3 phase and single phase formula

[brother]

Ok, i seem to have lost my formulas for 3 phase and single phase
Lets say i have a 200 kva transformer with 13,800 primary voltage and 480/277 secondary.
3 phase (to find amps ) is I= 200,000/13,800/1.73 or is I=200,000/13800*1.73??

 

[ENDIX]

formula

formula

both of formula is correct, :smile:

 

[Smart $]

both of formula is correct, :smile:

I suppose it must depend on one's understanding of mathematics

...but I'd say two formulas which yield a different result for the same conditions can be interpreted as one being incorrect :grin:

The following two equations are equivalent?and correct?in electrical and mathematical circles :smile:

I = VA ? E ? √3​

or

I = VA ? (E ? √3)​

The use of brackets (parentheses, etc.) is required in this case.

 

[brother]

Thanks for the info