PPRuNe Forums - View Single Post - 787 Batteries and Chargers - Part 1
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Old 15th Feb 2013, 12:59
  #701 (permalink)  
Lyman
 
Join Date: Aug 2011
Location: Grassy Valley
Posts: 2,123
All the talk about sensing temperatures at each battery, and even separate locations within each battery's cells, is a red herring. There is no way to "shut down" any one of the eight batteries connected in series.

One battery goes bad, the system shuts down. So why any more than one thermocouple?

The problem has always been propagation of thermal runaway.

When each battery of the eight battery group is short on life cycle, the entire group is short on life cycle.

This is all about compliance. The Backup 'system' flies in the face of even a one in ten million, the accelerated replacement program (ARP) is testimony to that.

Back to the regulations......

SoS... That "Thermocouple" is attached at......Battery #6? Almost as if it was planned that way?


Last edited by Lyman; 15th Feb 2013 at 13:04.
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