500kVA dry-type three-phase power transformer (SG-500kVA)

SG Series Three Phase Power Transformer / Isolation TransformerSpecification1.Standard:IEC/ ISO CE Certification 2.Rated voltage: <3kV 3.Three Phase Isolation transformer 4.Low loss & noise 5.Completely protection6.Open Type and Protective Type as optional7.Beautiful appearance, reliable qual

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SG Series Three Phase Power Transformer / Isolation Transformer


1.Standard:IEC/ ISO CE Certification 
2.Rated voltage: <3kV 
3.Three Phase Isolation transformer 
4.Low loss & noise 
5.Completely protection
6.Open Type and Protective Type as optional
7.Beautiful appearance, reliable quality
8.Easy to install


DG (single-phase) and SG series (three-phase) dry type transformer adopts high quality material and advanced technology , it has advantages of damp - proof and convenient maintenance, it can be applied to such power transmission and distribution places like underground railway , high building, airport, station, wharf, enterprise, tunnel, etc. It is mainly used in power supply occasions of AC 50~60Hz and voltage less than 500V. All the input and output voltage , connection group and capacity of tapped winding can be designed and produced according to users' requirements. 

Working Conditions

1.Ambient temperature: -25°C~+55°C 
2.Altitude: <1000m 
3.Relative humidity: <90% 
4.Environment exists without gas, steam, chemical deposition, dust or dirt that will affect transformer's insulation seriously, also explosive or corrosive medium is not allowed. 
5.If any special working conditions that are not in line with the above stipulations, user shall negotiate with us.

Model and Its meaning

500kVA Dry Type Three Phase Power Transformer (SG-500kVA)

Main Technical Characters

1.Input Voltage: 660V,440V,420V,415V,400V,380V,220V,110V etc
2.Output Voltage: 380V,220V,200V,190V,120V,110V,100V,48V,36V,24V,12V, etc
3.Capacity range: 0.15KVA-2000KVA 
4.Efficiency: ≥95% 
5.Insulation Class: B or F or H or HC
6.Type of cooling system: natural air drying or with fans cooling for IP20 
7.Waveform distortion: no additional waveform distortion 
8.Function: indication of input voltage, output voltage and current
9.Protection: over-current protection 
10.Winding conductor material: usually use copper,can use aluminum if you have special requirements
11.Can operate itself without anybody attending for a long term 
12.Electric strength: no breakdown or flashover phenomenon under power frequency sine voltage of 2000V for 1min 
13.Overload capability: for 1min under two times of rated current 

Overall dimension and installation dimension diagram

500kVA Dry Type Three Phase Power Transformer (SG-500kVA)
500kVA Dry Type Three Phase Power Transformer (SG-500kVA)
500kVA Dry Type Three Phase Power Transformer (SG-500kVA)
500kVA Dry Type Three Phase Power Transformer (SG-500kVA)
500kVA Dry Type Three Phase Power Transformer (SG-500kVA)

500kVA Dry Type Three Phase Power Transformer (SG-500kVA)
500kVA Dry Type Three Phase Power Transformer (SG-500kVA)


1.The payment term: We accept TT,30% deposite and 70% balance against copy of BL.
2.The delivery time: Usually it will take about 15-20 days.
3.The standard of package: For the small capacity,it will be in carton,for big capacity,we should use strong wooden case for protection.
4.The material of windings: 100% real copper wire.
5.The logo: If you have good quantity,it absolute no problem to do OEM.
6.The month capacity: reach near 80000pcs/month(for small capacity) or near 7000pcs/month(for big capacity).
7.Our market: our products are popular in Indonesia,Philippines,Russia,USA,Middle East and so on.Some of them are our regular customers and some of them are developing.We hope you can join us and make mutural benifit from our cooperation.
8.Warranty: in 13 months since BL date.

 Why choose REELEN
1. One-stop supplier globally.
2. More than 10 years professional experiences in electrical appliance industry. 
3. We offer professional online technology support for perfecting your electrical solution free.
4. Experienced sales service and suggestion.
5. All the products with accessories under strict quality control and final inspection before shipping.
6. We can assure the powerful competitive price and reliable quality products.
7. Most competitive shipping rate from our own shipping forwarder.
8. Warranty assurance: REELEN will be responsible for any problem.
9. Whatever big or small order,we can provide you one-to-one service.  
10. Most of our products have passed CE, ROHS certificates.

Our Service

1. We can provide sample pieces.
2. We can make the special samples as clients' requirement.
3. We can do everything before delivery. You only need to make the order,then box designing,raw material preparing,product producing,delivery and documents preparing all can be done by ourselves.
4. We can desgin the products color box,based on customers' requirement.

Related Product

500kVA Dry Type Three Phase Power Transformer (SG-500kVA)

500kVA Dry Type Three Phase Power Transformer (SG-500kVA)

About Us

REELEN company is located in Yueqing city, which known as the Chinese electrical appliances, since the inception, REELEN has been specialized in manufacturing and exporting various of electrical products, most of our products have passed CE & RoHS certifications.

Our main products include machine tool control transformers, lighting control transformers, auto voltage reducing starter transformers, three phase Isolation transformers, step up & down transformers, temperature controllers, AC-DC switching power supplies, DC-DC converter, waterproof LED driver, AC voltage stabilizer, EMI filter, inverter, regulators and so on; And our products have been exported to many countries in US, Southeast Asia, the Middle East, Europe and South America and so on.

Quality excellence and customer satisfaction is our strategic principle, we are responsible for powerful competitive price, better quality, quick shipment and developing new products. Our aim is to help our clients realize their goals and to achieve an win-win situation through our great efforts.
We are sincerely looking forward to developing long-term friendly and cooperative business relationships with friends all over the world, and hereby, we welcome customers of every country to our company and factory.

If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us.

Thanking you!

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500kVA Dry Type Three Phase Power Transformer (SG-500kVA)


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