Today's Message Index:
----------------------
1. 07:03 AM - Re: Fat Feed Relay & Contactor (Robert L. Nuckolls, III)
2. 07:04 AM - Re: Electrical Design Question (Robert L. Nuckolls, III)
3. 08:35 AM - Re: Electrical Design Question (Brett Ferrell)
4. 10:38 AM - Microair T2000 testing (Ken Simmons)
5. 02:02 PM - Wiring Diagrams Available (Randy Pflanzer)
6. 04:52 PM - ANL 20n current limiter source (Dan O'Brien)
7. 04:59 PM - OV module on RV with 60A internally-regulated alt. (Amit Dagan)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Fat Feed Relay & Contactor |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 01:04 AM 12/18/2003 -0500, you wrote:
>--> AeroElectric-List message posted by: Don Boardman <dboardm3@twcny.rr.com>
>
>Hi Bob ... guys,
>
>Thank you for the timely reply to last night's email on
>No Electric Starter/System Ques.
>I am going with your suggestions.
>Your response gave me just what I needed to proceed!
>
>More questions.
>
>RELAY DIODE
>
>A question about the use of the S704-1 relay on the fat feed from
>the BB to the E-bus.
>I see how the relay is wired into the system for the SD-8 on Z-13.
>No Diode is involved.
>The relay in the Fat Feed schematic
>http://www.aeroelectric.com/temp/E-BusFatFeed.gif
>has a diode associated with it.
>
>* What's up with the diode? What type is it?
> Is it like the normal feed diode, a D25 or a diode like on the contactor?
No, the diode across the relay coil is an itty-bitty feller. Any
of the 1N4000 series diodes is fine (1N4001 thru 1N4007). Radio
Shack 276-1101 will get you a pair of these critters for about
60 cents.
>You remind me to heatsink the normal feed diode which allows the main bus to
>feed the E-bus.
>
>* Does mounting it on an aluminum shelf or firewall do the job?
sure
>BATTERY CONTACTOR
>
>I purchased the "wrong" contactor a year ago .
>I saw prewired and went for a S701-2.
>I missed that it was a crossfeed contactor. I realize I need a S701-1 for my
>battery contactor. On the web site the pictures look like each is a
>4-terminal constant duty contactor.
>* Can I simply use the pictures on the web site as a guide and remove the
>two extra diodes and add the jumper from the Bat to the coil terminal?
>
Yes
Bob . . .
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Electrical Design Question |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 10:20 PM 12/17/2003 -0500, you wrote:
>--> AeroElectric-List message posted by: "Brett Ferrell"
><bferrell@123mail.net>
>
>Thanks Bob, I'm installing 2 B&C alternators since I've got electronic
>ignition and all electric instruments, and have the essential bus in case I
>need to shutdown both, really. Kind of belt, suspenders and bib-overalls I
>guess, but I figured why not?....
It would be helpful to know the answers to my questions. Also,
which Z-figure are you using?
>Brett
>
>----- Original Message -----
>From: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
>To: <aeroelectric-list@matronics.com>
>Subject: Re: AeroElectric-List: Electrical Design Question
>
>
> > --> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
><bob.nuckolls@cox.net>
> >
> > At 04:23 PM 12/17/2003 -0500, you wrote:
> > >--> AeroElectric-List message posted by: "Brett Ferrell"
> > ><bferrell@123mail.net>
> > >
> > >Here's one for you electrical design/engineer types,
> > >
> > >I have a essential bus in my all electric plane system design, with the
> > >back feed diode that's rated at (I believe) 25 amps from BandC.
> >
> > IF installed on adequate heat sink . . .
> >
> > >My normal ESS running load will be just over 8 amps, the published max
> > >loads for these items is just over 18, but because the manufacturers
> > >recommend much larger breakers for thier equipment (like the blue
>mountain
> > >EFIS), the breaker protected max load for the line will be almost 40A (15
> > >for pitot, 10 for the EFIS, a comm, a nav, xponder, intercomm, and the
> > >left electronic ignition). I feel like I should parallel two of these
> > >diodes so I don't risk burning one up, but it also feels like
> > >overkill. What's the best practice/convention on something like this?
> >
> > Are you using breakers or fuses? A fault downstream on a fuse
> > will not hurt the diode (in spite of the fact that 300 or more
> > amps will flow for milliseconds). I wouldn't worry about transient
> > loads. For all those equipment items . . . just mount your diode
> > assembly on a metal surface.
> >
> > Paralleling diodes is a mixed bag . . . they don't share loads
> > well. I'd move the electronic ignition to the battery bus.
> > Also, pitot heat doesn't go on an endurance bus. If you
> > plan to spend long periods of time in clouds, you need two
> > alternators.
> >
> > Bob . . .
> >
> >
>
>
Bob . . .
--------------------------------------------
( A beginning of the end is marked by )
( replacement of experience and common )
( sense with policy and procedures. )
( R. L. Nuckolls III )
--------------------------------------------
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Electrical Design Question |
--> AeroElectric-List message posted by: Brett Ferrell <bferrell@123mail.net>
Bob,
Apologies. I'm using Z12 (single battery, dual alternator) as a starting point,
and am using primarily fuses, with C/B for mainly the avionics and ignition.
Since this is going onto my Velocity XL/FG I'm also using the canard grounding
figure Z15(b).
