Today's Message Index:
----------------------
1. 12:05 AM - Re: OVP (Alan Burrill)
2. 01:45 AM - Re: OVP (Bob Harrison)
3. 02:07 AM - Re: OVP (Pete)
4. 02:48 AM - Re: OVP (Monoman)
5. 03:22 AM - Re: Re: OVP (Pete Zut)
6. 03:36 AM - Re: Re: OVP (Alan Burrill)
7. 03:53 AM - Re: Re: OVP (D McFadyean)
8. 05:17 AM - Re: OVP (Monoman)
9. 06:58 AM - Re: Re: OVP (D McFadyean)
10. 08:10 AM - Re: Re: OVP (William Daniell)
11. 08:38 AM - Re: Re: OVP (Paul Mansfield)
12. 12:16 PM - Re: OVP (h&jeuropa)
Message 1
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Message 2
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I hear what you say but the nature of spade connectors utilise a knife (mal
e) connector into a female receptor and they can spark.....I've seen them a
rcing .....put your head in the sand and ignore it at your peril. The reas
on I had three examples of molten connector assembly speaks volumes, not wi
thstanding the original "posting on subject" reported the same issue. In
test conditions the connectors may be adequately rated but subject them to
vibration and that rating is obviously open to question, in other words "th
ey are shit".
regards.
Bob Harrison ex G-PTAG.
regards
Bob Harrison
> On 19 December 2022 at 08:04 Alan Burrill <alanb@dpy01.co.uk> wrote:
>
> Spade connectors of that size are rated to 10 amp and 300v according
to the R/S-Components specification sheet.
>
> Alan
>
> Sent from my iPad
>
>
> > > On 18 Dec 2022, at 21:53, Bob Harrison <ptag.dev@talktalk.net
> wrote:
> >
> >
> > >
> > >
> > Hi! William /All.
> >
> > When I had G-PTAG Three times on inspection I found that the co
ntinuation connectors from the alternator standard Rotax wires where I had
a rubberlite connection assembly taking the electrical power into the panel
/regulator I discovered the lot all heat welded together.
> >
> > I found that the spade connectors did not have sufficient conta
ct area and were arcing generating heat from sparking . I didn't find a sol
ution to the problem which was initiated by Rotax using spade connectors on
the power delivery spades which only have knife edge contact area . Some f
orm of screw clamp connectors would generate less heat from arcing , which
in turn would remove radio interference and potential for fire.
> >
> > regards
> >
> >
> > Bob Harrison .......Ex G-PTAG.
> >
> > .
> >
> > > > > On 18 December 2022 at 13:50 William Daniell <wdaniel
l.longport@gmail.com> wrote:
> > >
> > >
> > >
> > >
> > >
> > > Radio Noise
> > >
> > >
> > >
> > > If you are getting radio noise that seems to be alternato
r-related, you can use your multimeter to do a quick check of the alternato
r output voltage. Set your meter to AC voltage and measure from the main bu
s to ground while the engine is running. If you see more than one volt in t
he AC scale, suspect a blown diode inside the alternator or possibly bad br
ushes. Remember, the alternator is only supposed to output DC voltage. This
isn=99t a perfect test, but it is quick and easy. A ripple meter is
an even better way to check stator and diode condition, but most amateur bu
ilders will not have one in their toolbox.
> > >
> > >
> > >
> > >
> > > On Sun, Dec 18, 2022 at 08:36 Pete <peterz@zutrasoft.com
mailto:peterz@zutrasoft.com > wrote:
> > >
rz@zutrasoft.com mailto:peterz@zutrasoft.com >
> > > >
> > > > Curious, what is =9Ca bit=9D?
> > > >
> > > > > On Dec 18, 2022, at 8:28 AM, William Daniell <wda
niell.longport@gmail.com mailto:wdaniell.longport@gmail.com > wrote:
> > > > >
> > > > > So my snazzy BandC voltage regulator is outputtin
g a bit of AC and getting hot. To be fair =9Cnewish=9D means 3
years old. The BandC includes and OVP unit. I am assuming that this is
a manufacturing issue since this was one of the first produced.
> > > > >
> > > > > So my question is who has overvoltage protection
AND expensive avionics?
