Today's Message Index:
----------------------
1. 03:44 AM - Re: CROWBARS? (bob noffs)
2. 05:27 AM - Re: CROWBARS? (Charlie England)
3. 05:46 AM - Re: CROWBARS? (user9253)
4. 07:06 AM - Re: Re: CROWBARS? (bob noffs)
5. 08:08 AM - Re: CROWBARS? (Robert L. Nuckolls, III)
6. 09:50 AM - DPDT Toggle switch for BAT and 2 Alternators? (supik)
7. 10:23 AM - Re: Re: CROWBARS? (Robert L. Nuckolls, III)
8. 10:29 AM - Re: DPDT Toggle switch for BAT and 2 Alternators? (user9253)
9. 10:55 AM - Re: Re: CROWBARS? (Ken Ryan)
10. 11:05 AM - Re: Re: DPDT Toggle switch for BAT and 2 Alternators? (Robert L. Nuckolls, III)
11. 12:09 PM - Re: Re: CROWBARS? (bob noffs)
12. 12:55 PM - Arctic super-flex wire (Robert L. Nuckolls, III)
13. 01:08 PM - Re: Arctic super-flex wire (Ken Ryan)
14. 01:46 PM - Re: Arctic super-flex wire (Robert L. Nuckolls, III)
15. 02:12 PM - Jabiru 3300 voltage regulator (Pat Little)
16. 02:52 PM - Re: Re: DPDT Toggle switch for BAT and 2 Alternators? (JOHN TIPTON)
17. 04:14 PM - Re: Arctic super-flex wire (Ken Ryan)
18. 04:16 PM - Re: Jabiru 3300 voltage regulator (Robert L. Nuckolls, III)
19. 04:20 PM - Re: DPDT Toggle switch for BAT and 2 Alternators? (Robert L. Nuckolls, III)
20. 04:21 PM - Re: Arctic super-flex wire (Robert L. Nuckolls, III)
21. 05:24 PM - Ground power connector solenoid issue (Kent Ogden)
22. 07:37 PM - Re: Jabiru 3300 voltage regulator (user9253)
23. 08:14 PM - Re: Ground power connector solenoid issue (user9253)
24. 09:30 PM - Re: Re: Jabiru 3300 voltage regulator (Pat Little)
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 |
|
i started wiring my ovm and i have a question about auto relays. the
contactor i have for the lead off my alternator really bugs me that i am
adding 14 ounces just for this ''switch''. my alternator is rated at 37
amps but the 40 and even 50 amp auto relays look like that have a ''faston
tab'' for their terminal. are these terminals up to carrying the load from
the alternator?
bob
On Thu, Aug 9, 2018 at 5:31 PM Charlie England <ceengland7@gmail.com> wrote:
> I'm not (either) Bob, but...
>
> I assume you're talking about an internally regulated alternator. If you
> have a copy of the 'Connection, go to drawing z13/8, 'all electric plane on
> a budget'. You can copy the circuit shown for the Dynamo (upper right hand
> and top center of the page). Just erase the dynamo/regulator parts and the
> filter capacitor, and tie what's labeled as a red wire at the voltage
> regulator to the B lead of the alternator.
>
> Charlie
>
> On 8/9/2018 2:00 PM, bob noffs wrote:
>
> hi bob,
> i am trying to do ov protection on a viking 110. b and c would have the
> ovm blow a breaker and cut off current to coil in a relay. i think i have
> seen drawings of yours where a contactor is used betweeen alternator and
> main bus . can you direct me to a drawing that is as simple as you say. any
> current for relays/ contactors would have to come straight from the
> alternator. worst case with the honda is that both batteries must be taken
> off line, leaving the alternator to provide spark.
> thanks, bob noffs
>
> On Thu, Jul 12, 2018 at 7:49 AM, Robert L. Nuckolls, III <
> nuckolls.bob@aeroelectric.com> wrote:
>
>> At 05:45 AM 7/12/2018, you wrote:
>>
>> well, i guess i should wire in a crowbar. seems like it should be pretty
>> straight forward to have it break the circuit to the field. i will take a
>> look in bob's book for ideas and go from there.
