CI 1 #11 : Full load current Calculation in 3 phase

[RBsai]

I am looking at CI Practice test question, the question asks for Full load current :

given : 3-phase, Y connected, L-L voltage, P (kw)

Solution says there is no need to include a root 3 in the problem ??

 

[EEpowerOK]

There is more than one version of Vol 1, you will have to provide the question

 

[RBsai]

A motor rated 1620 KW, 2.4 KV Line-line is on a 3 phase Y connected system. If this load has a lagging power factor of 0.85, the full load current is most nearly :

 

[EEpowerOK]

Motor is single phase load that is on a 3 phase Y system. So the P=V line * I Iine * pf

 

[RBsai]

How did you determine that " Motor is single phase " Is that an assumption?

 

[EEpowerOK]

I think that is their assumption to the problem. I would of used the srt 3 as though the motor was 3 phase. I see nothing to assume it is a single phase motor.

 

[RBsai]

Thanks for yor response.

Good luck!