> > > > >
> > > > > I had an old style OVP with a relay/crowbar etc w
hich I stupidly trashed when I got my new BandC so I cant simply put it bac
k in.
> > > > >
> > > > > So should I put in my old but (fully functional)
rotax regulator and fly without OVP pending the arrival of my new (and hope
fully improved) BandC or just be patient.? (My name is Will and
Im a flying addict)
> > > > >
> > > > >
> > > > > --
> > > > > William Daniell
> > > > > LONGPORT
> > > > > +1 786 878 0246
> > > >
> > > > ==========
> > > > pa-List" rel="noreferrer" target="_blank">http:
//www.matronics.com/Navigator?Europa-List
> > > > ==========
> > > > FORUMS -
> > > > eferrer" target="_blank">http://forums.matronics.
com
> > > > ==========
> > > > WIKI -
> > > > errer" target="_blank">http://wiki.matronics.com
> > > > ==========
> > > > b Site -
> > > > -Matt Dralle, List Admin.
> > > > ="noreferrer" target="_blank">https://matronics
.com/contribution
> > > > ==========
> > > >
> > > >
> > > >
> > > >
> > > > > > > --
> > > William Daniell
> > > LONGPORT
> > > +1 786 878 0246
> > >
> > > > >
> >
> >
> >
> > >
Message 3
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and why assume that the BandC is delivered with plated (i can
=99t remember with what) replacement connectors in an attempt to carry more c
urrent without overheating, per their instructions.
I have no idea if they are effective, but mine are not (yet?) charring fwiw.
PeteZ
> On Dec 19, 2022, at 3:12 AM, Alan Burrill <alanb@dpy01.co.uk> wrote:
>
> =EF=BBSpade connectors of that size are rated to 10 amp and 300v accord
ing to the R/S-Components specification sheet.
>
> Alan
>
> Sent from my iPad
>
>>> On 18 Dec 2022, at 21:53, Bob Harrison <ptag.dev@talktalk.net> wrote:
>>>
>> =EF=BB
>> Hi! William /All.
>>
>> When I had G-PTAG Three times on inspection I found that the continuation
connectors from the alternator standard Rotax wires where I had a rubberlit
e connection assembly taking the electrical power into the panel/regulator I
discovered the lot all heat welded together.
>>
>> I found that the spade connectors did not have sufficient contact area an
d were arcing generating heat from sparking . I didn't find a solution to th
e problem which was initiated by Rotax using spade connectors on the power d
elivery spades which only have knife edge contact area . Some form of screw c
lamp connectors would generate less heat from arcing , which in turn would r
emove radio interference and potential for fire.
>>
>> regards
>>
>>
>>
>> Bob Harrison .......Ex G-PTAG.
>>
>> .
>>
>>> On 18 December 2022 at 13:50 William Daniell <wdaniell.longport@gmail.co
m> wrote:
>>>
>>> Radio Noise
>>>
>>> If you are getting radio noise that seems to be alternator-related, you c
an use your multimeter to do a quick check of the alternator output voltage.
Set your meter to AC voltage and measure from the main bus to ground while t
he engine is running. If you see more than one volt in the AC scale, suspect
a blown diode inside the alternator or possibly bad brushes. Remember, the a
lternator is only supposed to output DC voltage. This isn=99t a perfec
t test, but it is quick and easy. A ripple meter is an even better way to ch
eck stator and diode condition, but most amateur builders will not have one i
n their toolbox.
>>>
>>>
>>> On Sun, Dec 18, 2022 at 08:36 Pete <peterz@zutrasoft.com> wrote:
>>>
>>> Curious, what is =9Ca bit=9D?
>>>
>>> > On Dec 18, 2022, at 8:28 AM, William Daniell <wdaniell.longport@gmail.
com> wrote:
>>> >
>>> > So my snazzy BandC voltage regulator is outputting a bit of AC and get
ting hot. To be fair =9Cnewish=9D means 3 years old. The BandC
includes and OVP unit. I am assuming that this is a manufacturing issue s
ince this was one of the first produced.
>>> >
>>> > So my question is who has overvoltage protection AND expensive avionic
s?
>>> >
>>> > I had an old style OVP with a relay/crowbar etc which I stupidly trash
ed when I got my new BandC so I cant simply put it back in.