>>
>>
>> The crowbar ov protection module can be added to
>> any system wherein alternator field power is
>> taken through a typical 5A breaker. The
>> module is wired from field supply line to
>> ground at any point downstream of that
>> breaker. You can find examples in the Z-figures.
>>
>>
>> Bob . . .
>>
>
>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> Virus-free.
> www.avast.com
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link>
> <#m_4793364182841804945_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>
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 |
|
Good question. Here's the Faston data sheet:
http://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Specification+Or+Standard%7F108-20020%7FD3%7Fpdf%7FEnglish%7FENG_SS_108-20020_D3.pdf%7F180906
The current rating of the terminal seems more closely tied to the wire size
than the terminal itself, but everything has a limit. If you want
'insurance', you can get those automotive relays with current ratings up to
around 100 amps. I've got one in front of me that's rated for 80 amps, and
the power carrying blades are 3/8" wide instead of 1/4". It came with a
mating socket & pigtails, so you'd splice on your wire to extend to the
final destination.
Charlie
On Thu, Aug 23, 2018 at 5:36 AM, bob noffs <icubob@gmail.com> wrote:
> i started wiring my ovm and i have a question about auto relays. the
> contactor i have for the lead off my alternator really bugs me that i am
> adding 14 ounces just for this ''switch''. my alternator is rated at 37
> amps but the 40 and even 50 amp auto relays look like that have a ''faston
> tab'' for their terminal. are these terminals up to carrying the load from
> the alternator?
> bob
>
> On Thu, Aug 9, 2018 at 5:31 PM Charlie England <ceengland7@gmail.com>
> wrote:
>
>> I'm not (either) Bob, but...
>>
>> I assume you're talking about an internally regulated alternator. If you
>> have a copy of the 'Connection, go to drawing z13/8, 'all electric plane on
>> a budget'. You can copy the circuit shown for the Dynamo (upper right hand
>> and top center of the page). Just erase the dynamo/regulator parts and the
>> filter capacitor, and tie what's labeled as a red wire at the voltage
>> regulator to the B lead of the alternator.
>>
>> Charlie
>>
>> On 8/9/2018 2:00 PM, bob noffs wrote:
>>
>> hi bob,
>> i am trying to do ov protection on a viking 110. b and c would have the
>> ovm blow a breaker and cut off current to coil in a relay. i think i have
>> seen drawings of yours where a contactor is used betweeen alternator and
>> main bus . can you direct me to a drawing that is as simple as you say. any
>> current for relays/ contactors would have to come straight from the
>> alternator. worst case with the honda is that both batteries must be taken
>> off line, leaving the alternator to provide spark.
>> thanks, bob noffs
>>
>> On Thu, Jul 12, 2018 at 7:49 AM, Robert L. Nuckolls, III <
>> nuckolls.bob@aeroelectric.com> wrote:
>>
>>> At 05:45 AM 7/12/2018, you wrote:
>>>
>>> well, i guess i should wire in a crowbar. seems like it should be pretty
>>> straight forward to have it break the circuit to the field. i will take a
>>> look in bob's book for ideas and go from there.
>>>
>>>
>>> The crowbar ov protection module can be added to
>>> any system wherein alternator field power is
>>> taken through a typical 5A breaker. The
>>> module is wired from field supply line to
>>> ground at any point downstream of that
>>> breaker. You can find examples in the Z-figures.
>>>
>>>
>>> Bob . . .
>>>
>>
>>
>>
>>
>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> Virus-free.
>> www.avast.com
>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link>
>> <#m_-5149255066127419438_m_4793364182841804945_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>
>
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 |
|
According to page 8 this document from TE Connectivity using 10AWG, the ampacity
is 24 amps continuous or 48 amp intermittent.
http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=82004_FASTON_TERMINALS_-_FULL_CATALOG&DocType=CS&DocLang=EN
Chances are that your RV-12 will use about 10 amps continuous, up to 20 intermittent.
