Why are there two APU generator switches?

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Why are there two APU generator switches?

Postby Electron » 21 Mar 2015, 15:05

Why are there two APU generator switches? The manual says that it is because there are two Bus Tie Breakers.

However, on at least the 767, there are also two Bus Tie Breakers, but only one APU generator switch.

Hypothetically, if there were only one switch, could you alter airplane logic to cope with having only one switch without significant hardware and software modifications?
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Re: Why are there two APU generator switches?

Postby Electron » 22 Jul 2017, 15:09

Haha. I am really showing my age and exposure to the 737 in this post! Fleet type commonality was/is the obvious answer.
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Re: Why are there two APU generator switches?

Postby saara » 12 Aug 2017, 19:43

What stands to be the hardest bit is finding different sized sockets and pins. To the WDM I shall go. I will try to find some connectors that have 20 gauge single conductor unshielded wires (almost impossible, I know) and pick out some sockets and pins of different sizes.
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