Three phase auto transformer

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This three phase SOG auto-transformer is widely applied to the three phase power supply of import-export equipment, safeisolation power supply, step up-down power supply, rectifier equipment power supply, detecting system, power supply, and kinds of machinery power supply.

Features and benefits:
• High level of isolation
• High quality neutral-ground bond
• High level of common-mode noise rejection
Conversion from Delta to Wye or the other way around
• Easy to change voltage taps
• Custom design for specific system

Operating environment

1)Temp.:The ambient temperature can not over +40℃.
2)Altitude: Mounting location can not exceed the altitude of 2000m
3)Relative humidity: Maximum 90%
4)The site not attack by rain and snow
5)The medium which no explosion danger,no corroding metal,no electrical breakdown

Testing Items:

No-load Test(No-load Current, No-load Voltage, No-load Loss)
Load Test (Load Voltage, Temperature-rise)
Inductive Voltage Test
DC Resistance Test
Safety Test


The certificate of our transfomer has CE CQC RoHs UL


The above-mentioned products is frequently-used,we can also manufacture the products by customer design.And the specification is for reference,If has the change futher,please take the material object as the standard

For more detail,please contact my email

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Ms. Ellie
Tel: 86-020-86039861
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Guangzhou Yongxiang Electrical Appliance Factory
China (Mainland)
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