Hi! William /All.
When I had G-PTAG Three times on inspection I found that the continuation c
onnectors 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 contact area and
were arcing generating heat from sparking . I didn't find a solution to the
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
clamp connectors would generate less heat from arcing , which in turn woul
d remove radio interference and potential for fire.
regards
Bob Harrison .......Ex G-PTAG.
.
> On 18 December 2022 at 13:50 William Daniell <wdaniell.longport@gmail.com
> wrote:
>
>
>
>
>
> Radio Noise
>
>
>
> If you are getting radio noise that seems to be alternator-related, y
ou can use your multimeter to do a quick check of the alternator output vol
tage. Set your meter to AC voltage and measure from the main bus to ground
while the 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. Remem
ber, 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 be
tter way to check stator and diode condition, but most amateur builders wil
l not have one in their toolbox.
>
>
>
>
> On Sun, Dec 18, 2022 at 08:36 Pete <peterz@zutrasoft.com mailto:peter
z@zutrasoft.com > wrote:
>
mailto:peterz@zutrasoft.com >
> >
> > Curious, what is =9Ca bit=9D?
> >
> > > On Dec 18, 2022, at 8:28 AM, William Daniell <wdaniell.longpo
rt@gmail.com mailto:wdaniell.longport@gmail.com > wrote:
> > >
> > > So my snazzy BandC voltage regulator is outputting a bit of A
C 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 manufactur
ing issue since this was one of the first produced.
> > >
> > > So my question is who has overvoltage protection AND expensiv
e avionics?
> > >
> > > I had an old style OVP with a relay/crowbar etc which I stupi
dly trashed 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 regula
tor and fly without OVP pending the arrival of my new (and hopefully improv
ed) BandC or just be patient.? (My name is Will and Im a flying
addict)
> > >
> > >
> > > --
> > > William Daniell
> > > LONGPORT
> > > +1 786 878 0246
> >
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> > > --
> William Daniell
> LONGPORT
> +1 786 878 0246
>
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