If you expect to use the full capacity of your alternator continuously,
then a faston terminal would be stressed. I would be comfortable using the
relay with faston terminals. You have a 40 hour test period to try it out.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482646#482646
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 |
|
so to make this even more confusing a site called ''wirebarn.com'' has a
wire size calculator that says 12 ga is good for 40 amps up to about 4 feet
and the faston site says the .375'' tab is good for 40 amps.anyone have any
comment or experience with these stats?
bob noffs
On Thu, Aug 23, 2018 at 7:50 AM user9253 <fransew@gmail.com> wrote:
>
> According to page 8 this document from TE Connectivity using 10AWG, the
> ampacity is 24 amps continuous or 48 amp intermittent.
>
> http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=82004_FASTON_TERMINALS_-_FULL_CATALOG&DocType=CS&DocLang=EN
> Chances are that your RV-12 will use about 10 amps continuous, up to 20
> intermittent. If you expect to use the full capacity of your alternator
> continuously, then a faston terminal would be stressed. I would be
> comfortable using the relay with faston terminals. You have a 40 hour test
> period to try it out.
>
> --------
> Joe Gores
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=482646#482646
>
>
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 |
|
At 05:36 AM 8/23/2018, you wrote:
>i started wiring my ovm and i have a question
>about auto relays. the contactor i have for the
>lead off my alternator really bugs me that i am
>adding 14 ounces just for this ''switch''. my
>alternator is rated at 37 amps but the 40 and
>even 50 amp auto relays look like that have a
>''faston tab'' for their terminal. are these
>terminals up to carrying the load from the alternator?
>=C2 bob
You might consider this product:
https://goo.gl/UAVJMw
I have no experience with these . . . I'm
going to order one to peek and poke at . . .
but the specs are right.
I'd wire the b-lead up with 6AWG welding
cable.
https://goo.gl/BxAj1V
Bob . . .
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: | DPDT Toggle switch for BAT and 2 Alternators? |
To keep things simple I was thinking about using the Honeywell DPDT on/on/on toggle
switch for switching on BAT + Alternator 1 & Alternator 2 (aux alt) at the
same time. The design would include one main battery and the IBBS standby bat.
Switch position logic:
1. BAT + ALT 1 & ALT 2
2. BAT
3. OFF
To manually switch of either ALT 1 or ALT 2 I would have to pull either ALT1 or
ALT2 field CBs positioned after the main switch. I understand 2 possible design
problems:
1. The wire going to the main switch feeding the ALT fields has no protection
2. The switch would be a single point of failure
-any other problems I am missing with this setup?
thanks!
https://www.steinair.com/product/locking-toggle-switch-dpdt-ononon/
--------
Igor
RV10 in progress
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482649#482649
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 |
|
At 09:04 AM 8/23/2018, you wrote:
>so to make this even more confusing a site called
>''<http://wirebarn.com>wirebarn.com'' has a wire size calculator
>that says 12 ga is good for 40 amps up to about 4 feet and the
>faston site says the .375'' tab is good for 40 amps.anyone have any
>comment or experience with these stats?
I would discourage running an alternator b-lead
through a fast-on tab. Components with threaded
fasteners for fat wire termination are demonstrably
low risk. The relay I cited earlier offers
this feature. #6 welding cable is SOFT and FLEXIBLE
hence transfers small installation/operation stresses to
the relay's terminals and is VERY capable of
carrying alternator outputs up to and including
70A.
Bob . . .
Message 8
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: DPDT Toggle switch for BAT and 2 Alternators? |
One overlooked problem is the $72 cost of the switch plus shipping. :-)
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482651#482651
Message 9
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 |
|
On the topic of soft and flexible welding cable, we have a supplier up here
(Alaska) who developed soft flexible wire for use in cold environments
called Arctic Ultraflex. It is almost a flexible as welding cable, and is
available in much smaller sizes. The only downside I have found is that the
insulation can be cut quite easily, so protection is important. The
supplier is Polar Wire but surely this produce is not unique.
http://www.polarwire.com/
On Thu, Aug 23, 2018 at 9:28 AM Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> At 09:04 AM 8/23/2018, you wrote:
>
> so to make this even more confusing a site called ''wirebarn.com'' has a
> wire size calculator that says 12 ga is good for 40 amps up to about 4 feet
> and the faston site says the .375'' tab is good for 40 amps.anyone have any
> comment or experience with these stats?
