380 Volt To 220 Volt Transformer
Model: SG
Rated Power: Client to specify
Input Voltage: 380VAC
Output Voltage: 220VAC
MOQ: 1 Set/Piece
OEM & ODM Service: Available
Brand: Noyark
Packaging: Plywood Case
Payment Methods: T/T, L/C, Western Union, Credit Card
When sourcing transformers, China-based companies such as Anhui Noyark Technology Co., Ltd are notable for their dedication to producing high-quality products, offering shorter lead times, and providing excellent customer service.
Specifications
| Type | Dry Type Transformer | ||
| General Purpose Transformer | |||
| Vacuum Pressure Impregnated Transformer | |||
| Autotransformer / Isolation Transformer | |||
| Rated Power | Client to specify | Display | Analog Voltmeter |
| Input Voltage | 380VAC | Input Current | Rated Power*1000/380/1.732 |
| Input Connection | Star (Wye) or Delta |
Cooling
|
AN or AF
|
| Output Voltage | 220VAC |
Output Current
|
Rated Power*1000/220/1.732 |
| Output Connection | Star (Wye) or Delta | Insulation Resistance | ≥500MΩ @ 1000V DC |
| Vector Group | Yyn0, Dyn11, etc | Dielectric Strength | 3000V AC |
| Phase Number | 3 | K Factor | N/A |
| Working Frequency | 50/60Hz |
Altitude
|
≤1000m |
| Winding Material | Aluminum (copper optional) |
Relative Humidity
|
≤95% (non-condensing)
|
| Insulation Class | F (H optional) |
Ambient Temperature
|
-15℃ to +45℃
|
| Impedance | 4% | Protection Degree | IP20 (IP00, IP44 and above optional) |
| Efficiency | ≥98% | Installation | Indoor (outdoor optional), floor mounted |
| Duty Cycle |
Continuous
|
Standard
|
IEC 60076-11 |
*Specifications subject to change without prior notice.
*Specifications subject to vary for models with different configurations.
Production Process
Manufacturing Core
- Three limb core configuration is taken under consideration to design a 3 phase transformer.
- Silicon Steel sheets, mainly Cold Rolled Grain Oriented (CRGO), are used to make core sheets that correspond to drawings of the required three-phase transformer coil then these sheets are coated with inorganic insulation.
- Afterward, mitered joints are employed between the limb and yoke plates.
- Fiber-glass tape banding is used to keep the core tight and to reduce noise.
- Corrosion resistant treatment is given to the finished core to protect it from air corrosion.
Manufacturing Windings
- High Voltage and Low Voltage windings are both made from copper or aluminum. The type of winding used is decided depending upon the amount of current and voltage to be carried. It can be round wire, rectangular strip, foil, layer or cross over.
- Casting under vacuum is done for making windings. Inserts are provided on the high voltage side to receive tap changing linkages. The connections in windings are insulated by heat shrinkable tubing.
Materials Used
- Silicone Sheets for making core sheets.
- Copper and aluminum magnet wire to make primary and secondary windings.
Gallery
*All images are representative only.
*Detailed information on size, weight and other technical details should be confirmed with us.
Why Choose Us
in one-stop service
Noyark's Dry-type Transformers are a new generation of reliable, safe, environment-friendly, and energy-saving high-tech transformers. They are particularly suitable for locations with high humidity or where fire-resistance is a high priority or loads fluctuate such as airports, high-rise buildings, densely populated areas, basements, cargo ships, offshore drilling platforms and nuclear power plants, etc.
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