Ess Shed Bus
does anyone have idea how much time SHED BUS(es) power when emergency case? all the time right?
i ask this question 'cause I see in the test of AC Emergency, if test continues over 30 seconds, the legend FAULT of EXTRACT P/B SW comes on. However in this config. extract fan is fed from DC ESS SHED while DC ESS SHED is powered!!!
am waiting for ur ideas. thks all