearby the load reduces the losses in the connection cables.
- The low losses in the magnetic core and the windings give high economic efficiencies in operation.
High performances
- Low noise level.
- High overloading according to the IEC standards.
- Possibility of increasing power up to 40%, using fan-forced systems.
Maintenance-free
OBOK dry transformers are designed for withstanding the heaviest ambient and climatic conditions, so the preventive maintenance is simplified to a visual check and connection tightening.
High reliability
- Free from partial discharge.
- High technological processes in the manufacturing windings give the products high reliability.
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Quality and Reliability
OBOK's dry transformers fulfill the requirements of international standards IEC60076, IS0-9001, and clients.
All OBOK products are thoroughly tested as a routine, with additional tests stipulated by clients. Type testing takes place on all new products.
Test results and Certificates of Conformity are available where required.
In short, we do everything necessary to ensure that when you buy any of our products, you can be assured of the utmost quality and reliability.
Flexibility Design
In addition to our comprehensive range of standard products, OBOK's ability to manufacture customized products to meet the specific client requirements is second to none.
Throughout our long history, we have made the customization process one of the hallmarks of our success.
A state-of-the-art CAD system and electrical design program support the design facility to fulfill clients' particular requirements.
By combining intrinsic technical expertise with the latest technological systems, we are capable of designing and manufacturing a wide range of non-standard products.
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