{}

Our Brands

Schneider Electric USA Website

Welcome to our website.
How can we help you today?
Can a single phase source be used to feed a three phase Transformer to feed a single phase load?
Issue:
Three phase Transformers cannot be fed with a Single Phase source for proper operation.
Product Line:
LV Transformers
Environment:
Applies to all SquareD/Schneider Electric Three Phase Transformers
Cause:
Three Phase Transformers must be fed with a Three Phase source, as they are designed to accept
Resolution:
No, single phasing a three phase Transformer can result in possible damage to the Transformer. Three Phase Transformers must have all three phases of the correct design voltages applied to their Primaries for proper operation.  Application of Single Phase power on two Primary terminals of a Three Phase Transformer will not adequately magnetize the entire Core mass of the Transformer, so will not produce the correct designed output voltages on the Secondary. Also, a Single Phase voltage source cannot provide the necessary 120 degree phase shift between all three phases that is a key characteristic of Three Phase power.


Schneider Electric USA

Can a single phase source be used to feed a three phase Transformer to feed a single phase load?
Issue:
Three phase Transformers cannot be fed with a Single Phase source for proper operation.
 
Product Line:
LV Transformers
 
Environment:
Applies to all SquareD/Schneider Electric Three Phase Transformers
 
Cause:
Three Phase Transformers must be fed with a Three Phase source, as they are designed to accept
 
Resolution:
No, single phasing a three phase Transformer can result in possible damage to the Transformer. Three Phase Transformers must have all three phases of the correct design voltages applied to their Primaries for proper operation.  Application of Single Phase power on two Primary terminals of a Three Phase Transformer will not adequately magnetize the entire Core mass of the Transformer, so will not produce the correct designed output voltages on the Secondary. Also, a Single Phase voltage source cannot provide the necessary 120 degree phase shift between all three phases that is a key characteristic of Three Phase power.


 

Schneider Electric USA

Explore more
Range:
Explore more
Range:
Users group

Discuss this topic with experts

Visit our Community for first-hand insights from experts and peers on this topic and more.
Users group

Discuss this topic with experts

Visit our community and get advice from experts and peers on this topic and more
Explore more
Range:
Explore more
Range:
move-arrow-top
Your browser is out of date and has known security issues.

It also may not display all features of this website or other websites.

Please upgrade your browser to access all of the features of this website.

Latest version for Google Chrome, Mozilla Firefox or Microsoft Edgeis recommended for optimal functionality.
Your browser is out of date and has known security issues.

It also may not display all features of this website or other websites.

Please upgrade your browser to access all of the features of this website.

Latest version for Google Chrome, Mozilla Firefox or Microsoft Edgeis recommended for optimal functionality.