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Project Apollo Beta 7.0 released!
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Author Topic: The inverter check  (Read 1224 times)
brittany_Apollo8_fan
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« on: October 03, 2006, 09:08:06 AM »

Can someone explain the inverter check, because that always throws me for a loop.  I can't find the INV 2 AC2 switch.  Where is it?   I keep getting the master alarm to go off.
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"All we do is open the valves and Frank comes home."

Chris Kraft, talking to Susan Borman about her concerns that Apollo 8 would be stranded in lunar orbit.
"From the Earth to the Moon"
Tschachim
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« Reply #1 on: October 03, 2006, 12:16:40 PM »

The inverter/AC bus switches are on panel 3 on the right side, left of the AC volt meter. The INV2 AC2 switch connects AC bus 2 to inverter 2 and is in the lowest row, labeled AC BUS 2, and there's the 2nd switch from the left, labeled with 2.

... and yes, you get a master alarm during the test:



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brittany_Apollo8_fan
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« Reply #2 on: October 03, 2006, 01:55:37 PM »

Thanks for your help. 
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"All we do is open the valves and Frank comes home."

Chris Kraft, talking to Susan Borman about her concerns that Apollo 8 would be stranded in lunar orbit.
"From the Earth to the Moon"
Tschachim
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« Reply #3 on: October 03, 2006, 02:36:34 PM »

You're welcome. Happy
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Christophe
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« Reply #4 on: October 06, 2006, 05:01:24 AM »

Following the explanation from Tschachim, there are 3 inverters available in the CM. 2 only are inline, n1 & 2. The purpose of this check is to verify the stand by inverter (n3) works properly. During the transfers, it's perfectly normal to get some alarms.
Just follow the check. Happy
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