PROTECTIONS FOR TRANSFORMERS

Calculate the protections recommended for single phase transformers and for three phase transformers and autotransformers.

 

Single phase
VA
 
V
 
V
 
 
Three phase
kVA
 
V
 
V
 
 
Result

A

A

 
Result

A

A

 

* Slow fuse or D curve CB.
** Fast fuse or C curve CB.