[1]A solar energy installation utilizes a three-phase bridge converter to feed energy into power system through a transformer of 400 V/400 V, as shown below.

The energy is collected in a bank of 400 V battery and is connected to converter through a large filter choke of resistance 10 Ω.


[1]The maximum current through the battery will be [2 marks]
(A) 14 A
(B) 40 A
(C) 80 A
(D) 94 A [2]The kVA rating of the input transformer is [2 marks]
(A) 53.2 kVA
(B) 46.0 kVA
(C) 22.6 kVA
(D) 19.6 kVA

 

Hello,

This looks like a homework question, so I moved it to the homework section.
What have you done to find the solution.
Can you post it?

Bertus

PS : Don't use your email-adresses as user name.

 

If you short the inverter the battery will supply 400V/10ohms = 40A of current, and all the power goes into the filter choke where it is useless.

I would have no idea what the transformer rating would be from the information supplied.