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Re: Europa-List: OVP

Subject: Re: Europa-List: OVP
From: Pete <peterz@zutrasoft.com>
Date: Mon, 19 Dec 2022 05:06:43
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
>> 
>>  


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