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20KVA Three Phase Step Down Power Transformer 480V/220V/208V/120V/110V

Categories Three Phase Auto Transformer
Brand Name: WINLEY
Model Number: OSG-20KVA
Certification: ISO,CE
Place of Origin: CHINA
MOQ: 1unit
Price: $20-$8000
Payment Terms: T/T
Supply Ability: 1000units/month
Delivery Time: 10-15days
Packaging Details: Plywood case
Usage: Step down
Primary voltage: 480V
Secondary voltage: 220V/208V/120V/110V
Protection: IP20
Coil: Copper winding
Capacity: 100VA-5000KVA
Cooling: AN
Efficiency: >98 %
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20KVA Three Phase Step Down Power Transformer 480V/220V/208V/120V/110V

20KVA Step Down Three Phase Auto Transformer 480V/220V/208V/120V/110V


Feature:


The autotransformer is a transformer with only one winding. When used as a step-down transformer, a part of the turns are drawn from the winding as the secondary winding. When used as a step-up transformer, the applied voltage is only applied to part of the turns of the winding. Usually the part of the winding that belongs to both the primary and the secondary is called the common winding, and the rest of the autotransformer is called the series winding. Compared with the ordinary transformer, the autotransformer of the same capacity is not only small in size, but also more efficient, and the transformer The larger the capacity and the higher the voltage, the more prominent this advantage. Therefore, with the development of power systems, the improvement of voltage levels and the increase of transmission capacity, self-coupling transformers have been widely used due to their large capacity, low loss, and low cost.


Specification:

TypeDry Type
Vacuum Pressure Impregnation
Autotransformer
Rated PowerUpto 5000KVA
InputVoltageRated Voltage ≤ 1000V
CurrentRated power/ Input Voltage / 1.732
TapNone/Customizable
ConnectionDelta/Wye
Frequency50/60Hz
Phase NumberSingle/Three
OutputVoltageRated Voltage ≤ 1000V
CurrentRated power/ Output Voltage / 1.732
TapNone/Customizable
ConnectionDelta/Wye
Frequency50/60Hz±5%
Phase NumberSingle/Three
Vector GroupYyn0/Dyn11
Impedance Voltage4%
Efficiency≥98%
Duty Cycle100% Continuous
Winding MaterialAluminum/Copper
No Load Current<4%
DisplayAnalog Voltmeter
Insulation ClassF/H
Insulation Resistance≥10MΩ
Withstand Voltage2500V, 1 Minute, No Flashover and Damage
Coil Temperature Rise≤120K
Cooling Method

Natural Convection (AN)

Forced Air (AF)

Working EnvironmentAmbient Temperature: -10℃ to +45℃
Relative Humidity: ≤95% (non-condensing)
Altitude: ≤1000m
Reference DimensionsCustomizable
Protection DegreeIndoor IP20 (NEMA 1)Outdoor IP54 (NEMA 3)
StandardsIn Accordance with IEC and EN



FAQ


1. Q: Can I have a sample order?

A: Yes, we welcome sample order to test and check quality.

2. Q: What is the lead time?

A: Sample time 3-7 days, we usually ship by DHL, UPS, FedEx,etc. Mass production time 7-25 days.

3. Q: How long is the warranty?

A: 24 monthes from B/L. If there are any accessory problems,just provide the photos of damaged accessory,then we will provide free service. According to the number of products,we will provide easily damaged accessories for free. we also can provide technical support if you need.

4. Q: Is OEM/ODM available?

A: Yes,it is! We are manufacturer with our own R&D team, we can customize products according to customer's drawing or requirements.

Customized services:

a. Customized color and special function.

b. Customized box.

c. Print customer's logo(MOQ:≥10pcs).

d. Your other ideas about product, we can help you design and put them into production. The above customized services must be confirmed before production.

5. Q: How to control the products quality?

A: Our company owns the core technology ,all kinds of products hold CE certificate. We have professional engineers. Workers are strictly required to make products according to the drawings. Each process has technical instructors.The QC supervisors will regularly inspect the production. We will do products performance tests during production, and comprehensive quality tests when the products is completed.

Quality 20KVA Three Phase Step Down Power Transformer 480V/220V/208V/120V/110V for sale
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