>>> >
>>> > So should I put in my old but (fully functional) rotax regulator and f
ly without OVP pending the arrival of my new (and hopefully improved) BandC o
r just be patient.? (My name is Will and Im a flying addict)
>>> >
>>> >
>>> > --
>>> > William Daniell
>>> > LONGPORT
>>> > +1 786 878 0246
>>>
>>> ===========
>>> pa-List" rel="noreferrer" target="_blank">http://www.matronics.com/N
avigator?Europa-List
>>> ===========
>>> FORUMS -
>>> eferrer" target="_blank">http://forums.matronics.com
>>> ===========
>>> WIKI -
>>> errer" target="_blank">http://wiki.matronics.com
>>> ===========
>>> b Site -
>>> -Matt Dralle, List Admin.
>>> ="noreferrer" target="_blank">https://matronics.com/contribution
>>> ===========
>>>
>>>
>>>
>>> --
>>> William Daniell
>>> LONGPORT
>>> +1 786 878 0246
>>
>>
Message 4
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After a little research I think I now know what this thread is about and have a
couple of questions.
1. Is this a straight replacement for the Ducati units?
2. Does the ducati unit contain OVP?
3. I have just fitted an Earth X battery (but not yet run the engine), will this
charge OK using the original Ducati regulator?
Sorry for my electrical ignorance.
Cheers
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=509717#509717
Message 5
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1 - yip!
2- Nope
3 - it may? but the BandC has an adjustable/settable output for the higher
requirements of the EarthX
-PeteZ
On Mon, Dec 19, 2022 at 5:55 AM Monoman <mike@nyumba.co.uk> wrote:
>
> After a little research I think I now know what this thread is about and
> have a couple of questions.
> 1. Is this a straight replacement for the Ducati units?
> 2. Does the ducati unit contain OVP?
> 3. I have just fitted an Earth X battery (but not yet run the engine),
> will this charge OK using the original Ducati regulator?
> Sorry for my electrical ignorance.
>
> Cheers
>
>
Message 6
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Message 7
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Ducati regulators vary. My last regulator's output was 13.79v, which was not enough
even for a Red Top battery let alone Lithium. Fairly easily fixed though.
Duncan mcF.
> On 19 December 2022 at 11:35 Alan Burrill <alanb@dpy01.co.uk> wrote:
>
> I have an EarthX and the Rotax Ducati Regulator. It charges the EarthX and
not had any problems.
>
> Alan
>
> Sent from my iPhone
>
>
> > > On 19 Dec 2022, at 11:23, Pete Zut <peterz@zutrasoft.com> wrote:
> >
> >
> > >
> > > 1 - yip!
> > 2- Nope
> > 3 - it may? but the BandC has an adjustable/settable output for the
higher requirements of the EarthX
> >
> > -PeteZ
> >
> > On Mon, Dec 19, 2022 at 5:55 AM Monoman <mike@nyumba.co.uk mailto:mike@nyumba.co.uk > wrote:
> >
> > >
> > > After a little research I think I now know what this thread is
about and have a couple of questions.
> > > 1. Is this a straight replacement for the Ducati units?
> > > 2. Does the ducati unit contain OVP?
> > > 3. I have just fitted an Earth X battery (but not yet run the
engine), will this charge OK using the original Ducati regulator?
> > > Sorry for my electrical ignorance.
> > >
> > > Cheers
> > >
> > >
> > >
> > > > >
> > >
Message 8
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Thanks chaps for the replies I now have a better grip and at least know that it
shouldn't blow up upon engine start.
Duncan, you mention that a low charge rate was easily fixed, can you let me know
how?
Thanks
Mike
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=509721#509721
Message 9
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Lots of references to this in Forum the archives and elsewhere. e.g. Europa forum
on Sun May 02, 2021 3:31 pm
http://forums.matronics.com/viewtopic.php?t=16776904&highlight=shottky
Duncan McF.
> On 19 December 2022 at 13:16 Monoman <mike@nyumba.co.uk> wrote:
>
>
>
> Thanks chaps for the replies I now have a better grip and at least know that
it shouldn't blow up upon engine start.
> Duncan, you mention that a low charge rate was easily fixed, can you let me know
how?
