Description

SG/OSG Series Single/Three-Phase Dry-Type Transformer, Special Transformer 
GENERAL
DG and SG series single-phase and 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 distributionplaces 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 condition
1.Ambient temperature:-15℃-+40℃
2.Altitude:< 1000m
3.Relative humidity:< 90%
4.Environnment exists with out 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.

Technical index
1. Input voltage: rated voltage±10%
2. Output voltage: rated voltage +3% (no load)
3. Efficiency: ≥95%
4. Waveform distortion: no additional waveform distortion
5. Can operate itself without anybody attending for a long term
6. Insulation resistance: ≥50MΩ
7. Electric strength: no breakdown or flashover phenomenon under power frequency sine voltage of 2000V for 1min
8. Overload capability: for 1min under two times of rated current
FAQ：
Q 1. what\'s the payment term?  
A --We accept TT,30% deposit and 70% balance against copy of BL
 
Q 2. how\'s the delivery time ?
A --Usually it will take about 25 days for production.
 
Q 3. tell me the standard of package?
A --For the small capacity, it use carton, but for big capacity, we should use strong wooden case for protection.
 
Q 4. what kind of material of transformer?
A --We have two types, one 100% copper and the other is copper with aluminum.It depends on your requirement. In fact,those two have no difference if normal work well Only except the long life. Copper is better and dearer than copper with aluminum.
 
Q 5.Could you offer Form A or C/O ?  
A --It totally not a problem. We can prepare relative documents to forgin affairs office or other office to apply for this certificate.
 
Q 6.Would you accept to use our logo ?
A --If you have good quantity,it absolute no problem to do OEM.
 
Q 7.We want to know month capacity.  
A --It depends on which model.For example for servo motor type small capacity , month capacity can reach near 20000pcs   and big capacity near 3000pcs.
 
Q 8.Where is your market?
A --Our products are popular in Russia, Australia,Bangladesh, Indonesia, Pakistan, Africa countries and so on.Some of them are our regular customers and some of them are developing. We hope you can join us and make mutual profits from our cooperation.
 
Q 9.What is the featured products of your company ?
A. Single phase and three phase voltage stabilizers, voltage regulator, distribution transformers, low-voltage switch gear assembly,complete plant equipment etc.
 
Q10. what kind of certificate you have ?
A. Our company already achieve ISO, CCC, and for products, we have CE.