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Automatic way to turn On the Standby alternator

 
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nuckolls.bob(at)aeroelect
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PostPosted: Wed Feb 03, 2016 5:31 am    Post subject: Automatic way to turn On the Standby alternator Reply with quote

Quote:
Since I've never designed an aircraft electrical system, much less built one, I'll leave it others to advise whether you should be able to turn both alternators off. Bob?

Smoke in the cockpit?



Bob . . .


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trigo(at)mail.telepac.pt
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PostPosted: Wed Feb 03, 2016 6:52 am    Post subject: Automatic way to turn On the Standby alternator Reply with quote

Bob

I imply from your (very short) answer that I must be able to turn off both alternators in flight, right?

Carlos



From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Robert L. Nuckolls, III
Sent: quarta-feira, 3 de Fevereiro de 2016 13:27
To: aeroelectric-list(at)matronics.com
Subject: Re: RE: Automatic way to turn On the Standby alternator
Quote:

Since I've never designed an aircraft electrical system, much less built one, I'll leave it others to advise whether you should be able to turn both alternators off. Bob?


Smoke in the cockpit?


Bob . . .
Este e-mail foi enviado a partir de um computador sem vírus protegido pela Avast. www.avast.com


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rene(at)felker.com
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PostPosted: Wed Feb 03, 2016 7:19 am    Post subject: Automatic way to turn On the Standby alternator Reply with quote

I would say yes.  Most A/C have a master switch of some kind so that all power can be removed.  Depending on how you wire it…..the master switch may or may not do the job.

I elected to have separate switches to control the Alternators.  I can run them at the same time, but my backup is set lower so I am guessing it would never contribute as long as the primary was working.  I also have extra battery power…..I really do not need an alternator to finish any reasonable flight.  With a little load shedding I am good for 2-3 hours.  Unless I lose my alternator on take off at night….I am all set for any flight I take.

BTW, I have tested this in real conditions twice and it works fine.  I changed my alternator to a 70 amp version but did not change the breaker.  I don’t know how because I do not have 70 amps worth of load, but the 60 amp break tripped twice on a long cross country when I transmitted shortly after takeoff.  No problems since I upgraded the breaker.  Both flights were completed on the backup battery with the main battery being used as a reserve.  (main battery is a 925 and backup is a 680)  I have an 8 amp backup alternator which does not keep up with basic load……but extends the flight time way past the fuel limit.

Rene'
801-721-6080


From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Carlos Trigo
Sent: Wednesday, February 03, 2016 7:51 AM
To: aeroelectric-list(at)matronics.com
Subject: RE: RE: Automatic way to turn On the Standby alternator

Bob

I imply from your (very short) answer that I must be able to turn off both alternators in flight, right?

Carlos



From: owner-aeroelectric-list-server(at)matronics.com (owner-aeroelectric-list-server(at)matronics.com) [mailto:owner-aeroelectric-list-server(at)matronics.com (owner-aeroelectric-list-server(at)matronics.com)] On Behalf Of Robert L. Nuckolls, III
Sent: quarta-feira, 3 de Fevereiro de 2016 13:27
To: aeroelectric-list(at)matronics.com (aeroelectric-list(at)matronics.com)
Subject: Re: RE: Automatic way to turn On the Standby alternator
Quote:

Since I've never designed an aircraft electrical system, much less built one, I'll leave it others to advise whether you should be able to turn both alternators off. Bob?


Smoke in the cockpit?

Bob . . .
Este e-mail foi enviado a partir de um computador sem vírus protegido pela Avast.
www.avast.com


- The Matronics AeroElectric-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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