Auto Transformer 220V To 480V
Model: SG
Rated Power: Client to specify
Input Voltage: 220VAC
Output Voltage: 480VAC
MOQ: 1 Set/Piece
OEM & ODM Service: Available
Brand: Noyark
Packaging: Plywood Case
Payment Methods: T/T, L/C, Western Union, Credit Card
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 | 220VAC | Input Current | Rated Power*1000/220/1.732 |
| Input Connection | Star (Wye) or Delta |
Cooling
|
AN or AF
|
| Output Voltage | 480VAC |
Output Current
|
Rated Power*1000/480/1.732 |
| 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.
Features
Easy to Install: Do not contain any complicated PCB, easy to be settled and low operation cost.
High Safety: Safe, non-flammable and self-extinguished. Do not use flammable or toxic liquids insulation, reducing the risk of leaks or fires.
High Stability: Strong mechanical strength and short circuit withstand.
Environmental-friendly: 100% dry structure guarantees zero environmental pollution.
Low Maintenance: Minimal maintenance is required since there are no liquids to monitor or replace.
Compact Design: Saves installation space with compact structure and light design.
High Efficiency: Low loss, low partial discharge, low noise and good heat dissipation
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.
FAQ
There are two main types of dry-type transformers: cast resin transformer (CRT) and vacuum pressure impregnated transformer (VPI).
CRT Transformers: windings are encapsulated in epoxy resin under vacuum, offering excellent protection against moisture, dust, and corrosive atmospheres. Ideal for harsh environments.
VPI Transformers: windings are impregnated under vacuum and pressure, then oven-cured. They are more flexible in design and cost-effective for standard industrial applications.
Voltage transformers typically have two windings: primary winding and secondary winding.
The primary winding is the winding of a transformer that is connected to and receives energy from an external source. The secondary winding is the winding of a transformer that delivers the transformed energy / changed voltage to the load.
Power transformer windings wrap around the core, which acts as the electric transformer's magnetic circuit. The core is critical to the electrical transformer because it enables electromagnetic induction between the primary and secondary windings.
Copper or aluminium conductors can be used to make transformer windings. Aluminium is lighter than copper but has 50% lesser conductivity than copper. It is cheaper than copper. On the other hand, copper has very good mechanical strength and is twice the conductivity of aluminium. Regardless of whether the windings are made from copper or aluminum, the function of these windings remains the same.
For safety, do not perform any maintenance tasks when the ac transformer has energy flowing through it. Look for adequate ventilation around the transformer. Remove anything in the area that impedes airflow. Look for dust or dirt accumulation on the surfaces of the volt transformer. You will need to clean these off after de-energizing the unit. However, the presence of dust indicates that the transformer is in a dusty area that will require inspections every three to six months. If you have the transformer in a dry, clean space, you may only need annual maintenance checks.
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