> Thanks
> Mike
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=509721#509721
>
>
>
>
>
>
>
>
>
Message 10
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The bandc charges as 14.4 volts from the box but is adjustable and does
have OVP built in.
Plugs straight in.
It's a lot nicer looking than the rotax item but costs USD300....
Will
William Daniell
LONGPORT
+1 786 878 0246
On Mon, Dec 19, 2022 at 6:24 AM Pete Zut <peterz@zutrasoft.com> wrote:
> 1 - yip!
> 2- Nope
> 3 - it may? but the BandC has an adjustable/settable output for the
> higher requirements of the EarthX
>
> -PeteZ
>
> On Mon, Dec 19, 2022 at 5:55 AM Monoman <mike@nyumba.co.uk> wrote:
>
>>
>> After a little research I think I now know what this thread is about and
>> have a couple of questions.
>> 1. Is this a straight replacement for the Ducati units?
>> 2. Does the ducati unit contain OVP?
>> 3. I have just fitted an Earth X battery (but not yet run the engine),
>> will this charge OK using the original Ducati regulator?
>> Sorry for my electrical ignorance.
>>
>> Cheers
>>
>>
>>
Message 11
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The cited reference only offers replacement options; is there any way of fi
xing a duff regulator? ... e.g. yours that had a low output: "last regulato
r's output was 13.79v" - how was that "easily fixed"?
Paul
G-PLPM
-----Original Message-----
From: owner-europa-list-server@matronics.com <owner-europa-list-server@matr
onics.com> On Behalf Of D McFadyean
Sent: 19 December 2022 14:58
Subject: Re: Europa-List: Re: OVP
--> <ami-mcfadyean@talktalk.net<mailto:ami-mcfadyean@talktalk.net>>
Lots of references to this in Forum the archives and elsewhere. e.g. Europa
forum on Sun May 02, 2021 3:31 pm
http://forums.matronics.com/viewtopic.php?t=16776904
Duncan McF.
> On 19 December 2022 at 13:16 Monoman <mike@nyumba.co.uk<mailto:mike@nyumb
a.co.uk>> wrote:
>
>
ke@nyumba.co.uk>>
>
> Thanks chaps for the replies I now have a better grip and at least know t
hat it shouldn't blow up upon engine start.
> Duncan, you mention that a low charge rate was easily fixed, can you let
me know how?
> Thanks
> Mike
>
>
>
>
> Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=509721
Message 12
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Will contacted me directly and here are my replies to several posts above.
The common failure for Ducatti are the internal diodes. Ducatti uses a full wave
rectifier circuit which has two SCR (controlled diodes) and two conventional
diodes. The mechanical construction fails on the conventional diodes. Electrically,
the diodes are connected to terminal G and terminal B so you can put external
diodes to substitute or replace the faulty internal ones. The original
diodes are rated at 1200 v and 45 A. You must also mount them on a heat sink.
If you use diodes, the heat sink will be at +12V. A better solution is by using
a bridge rectifier on a heat sink so the heat sink is electrically isolated.
The bridge rectifier is 36MB120A (Newark Electronics PN 48F1234) and heatsink
is Wakefield 403K (Newark Electronics PN 58F505). The rectifier is wired so
that the two yellow wires going to G on the Ducatti also go to the two inputs
on the rectifier (AC1 and AC2) and the wire coming from B on the Ducatti (output
voltage) is also connected to + on the rectifier. The terminal of the rectifier
is not connected to anything. Wiring diagram is attached. The same diagram
shows the diode for adjusting voltage and the crowbar OVP.
There was also a question about adjusting the voltage when using a Ducatti. To
make the output voltage higher, just insert a diode in the C lead which is the
voltage sense lead. That will make the regulator think the voltage is .5 volt
too low, and adjust cause the output to raise .5 volt. I have this in place to
get 14.2 for my EarthX. A 1N4001 will work fine.
Finally, my overvolt protection is a crowbar style purchased from B&C. I have a
relay that connects the regulator output to the aircraft buss. The crowbar is
across the coil of that relay, so if it trips, it will cause the relay to drop
out.
There was a guy on the RV12 list that made a robust copy of the Ducatti regulator
long before B&C produced theirs. I purchased the circuit board from him and
built my own. It works good and it will output 25 A all day long!
Jim Butcher
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=509734#509734
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