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Old 27th February 2013 | 23:22
  #1053 (permalink)  
inetdog
 
Joined: Feb 2013
Posts: 71
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From: Placerville, CA
So if you go EO on the 787...where does the power to op everything come from?
By design, from the APU and the RAT, with the batteries as a backup for essential systems if it comes to that.
The batteries should not be switched onto the main DC bus until after non-essential loads have been switched off. This is an active (solid state) relay and not just a diode isolator.
Last edited by inetdog; 27th February 2013 at 23:24.
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