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How to distinguish transformer?

Posted by: ROSELJR on 11/14/2021

 

How to distinguish step-up or step-down transformer Is it written as S11-100KVA/15/0.4 for step-down and S11-100KVA/0.4/15 for step-up?

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Submitted by PI-Dumbo on 11/18/2021

Hi ROSELJR,

 

Yes, S11-100KVA/15/0.4 is a step-down since the primary voltage is greater than the secondary voltage.

 

Thank you.