how to decide the ratings of the busbar in
electrification.give me the proper thumb rule or procedure



how to decide the ratings of the busbar in electrification.give me the proper thumb rule or proced..

Answer / kannapa

busbar I = 1.4xtransformer kva this is apparent power.

busbar I = 1.74xtransformer kva this is for load in kw.

actual this is on low votage i.e., 415v 3phase only.

p=1.732xvxI from this we can obtain for different votages
and power ratings.
v may be 11kv,415,220v etc

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