Based on your input I would take the one ignition off the essential bus to the
battery bus, and move the pitot to the main bus, correct? That would take my
essential bus (breakered) load down to 22A (with a usual running load of about
6.5A, and "max running" load of just over 14). If I attach the diode to an aluminum
plate, I assume it would need to be stood off of any fibeglass surfaces,
correct (both to protect the glass from overheating and provide convective
fin area for the diode)?
Brett
Quoting "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>:
> --> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
> <bob.nuckolls@cox.net>
>
> At 10:20 PM 12/17/2003 -0500, you wrote:
> >--> AeroElectric-List message posted by: "Brett Ferrell"
> ><bferrell@123mail.net>
> >
> >Thanks Bob, I'm installing 2 B&C alternators since I've got electronic
> >ignition and all electric instruments, and have the essential bus in
> case I
> >need to shutdown both, really. Kind of belt, suspenders and
> bib-overalls I
> >guess, but I figured why not?....
>
> It would be helpful to know the answers to my questions. Also,
> which Z-figure are you using?
>
> >Brett
> >
> >----- Original Message -----
> >From: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
> >To: <aeroelectric-list@matronics.com>
> >Subject: Re: AeroElectric-List: Electrical Design Question
> >
> >
> > > --> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
> ><bob.nuckolls@cox.net>
> > >
> > > At 04:23 PM 12/17/2003 -0500, you wrote:
> > > >--> AeroElectric-List message posted by: "Brett Ferrell"
> > > ><bferrell@123mail.net>
> > > >
> > > >Here's one for you electrical design/engineer types,
> > > >
> > > >I have a essential bus in my all electric plane system design, with
> the
> > > >back feed diode that's rated at (I believe) 25 amps from BandC.
> > >
> > > IF installed on adequate heat sink . . .
> > >
> > > >My normal ESS running load will be just over 8 amps, the published
> max
> > > >loads for these items is just over 18, but because the
> manufacturers
> > > >recommend much larger breakers for thier equipment (like the blue
> >mountain
> > > >EFIS), the breaker protected max load for the line will be almost
> 40A (15
> > > >for pitot, 10 for the EFIS, a comm, a nav, xponder, intercomm, and
> the
> > > >left electronic ignition). I feel like I should parallel two of
> these
> > > >diodes so I don't risk burning one up, but it also feels like
> > > >overkill. What's the best practice/convention on something like
> this?
> > >
> > > Are you using breakers or fuses? A fault downstream on a fuse
> > > will not hurt the diode (in spite of the fact that 300 or more
> > > amps will flow for milliseconds). I wouldn't worry about
> transient
> > > loads. For all those equipment items . . . just mount your diode
> > > assembly on a metal surface.
> > >
> > > Paralleling diodes is a mixed bag . . . they don't share loads
> > > well. I'd move the electronic ignition to the battery bus.
> > > Also, pitot heat doesn't go on an endurance bus. If you
> > > plan to spend long periods of time in clouds, you need two
> > > alternators.
> > >
> > > Bob . . .
> > >
> > >
> >
> >
>
> Bob . . .
>
> --------------------------------------------
> ( A beginning of the end is marked by )
> ( replacement of experience and common )
> ( sense with policy and procedures. )
> ( R. L. Nuckolls III )
> --------------------------------------------
>
>
>
>
>
>
--
Visit us at www.velocityxl.com
44VF Velocity XL/FG
I68 Cincinnati, OH
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Microair T2000 testing |
BLANK_LINES_70_80
--> AeroElectric-List message posted by: "Ken Simmons" <ken@truckstop.com>
Bob,
I picked up a used T2000 transponder, but I'm not ready to install yet. Is there
a good way to test this?
Specifically, my concerns are turning the thing on without an antenna. I know transmitters
can be damaged without a proper load attached, but I'm not sure how
a transponder works in regards to transmitting. Does it only repond if it's
interrogated? Will it receive and interrogation signal without an antenna attached?
Thanks.
Ken
DO NOT ARCHIVE
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
<f1builders@lists.cc.utexas.edu>
| Subject: | Wiring Diagrams Available |
--> AeroElectric-List message posted by: "Randy Pflanzer" <f1rocket@comcast.net>
For those of you with the interest, I posted all the wiring diagrams for my F1
Rocket on my web site today. You can get to them off of the F1 Rocket Project
page. You can view them as .PDF files using Adobe Acrobat.
Perhaps you'll find them helpful. I don't have them all there yet as I am still
undecided on my EFIS and avionics packages.
Let me know if you see something that looks like it will let all the smoke out
of the wires!!
Regards,
Randy #95
http://f1rocket.home.comcast.net/
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | ANL 20n current limiter source |
--> AeroElectric-List message posted by: "Dan O'Brien" <danobrien@cox.net>
Was planning to place a final order to collect remaining needs for my
electrical system and saw that the B&C site doesn't offer ANL 20 current
limiters. I figured this would be the right one for my #2 alternator, the
SD-20. If not, would I do harm by substituting an ANL 40?
On a similar topic, the information from Continental says that the
alternator that comes with the engine (IO-550) provides 70 amps. Should I
order an ANL 60 or an ANL 70 for the primary alternator?
Thanks,
Dan O'Brien
Lancair ES
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | OV module on RV with 60A internally-regulated alt. |
--> AeroElectric-List message posted by: "Amit Dagan" <amitdagan@hotmail.com>
Hi All,
I would like to see a picture (or explanation) of an RV with Bob's OV module
and relay for the 60A alt that VAN's sell.
Thanks a lot,
Amit, RV-7, wiring.
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|