Jiangsu Yawei Transformer Co.,Ltd. is one of the leading manufacturers and suppliers of osg/sg three-phase dry isolation transformer | yawei transformer in China. Please feel free to buy high quality osg/sg three-phase dry isolation transformer | yawei transformer from our factory. Customized orders are welcome.
Product Overview
The OSG/SG Three-Phase Dry Isolation Transformer is designed for applications that require reliable voltage conversion, electrical isolation, and stable power quality. With a dry-type construction and separate primary and secondary windings, the transformer helps isolate connected equipment from disturbances on the incoming power supply while providing the required output voltage.
The OSG/SG series is suitable for 50Hz and 60Hz AC power systems and can be configured with different input and output voltage levels, connection groups, winding arrangements, and voltage regulation taps according to project requirements. Similar SG-series dry isolation transformers are commonly used for industrial equipment, precision machinery, medical equipment, automation systems, UPS systems, rectifiers, and other sensitive electrical loads.
Compared with oil-immersed transformers, the dry-type design eliminates insulating oil, making the OSG/SG series a practical choice for indoor installations and locations where fire safety, cleanliness, and simplified maintenance are important.
Key Features
Three-Phase Electrical Isolation
The primary and secondary windings are electrically separated to provide galvanic isolation between the power source and the connected load. This helps improve system safety and reduce the impact of certain electrical disturbances.
Flexible Voltage Conversion
Input and output voltages can be customized to match different electrical systems and equipment requirements. Common low-voltage configurations include 380V, 400V, 415V, 440V, 480V, 220V, and other specified voltage levels.
Dry-Type Construction
The transformer uses a dry insulation system instead of insulating oil. This makes it suitable for indoor industrial facilities, commercial buildings, control rooms, workshops, hospitals, and other environments where oil-free electrical equipment is preferred.
F or H Class Insulation
Depending on the design and application, the transformer can use F or H class insulation systems. Advanced winding and vacuum impregnation processes can provide reliable insulation performance and help improve resistance to heat and electrical stress.
Reduced Electrical Interference
Properly designed isolation transformers can help reduce the transmission of certain common electrical disturbances between the source and load. The SG series is also commonly used in applications where power quality and protection of sensitive equipment are important.
Custom Engineering
The OSG/SG transformer can be engineered according to the customer's electrical requirements, including rated capacity, input and output voltage, connection group, tap arrangement, secondary winding configuration, enclosure, and installation requirements.
Technical Specifications
| Parameter | OSG/SG Three-Phase Dry Isolation Transformer |
|---|---|
| Product Type | Three-Phase Dry Isolation Transformer |
| Model | OSG / SG Series |
| Phase | Three Phase |
| Rated Frequency | 50Hz / 60Hz |
| Rated Capacity | Customized according to application |
| Input Voltage | Customized |
| Output Voltage | Customized |
| Insulation Class | F / H, depending on design |
| Cooling Method | AN / optional forced-air cooling |
| Winding | Copper or aluminum, depending on specification |
| Connection Group | Customized, such as Dyn11 or Yyn0 |
| Voltage Regulation | Customized |
| Enclosure | Open type or protective enclosure |
| Installation | Indoor / customized outdoor configuration |
| Application | Industrial, commercial, medical, automation, UPS and precision equipment |
Final technical parameters are determined according to the specific transformer design and customer requirements.
Applications
The OSG/SG three-phase dry isolation transformer is particularly useful where electrical isolation and reliable voltage conversion are required.
In industrial facilities, it can supply CNC machine tools, production lines, motor drives, control systems, automation equipment, and other electrical machinery. Isolation between the incoming power source and equipment can help create a cleaner and more controlled power environment.
For precision equipment and electronic systems, the transformer can be integrated into power supply systems where voltage stability, electrical isolation, and reduced interference are important. Typical applications include communication equipment, testing instruments, electronic equipment, and control cabinets.
The dry construction also makes the transformer suitable for hospitals, laboratories, commercial buildings, data centers, clean workshops, and other locations where oil-free electrical equipment is preferred. Similar three-phase dry isolation transformer designs are widely applied to medical equipment, UPS systems, precision instruments, and industrial automation.
Why Choose an OSG/SG Dry Isolation Transformer?
A transformer is not only about changing voltage. In many industrial power systems, the way the transformer separates the source from the load matters just as much.
The OSG/SG series combines three-phase voltage transformation and electrical isolation in one compact dry-type transformer. This makes it a practical solution when equipment requires a different operating voltage while the electrical system also needs better isolation.
For OEM equipment, industrial projects, and custom power distribution systems, Yawei can configure the transformer around the actual application rather than relying on a one-size-fits-all specification.
Customized Transformer Solutions
Yawei Transformer can provide customized OSG/SG three-phase dry isolation transformers according to project requirements. Customization can include:
| Customization Item | Available Options |
|---|---|
| Rated Capacity | Project-specific kVA rating |
| Primary Voltage | Customer specified |
| Secondary Voltage | Customer specified |
| Frequency | 50Hz / 60Hz |
| Connection Group | Customized |
| Tap Position | Customized |
| Winding Configuration | Customized |
| Insulation Class | F / H |
| Cooling | Natural or forced air |
| Enclosure | Open / protected enclosure |
| Installation | Indoor / customized |
| Auxiliary Components | According to project requirements |
OSG/SG Three-Phase Dry Isolation Transformer Manufacturer
As a transformer manufacturer, Yawei Transformer provides engineered dry-type transformer solutions for industrial and commercial power applications. Our engineering team can work with customers to select the appropriate capacity, voltage ratio, insulation system, winding configuration, and enclosure according to the actual load and installation environment.
Whether you need a standard three-phase dry isolation transformer or a customized transformer for industrial equipment, automation systems, UPS applications, medical equipment, or precision machinery, the OSG/SG series can be configured to suit the project.
Contact Yawei Transformer for technical specifications, drawings, pricing, and a customized OSG/SG three-phase dry isolation transformer solution.
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