>
>
> I would discourage running an alternator b-lead
> through a fast-on tab. Components with threaded
> fasteners for fat wire termination are demonstrably
> low risk. The relay I cited earlier offers
> this feature. #6 welding cable is SOFT and FLEXIBLE
> hence transfers small installation/operation stresses to
> the relay's terminals and is VERY capable of
> carrying alternator outputs up to and including
> 70A.
>
>
> Bob . . .
>
Message 10
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: DPDT Toggle switch for BAT and 2 Alternators? |
At 12:28 PM 8/23/2018, you wrote:
>
>One overlooked problem is the $72 cost of the switch plus shipping.
It's also a single point of failure for lots
of stuff.
Bob . . .
Message 11
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 |
|
i swear i have been to that site a dozen times and never saw that relay.
just ordered it. thanks bob.
bob noffs
On Thu, Aug 23, 2018 at 12:59 PM Ken Ryan <keninalaska@gmail.com> wrote:
> On the topic of soft and flexible welding cable, we have a supplier up
> here (Alaska) who developed soft flexible wire for use in cold environments
> called Arctic Ultraflex. It is almost a flexible as welding cable, and is
> available in much smaller sizes. The only downside I have found is that the
> insulation can be cut quite easily, so protection is important. The
> supplier is Polar Wire but surely this produce is not unique.
> http://www.polarwire.com/
>
>
> On Thu, Aug 23, 2018 at 9:28 AM Robert L. Nuckolls, III <
> nuckolls.bob@aeroelectric.com> wrote:
>
>> At 09:04 AM 8/23/2018, you wrote:
>>
>> so to make this even more confusing a site called ''wirebarn.com'' has a
>> wire size calculator that says 12 ga is good for 40 amps up to about 4 feet
>> and the faston site says the .375'' tab is good for 40 amps.anyone have any
>> comment or experience with these stats?
>>
>>
>> I would discourage running an alternator b-lead
>> through a fast-on tab. Components with threaded
>> fasteners for fat wire termination are demonstrably
>> low risk. The relay I cited earlier offers
>> this feature. #6 welding cable is SOFT and FLEXIBLE
>> hence transfers small installation/operation stresses to
>> the relay's terminals and is VERY capable of
>> carrying alternator outputs up to and including
>> 70A.
>>
>>
>> Bob . . .
>>
>
Message 12
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: | Arctic super-flex wire |
At 12:53 PM 8/23/2018, you wrote:
>On the topic of soft and flexible welding cable,
>we have a supplier up here (Alaska) who
>developed soft flexible wire for use in cold
>environments called Arctic Ultraflex. It is
>almost a flexible as welding cable, and is
>available in much smaller sizes. The only
>downside I have found is that the insulation can
>be cut quite easily, so protection is important.
>The supplier is Polar Wire but surely this
>produce is not unique.=C2
<http://www.polarwire.com/>http://www.polarwire.com
Interesting product line. I'll study the
wire more closely when I have time. I do
note that the insulation is rated for 105C
which is probably fine for what we do.
Bob . . .
Message 13
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: Arctic super-flex wire |
Bob, would you like some samples? I have cutoffs etc. laying around.
Ken
On Thu, Aug 23, 2018 at 11:59 AM Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> At 12:53 PM 8/23/2018, you wrote:
>
> On the topic of soft and flexible welding cable, we have a supplier up
> here (Alaska) who developed soft flexible wire for use in cold environmen
ts
> called Arctic Ultraflex. It is almost a flexible as welding cable, and is
> available in much smaller sizes. The only downside I have found is that t
he
> insulation can be cut quite easily, so protection is important. The
> supplier is Polar Wire but surely this produce is not unique.=C3=82
> http://www.polarwire.com
>
>
> Interesting product line. I'll study the
> wire more closely when I have time. I do
> note that the insulation is rated for 105C
> which is probably fine for what we do.
>
>
> Bob . . .
