nuckolls.bob(at)aeroelect
Guest
|
 Posted: Sat Feb 28, 2009 11:11 am Post subject: E-bus and sd-8 alternator connections Z-13/8 Q |
 |
|
At 08:53 PM 2/25/2009, you wrote:
| Quote: |
I had one other thought...since I had the understanding that it
would not be good to run an alternator without the battery in line I
would use a double pole switch which would activate the e-bus
alternate feed and alternator at the same time thereby I would never
have the chance to turn the alternator (SD- on without the e-bus
on. Is this wise (correct).
Thanks
|
No, the idea behind the self-excitation modification to
the as-supplied SD-8 rectifier/regulator was to assist
it's stand alone capability. The noise from an SD-8
sans battery isn't outrageous. See:
http://www.aeroelectric.com/Pictures/Curves/SD-8_Noise_Data.pdf
On page 5 we see that the SD-8 lightly loaded (3A) with
10KuF capacitor of unknown pedigree and no battery was
about 1.9 volts Pk-Pk. On page 7 I measured only 160 mV
pk-pk with a new 47KuF capacitor and light load. Page
8 shows full load of about the same noise level.
Bottom line is that at worst you might hear some
130/260 Hz hum in the background if your capacitor
is soggy but at all other times, the SD-8 should
perform to design goals as a stand-alone energy
source.
Bob . . .
----------------------------------------)
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
----------------------------------------
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
