Today's Message Index:
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1. 01:24 PM - Re: 30A PM alternator and Z101? (Robert L. Nuckolls, III)
2. 05:04 PM - Re: 30A PM alternator and Z101? (Charlie England)
3. 07:48 PM - Re: 30A PM alternator and Z101? (Eric Page)
Message 1
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| Subject: | Re: 30A PM alternator and Z101? |
>It cannot be connected directly to the battery
>because it presents a passive load that will
>drain the battery. =9Cthere is a resistive
>voltage divider on the output that keeps tabs on
>the output voltage and that will over time drag your battery down=9D
Okay, as a MAIN alternator, it would drive the main
bus. As a standby alternator, it would need a relay
to isolated from the battery.
>BTW it is said to start and work well with battery disconnected.
Great!
>Question for Bob and others best way to incorporate it into Z101?
>Simply a 40A automotive relay between alternator and battery?
I believe so . . . or fat diode. This could be easily
explored/confirmed.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 2
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| Subject: | Re: 30A PM alternator and Z101? |
On 5/17/2022 3:23 PM, Robert L. Nuckolls, III wrote:
>> It cannot be connected directly to the battery because it presents a
>> passive load that will drain the battery. there is a resistive
>> voltage divider on the output that keeps tabs on the output voltage
>> and that will over time drag your battery down
>
> Okay, as a MAIN alternator, it would drive the main
> bus. As a standby alternator, it would need a relay
> to isolated from the battery.
>
>> BTW it is said to start and work well with battery disconnected.
>
> Great!
>
>> Question for Bob and others best way to incorporate it into Z101?
>> Simply a 40A automotive relay between alternator and battery?
>
> I believe so . . . or fat diode. This could be easily
> explored/confirmed.
>
> Bob . . .
>
> Un impeachable logic: George Carlin asked, "If black boxes
> survive crashes, why don't they make the whole airplane
> out of that stuff?"
>
If OV protection is used, You'd need a relay on the output anyway.
I took a quick look at their web page, and it seems a safe bet that it's
a high output brushless DC motor (really inverter driven AC) like you'd
see on a big RC plane, that's being used as a generator instead. I'd
also bet that there's a little wide-ratio planetary gearbox in the nose,
to get the magnet spinning fast enough to make that kind of power when
mounted on the low rpm vacuum pad. Anyone know if it's an 'outrunner' or
'inrunner'? I'm thinking something similar to this:
https://hobbyking.com/en_us/turnigy-l3010b-1300-brushless-motor-420w.html
On a completely different subject, is anyone having an issue like mine,
on receiving emails from the list?
I frequently see the reply (as this one, which is Bob's reply), but I
never see the original message unless I log into the Matronics *forum* &
find the thread. This is a fairly common problem for me; I'm set up for
receiving every post via email. I never find the original post in my
spam/junk folders.
Charlie
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Message 3
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| Subject: | Re: 30A PM alternator and Z101? |
Ceengland wrote:
> On a completely different subject, is anyone having an issue like mine, on receiving
emails from the list? I frequently see the reply (as this one, which
is Bob's reply), but I never see the original message unless I log into the Matronics
forum & find the thread. This is a fairly common problem for me; I'm set
up for receiving every post via email. I never find the original post in my
spam/junk folders.
Yes, I've had a lot of problems with the email echo system too. Multiple duplicate
emails, posts delivered late or out of order, missing posts, etc. I switched
to the daily digest hoping it would be less problematic, but it's no better.
I often get nothing for days, then get several digests in one day, out of
chronological order. I've emailed Matt to enquire about these problems but received
no reply.
I finally gave up on the emails; I just put a link to the A-E List on my browser's
start page and I check the forum periodically. I already check the EAA and
Kitfox forums, so it's no great burden to look here as well.
As I'm sure you've noticed, there are other problems. When members make posts
that include an image or PDF, they often come through email as fifteen or twenty
pages of random characters instead of an attachment. The forum frequently
splits threads into multiple instances with nearly identical subject lines, making
it very difficult to follow or search older content. The new post link on
threads with new posts only works once; if you click it on a second thread,
it returns an error saying there are no new posts.
I suppose there's a reason that the Matronics empire appears to run on a ca.2005
version of the phpBB forum. It's an open source package and updates are free,
so we can only guess what that reason might be...
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=506820#506820
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