>
Message 14
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: Arctic super-flex wire |
At 03:07 PM 8/23/2018, you wrote:
>Bob, would you like some samples? I have cutoffs etc. laying around.
Sure! PO Box 130, Medicine Lodge, KS 67104-0130
Thanks!
Bob . . .
Message 15
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: | Jabiru 3300 voltage regulator |
We have a Jabiru 3300 on a Zenith STOL CH750 and I'm trying to understand
the inner workings of the voltage regulator that Jabiru supplies. I asked
on the Jabiru forum but didn't get any useful insight. Does anyone on this
list happen to know what goes on inside that unit?
One of my puzzles is: on Jabiru's wiring diagram it show which pins on the
regulator's connector go where, and it lists, among others, these two:
"*RED to battery + via relay*" - presumably this is the output to charge
the battery and power the plane's electrical system
"*YELLOW voltage control - J160C to main bus, other models to battery +*"
- is this a feedback signal from the battery into the regulator's sense
circuit? if so, that might explain why not *via* *relay*. And why would it
connect to a different place in one model of airplane (the J160C is a
Jabiru certified plane) than in others?
If anyone cares to look, the diagram I mention is on page 269 of the Jabiru
Aircraft Technical Manual JTM001-8
<https://jabiru.net.au/wp-content/uploads/2018/05/JTM001-8.pdf>
Message 16
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: DPDT Toggle switch for BAT and 2 Alternators? |
Plenty on eBay: 10.00 or so
John
Sent from my iPad
----x--O--x----
> On 23 Aug 2018, at 6:28 pm, user9253 <fransew@gmail.com> wrote:
>
>
> One overlooked problem is the $72 cost of the switch plus shipping. :-)
>
> --------
> Joe Gores
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=482651#482651
>
>
>
>
>
>
>
>
>
Message 17
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: Arctic super-flex wire |
Short lengths of 12,10,8 and 4awg are on the way. Let us know what you
think.
Sent from my Android. Sorry Steve.
On Thu, Aug 23, 2018, 12:49 Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> At 03:07 PM 8/23/2018, you wrote:
>
> Bob, would you like some samples? I have cutoffs etc. laying around.
>
>
> Sure! PO Box 130, Medicine Lodge, KS 67104-0130
>
> Thanks!
>
>
> Bob . . .
>
Message 18
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: Jabiru 3300 voltage regulator |
At 04:12 PM 8/23/2018, you wrote:
>We have a Jabiru 3300 on a Zenith STOL CH750 and
>I'm trying to understand the inner workings of
>the voltage regulator that Jabiru supplies. I
>asked on the Jabiru forum but didn't get any
>useful insight. Does anyone on this list happen
>to know what goes on inside that unit?
>
>One of my puzzles is: on Jabiru's wiring diagram
>it show which pins on the regulator's connector
>go where, and it lists, among others, these two:
>"RED to battery=C2 + via relay" - presumably this
>is the output to charge the battery and power the plane's electrical system
>"YELLOW voltage control - J160C to main bus,
>other models to battery=C2 +"=C2 - is this a
>feedback signal from the battery into the
>regulator's sense circuit? if so, that might
>explain why not via relay. And why would it
>connect to a different place in one model of
>airplane (the J160C is a Jabiru certified plane) than in others?
>
>If anyone cares to look, the diagram I mention
>is on page 269 of the
><https://jabiru.net.au/wp-content/uploads/2018/05/JTM001-8.pdf>Jabiru
>Aircraft Technical Manual JTM001-8
I would guess that yellow is a sense lead. Exactly
WHY they do certain things in their architecture
is perhaps a down-under state secret.
I've had some email contact with the factory
about 10 years ago trying to resolve similar
questions but I've never been able to talk with
anyone who really understood the system. All
I could get out of them is "that's what the
diagrams have always shown . . . and YOU
are the only one complaining about them."
It's been my observation that people who design
engines should stay out of the electrical system
business . . . same for Rotax . . .
Bob . . .
Message 19
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: DPDT Toggle switch for BAT and 2 Alternators? |
At 11:49 AM 8/23/2018, you wrote:
>
>To keep things simple I was thinking about using the Honeywell DPDT
>on/on/on toggle switch for switching on BAT + Alternator 1 &
>Alternator 2 (aux alt) at the same time. The design would include
>one main battery and the IBBS standby bat.
