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Dry Type Trasformer
SGB (DGB ) Series 3 phase (1 phase) dry type isolation transformer is a numbers of coils structure (more than double coil). Primary winding and secondary winding are insulated. There are two frequency conversion ratio, rated type and center-tap type. To increase voltage or decrease voltage in eletro-magnatic induction principle.Isolation transformer could not only change voltage,but also isolate input winding and output winding in protect danger from touching charged body and earth at same time. Moreover,isolation transformer is able to restrain kinds of interference and filter wave.

SGB (DGB ) Series 3 phase (1 phase) dry type isolation transformer is a numbers of coils structure (more than double coil). Primary winding and secondary winding are insulated. There are two frequency conversion ratio, rated type and center-tap type. To increase voltage or decrease voltage in eletro-magnatic induction principle.Isolation transformer could not only change voltage,but also isolate input winding and output winding in protect danger from touching charged body and earth at same time. Moreover,isolation transformer is able to restrain kinds of interference and filter wave.

Insolation Transformer Function:
◆   Safe electricity isolation
◆   Change voltage grade
◆   Improve power supply balance performance
◆   SPD pulse resistant and filter electricity function


 

Capacity

1KVA-3000KVA

Voltage class 

< AC1140V

Input voltage 

rated voltage
±10% tolerance

Insulation resistance 

DC 500V≥100MΩ

Output voltage

rated voltage
±2-3℅

Insulation class 

 F

Frequency 

50Hz/60Hz, 25Hz/100Hz/200HZ/400Hz

Ambient temperature 

-15℃ ~ +45℃

Dielectric strength

AC2000V/10mA/60s

Relevent moisture

<95℅

Load performance 

Consistant 100% load,able to stand three times over temporary current. 

Temperature rise

<100K

Wave distortion 

No additional wave distortion

Noise

<55db



Examples:  SGB-100 3 phase isolated transformer 100KVA; OSGB 3 phase self coupling transformer 100KVA,
                   DGB-100 1 phase isolated transformer 100KVA; ODGB 1 phase self coupling transformer 100KVA.

Widely used in transportation, hospital, airport, train station, printing, CNC, dock, mineral corportaion, tunnel, imported devices,ect.


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