[FONT=Times New Roman][SIZE=3][COLOR=#000000][/COLOR][/SIZE][/FONT][SIZE=3][FONT=Arial][COLOR=#000000]If you were on site and the MainSwitchboard was approximately 15 metres from a 1000 k VA 230/400 volttransformer with 5 percent impedance, [/COLOR]how[COLOR=#000000] would you be able to determine theapproximate prospective short circuit current at the line side of the main switchon that switchboard? [/COLOR][/FONT][/SIZE]
[FONT=Times New Roman][SIZE=3][COLOR=#000000][/COLOR][/SIZE][/FONT]

You might consider doing your own schoolwork and tell us your conclusion so we can assist you. You learn nothing if ẃe tell you the answer.