Really wish you wouldn't do that. Suggest you take
one of the Z-figures and identify features that do
not meet your design goals . . . then get with the
gurus here on the List to sort out your options.
Unless you've been doing this for a long time, there's
significant risk that 'simplifications' move your
risk factors in the wrong direction.
Bob . . .
Message 20
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: Arctic super-flex wire |
At 06:14 PM 8/23/2018, you wrote:
>Short lengths of 12,10,8 and 4awg are on the way. Let us know what you think.
Thanks!
Bob . . .
Message 21
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: | Ground power connector solenoid issue |
Hi all,
I'm building an RV-10 and wanted to have a GPU connector for convenience,
and used Bob's excellent article to do so:
http://www.aeroelectric.com/articles/grndpwr.pdf
I built the version with over-voltage protection, though I left out the
indicator light. I have it all wired up but not connected to the battery
or battery solenoid yet. The output wire is connected to the GPU solenoid
but just hanging in space (and well insulated to prevent shorts while
testing).
I applied 12V from a lawn tractor battery to the connector, and sure
enough the solenoid closes and 12V appears on the output. Then I open the
CB to make sure that it's working, apply power, and the solenoid closed
again! I started debugging and what I found is that the S terminals on
the solenoid have a low resistance path to the solenoid case with nothing
at all connected to them. One has a resistance of about 4 ohms to the
case, the other about 15 ohms. The resistance between the S terminals is
about 16.5 ohms, which is darn close to spec. The solenoid will close
with nothing but the diode connected from the input side to the S1
terminal, and the S2 terminal with nothing on it! This is a Sky-Tec
STS-A12, which is definitely the right part.
Sounds like a bad solenoid? This thing is new but I purchased it a couple
years ago from ACS so I don't know if I can get it replaced at this point.
It was too late to call Sky-Tec today but if this is truly defective I
think they'd want to know about it.
Anyone else ever see this? Anything simple I'm overlooking?
Kent Ogden
Message 22
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: Jabiru 3300 voltage regulator |
If the Jabiru voltage regulator functions the same as the Ducati regulator used
on the Rotax, then the Jabiru
regulator yellow control wire functions both as a regulator enable and voltage
sense.
I find the Jabiru wiring diagram difficult to read. It appears that the yellow
control wire connects
to the left side of the 60 amp inline fuse. But that wire is not marked on the
diagram.
If it were my plane, I would wire it according to Bob's Z-16,
except substitute a 30 amp inline fuse in place of the 16awg fuselink.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482676#482676
Message 23
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: Ground power connector solenoid issue |
It sure sounds like the contactor coil is shorted to the case.
There is a SERVICE BULLETIN for that contactor, but it describes a different failure
than what you describe.
http://skytec.aero/wp-content/uploads/2017/10/HET-ASB-072.pdf
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482677#482677
Message 24
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: Jabiru 3300 voltage regulator |
Thanks for that Joe. Now that I have taken a look at Z-16 I like it for a
number of reasons. One of them is that the alternator relay is on the
alternator (it's called dynamo on the figure) output *into *the voltage
regulator. I had been imagining putting the relay in the regulator's
output. I'm guessing that the regulator would be happier with no input than
full input and open circuit output. But since we don't know what's inside
that thing...
On Thu, Aug 23, 2018 at 8:42 PM user9253 <fransew@gmail.com> wrote:
>
> If the Jabiru voltage regulator functions the same as the Ducati regulator
> used on the Rotax, then the Jabiru
> regulator yellow control wire functions both as a regulator enable and
> voltage sense.
> I find the Jabiru wiring diagram difficult to read. It appears that the
> yellow control wire connects
> to the left side of the 60 amp inline fuse. But that wire is not marked
> on the diagram.
> If it were my plane, I would wire it according to Bob's Z-16,
> except substitute a 30 amp inline fuse in place of the 16awg fuselink.
>
> --------
> Joe Gores
>
>
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! --
|