A320 Bus Ties and AC ESS ALTN p/b
Hi Guys,
Was just wondering if you could help me understand.
Firstly could you tell me what situation would demand that you manually select the AC ESS feed ALTN p/b? I understand that normally if there is a problem with AC BUS 1 it will automatically switch supply of the AC ESS BUS to AC BUS 2.
Secondly I was wondering the same of the BUS TIE p/b if you select it off. Again what situation would you choose to do that in?
Many thank for any answers.
Thank you
FH