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rossmickey(at)comcast.net
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 Posted: Thu Jun 04, 2015 8:37 am Post subject: Testing SD-8 System in Figure Z-8 |
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My airplane is wired using the original All Electric on a Budget. Is there any way to test the system downstream of the SD-8? I would rather not remove the SD-8 and turn it using a drill and I don’t even know if that would work. Can I just apply power and ground to the red and black wires coming out of the voltage regulator for the SD-8?
Ross
N9PT
RV-6A
[quote][b]
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user9253
Joined: 28 Mar 2008
Posts: 1935
Location: Riley TWP Michigan
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| Posted: Thu Jun 04, 2015 9:09 am Post subject: Re: Testing SD-8 System in Figure Z-8 |
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| Quote: | | Can I just apply power and ground to the red and black wires coming out of the voltage regulator for the SD-8? |
That would work. Or connect a high wattage 12-volt test lamp to the same red and black wires and turn on the AUX ALT switch. The lamp should illuminate from aircraft battery power. Whenever connecting external power, there is chance of reversing polarity which can damage avionics.
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nuckolls.bob(at)aeroelect
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| Posted: Thu Jun 04, 2015 10:44 am Post subject: Testing SD-8 System in Figure Z-8 |
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At 11:35 AM 6/4/2015, you wrote:
| Quote: | My airplane is wired using the original All Electric on a Budget. Is there any way to test the system downstream of the SD-8? I would rather not remove the SD-8 and turn it using a drill and I don’t even know if that would work. Can I just apply power and ground to the red and black wires coming out of the voltage regulator for the SD-8?
Ross
N9PT
RV-6A
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What is your concern? A drill motor won't turn it fast
enough anyhow. Is this system not working in flight?
Bob . . . [quote][b]
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rossmickey(at)comcast.net
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| Posted: Thu Jun 04, 2015 11:10 am Post subject: Testing SD-8 System in Figure Z-8 |
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I had an “incident” at Oshkosh 10 years ago and it has taken me this long to get the plane back together. I replaced a bunch of avionics along the way and changed some wiring around. Since the plane has been sitting for 10 years, I am checking out all of my electrical systems including the charging systems.
I just want to check that when I flip the switch to link the SD-8 with the battery contractor that it is actually happening and that the electric flow from the SD-8 is making it to the battery contractor.
Ross
From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Robert L. Nuckolls, III
Sent: Thursday, June 04, 2015 11:40 AM
To: aeroelectric-list(at)matronics.com
Subject: Re: Testing SD-8 System in Figure Z-8
At 11:35 AM 6/4/2015, you wrote:
| Quote: |
My airplane is wired using the original All Electric on a Budget. Is there any way to test the system downstream of the SD-8? I would rather not remove the SD-8 and turn it using a drill and I don’t even know if that would work. Can I just apply power and ground to the red and black wires coming out of the voltage regulator for the SD-8?
Ross
N9PT
RV-6A |
What is your concern? A drill motor won't turn it fast
enough anyhow. Is this system not working in flight?
Bob . . . | Quote: | | http://www.matronics.com/Navigator?AeroElectric-List |
01234567
[quote][b]
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nuckolls.bob(at)aeroelect
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| Posted: Thu Jun 04, 2015 11:59 am Post subject: Testing SD-8 System in Figure Z-8 |
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At 02:08 PM 6/4/2015, you wrote:
| Quote: | I had an “incident” at Oshkosh 10 years ago and it has taken me this long to get the plane back together. I replaced a bunch of avionics along the way and changed some wiring around. Since the plane has been sitting for 10 years, I am checking out all of my electrical systems including the charging systems.
I just want to check that when I flip the switch to link the SD-8 with the battery contractor that it is actually happening and that the electric flow from the SD-8 is making it to the battery contractor.
Ross |
That system is stone simple, but it also
doesn't really perform at less than cruise
rpm. Since it's a standby system not necessary
for purposeful flight, suggest you let testing
go until all other matters are resolved. As
long as you are wired right, there's a 99.9%
probability that it will perform as advertised.
Bob . . . [quote][b]
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rossmickey(at)comcast.net
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| Posted: Thu Jun 04, 2015 12:39 pm Post subject: Testing SD-8 System in Figure Z-8 |
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Thanks, Bob. The only change I am making from Figure Z-8 is to incorporate the S-704-1 between the alternate feed E-bus switch and the E-Bus as shown in Z-13/8 which was not in Z-8. I am also going to hook my SD-8 switch to this relay so that when I turn on the SD-8 the alternate feed to the E-bus will also come on line. My reasoning is that in the case of a main alternator failure I would first switch on the SD-8 and then turn of the Main Alternator switch with no downtime for the stuff connected to the E-Bus.
Ross
From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Robert L. Nuckolls, III
Sent: Thursday, June 04, 2015 12:58 PM
To: aeroelectric-list(at)matronics.com
Subject: RE: Testing SD-8 System in Figure Z-8
At 02:08 PM 6/4/2015, you wrote:
| Quote: |
I had an “incident” at Oshkosh 10 years ago and it has taken me this long to get the plane back together. I replaced a bunch of avionics along the way and changed some wiring around. Since the plane has been sitting for 10 years, I am checking out all of my electrical systems including the charging systems.
