Three phase SG isolation transformer and three phase SOG auto transformer,input voltage and output voltage less than 1000V,the rated power of three isolation phase transformer from 500VA to 400KVA and the three phase auto transformer from 1KVA to 800KVA.The mode of connection can select lead wire,raw copper wire,terminal and brass crew.

Basic Data:
Input Voltage:440V,420V,400V,380V,220V,110V
Output Voltage:380V,220V,200V,190V,120V,110V,100V
Power: Three phase isolation transformer:500VA-400KVA
Three phase auto transformer:1KVA-800KVA
Frequency:50-60Hz
Isolation Class:E
Ambient temp: -25 degree celcius to +55 degree celcius
Efficient≥90%
Type of cooling system: natural air drying,dry type
Winding conductor material;usual use copper,can use aluminum if you have special requirements
Standard:
Power IEC60076
Isolation IEC61558

This three phase isolation transformers and three phase auto transformers are widely three phase power supply of import-export equipment, safeisolation power supply, step up-down power supply, rectifier equipment power supply, detecting system, power supply,UPS power supply,CNC machine and kinds of machinery power supply.

Feature:
1)  High level of isolation
2) High quality neutral-ground bond
3) High level of common-mode noise rejection
4) Conversion from Delta to Wye or the other way around
5) Easy to change voltage taps
6) Custom design for specific system