I just want to check that when I flip the switch to link the SD-8 with the battery contractor that it is actually happening and that the electric flow from the SD-8 is making it to the battery contractor.
Ross |
That system is stone simple, but it also
doesn't really perform at less than cruise
rpm. Since it's a standby system not necessary
for purposeful flight, suggest you let testing
go until all other matters are resolved. As
long as you are wired right, there's a 99.9%
probability that it will perform as advertised.
Bob . . . | Quote: | | http://www.matronics.com/Navigator?AeroElectric-List |
01234567
[quote][b]
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http://www.matronics.com/Navigator?AeroElectric-List |
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nuckolls.bob(at)aeroelect
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| Posted: Thu Jun 04, 2015 2:00 pm Post subject: Testing SD-8 System in Figure Z-8 |
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At 03:36 PM 6/4/2015, you wrote:
| Quote: | | Thanks, Bob. The only change I am making from Figure Z-8 is to incorporate the S-704-1 between the alternate feed E-bus switch and the E-Bus as shown in Z-13/8 which was not in Z-8. I am also going to hook my SD-8 switch to this relay so that when I turn on the SD-8 the alternate feed to the E-bus will also come on line. My reasoning is that in the case of a main alternator failure I would first switch on the SD-8 and then turn of the Main Alternator switch with no downtime for the stuff connected to the E-Bus. |
. . . except what's the hurry? when an alternator fails, and
l assuming you have a diligently maintained main battery, you've
got time to finish you cup of coffee and put the sunflower seeds
away so you don't make a mess during system reconfiguration.
There's no urgency involved. Low volts warn light ON. Take
a sip. Main alternator switch OFF. Take last sip.
E-bus alternate feed ON. Put coffee cup away. Master
battery switch OFF. Pick up sunflower seeds that
fell between your legs. ASSUMING you have an SD-8
installed for standby service, then turn it ON.
If this whole sequence takes two minutes or 10
seconds is immaterial to the energy budget that
sets the conduct of your flight . . . and nothing
goes dark that you didn't intend to go dark.
A well crafted system with a Plan-B has no emergencies
hence no reason to raise your respiration rate
much sphincter tension.
Bob . . . [quote][b]
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rossmickey(at)comcast.net
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| Posted: Thu Jun 04, 2015 2:13 pm Post subject: Testing SD-8 System in Figure Z-8 |
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Thanks, Bob. Is there some reason my plan should not be used? The E-Bus alternate relay is already there. Instead of the four leisurely steps you describe, there are only two. Turn on SD-8, Turn off Alt/Bat main.
Ross
From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Robert L. Nuckolls, III
Sent: Thursday, June 04, 2015 2:58 PM
To: aeroelectric-list(at)matronics.com
Subject: RE: Testing SD-8 System in Figure Z-8
At 03:36 PM 6/4/2015, you wrote:
| Quote: |
Thanks, Bob. The only change I am making from Figure Z-8 is to incorporate the S-704-1 between the alternate feed E-bus switch and the E-Bus as shown in Z-13/8 which was not in Z-8. I am also going to hook my SD-8 switch to this relay so that when I turn on the SD-8 the alternate feed to the E-bus will also come on line. My reasoning is that in the case of a main alternator failure I would first switch on the SD-8 and then turn of the Main Alternator switch with no downtime for the stuff connected to the E-Bus. |
. . . except what's the hurry? when an alternator fails, and
l assuming you have a diligently maintained main battery, you've
got time to finish you cup of coffee and put the sunflower seeds
away so you don't make a mess during system reconfiguration.
There's no urgency involved. Low volts warn light ON. Take
a sip. Main alternator switch OFF. Take last sip.
E-bus alternate feed ON. Put coffee cup away. Master
battery switch OFF. Pick up sunflower seeds that
fell between your legs. ASSUMING you have an SD-8
installed for standby service, then turn it ON.
If this whole sequence takes two minutes or 10
seconds is immaterial to the energy budget that
sets the conduct of your flight . . . and nothing
goes dark that you didn't intend to go dark.
A well crafted system with a Plan-B has no emergencies
hence no reason to raise your respiration rate
much sphincter tension.
Bob . . . | Quote: | | http://www.matronics.com/Navigator?AeroElectric-List |
01234567
[quote][b]
| | - 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:
http://www.matronics.com/Navigator?AeroElectric-List |
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nuckolls.bob(at)aeroelect
Guest
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| Posted: Thu Jun 04, 2015 2:32 pm Post subject: Testing SD-8 System in Figure Z-8 |
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At 05:11 PM 6/4/2015, you wrote:
| Quote: | | Thanks, Bob. Is there some reason my plan should not be used? The E-Bus alternate relay is already there. Instead of the four leisurely steps you describe, there are only two. Turn on SD-8, Turn off Alt/Bat main. |
That will work...
Bob . . . [quote][b]
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http://www.matronics.com/Navigator?AeroElectric-List |
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