----------------------------------------------------------
                           AeroElectric-List Digest Archive
                                      ---
                     Total Messages Posted Tue 09/11/18: 2
           ----------------------------------------------------------
 
 
Today's Message Index:
----------------------
 
     1. 04:32 AM - Re: B-lead relay for IR Alternator  (bob noffs)
     2. 08:29 AM - Re: B-lead relay for IR Alternator  (Robert L. Nuckolls, III)
 
 
 
________________________________  Message 1  _____________________________________


Time: 04:32:14 AM PST US
From: bob noffs <icubob@gmail.com>
Subject: Re: AeroElectric-List: B-lead relay for IR Alternator

i ordered that relay and just got it installed for my b lead ovm. glad to
hear your report, bob. i was a little worried about the plastic mounting
point breaking so mine is mounted with the mounting point flat down against
a surface.
 bob noffs

On Sun, Sep 9, 2018 at 5:04 PM Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:

> At 10:07 AM 8/23/2018, you wrote:
>
> 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 ''fasto
n
> tab'' for their terminal. are these terminals up to carrying the load fro
m
> the alternator?
> =C3=82 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
>
>
>   I ordered one of those relays in to look at:
>   Here are the 'tear down' photos.
>
>   https://tinyurl.com/y7aw646a
>
>   This critter seems nicely built. The resting
>   current for the coil at 14v is about 0.3 amps
>   for an internal dissipation of about 4.5 watts.
>   Not seriously pushing it for this size package.
>   I think I would mount it with the terminals facing
>   down. This would cause any drips or condensate to
>   collect on the closeout panel . . . and
>   facilitate expulsion during the next
>   flight cycle.
>
>   At 4.5 watts it's too hot to keep your
>   hand on it . . . but battery contactors
>   do that too.
>
>   Internal 'werks' seem robust enough. The
>   stationary and moveable contacts both
>   feature precious alloy crowns.  I think
>   it's worth trying as the b-lead disconnect
>   relay in an ov management system on an
>   internally regulated alternator.
>
>
>   Bob . . .
>

________________________________  Message 2  _____________________________________


Time: 08:29:21 AM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
Subject: Re: AeroElectric-List: B-lead relay for IR Alternator

At 06:31 AM 9/11/2018, you wrote:
>i ordered that relay and just got it installed 
>for my b lead ovm. glad to hear your report, 
>bob. i was a little worried about the plastic 
>mounting point breaking so mine is mounted with 
>the mounting point flat down against a surface.
>=C2 bob noffs

   Yeah . . . I supecdt the housing is glass-filled
   nylon . . . pretty robust. But that's also why
   I suggested 'soft' fat-wires like welding cable.


   Bob . . . 

 

-------------------------------------------------------------------------------------
                       Other Matronics Email List Services
-------------------------------------------------------------------------------------
Post A New Message               aeroelectric-list@matronics.com
UN/SUBSCRIBE                     http://www.matronics.com/subscription
List FAQ                         http://www.matronics.com/FAQ/AeroElectric-List.htm
Web Forum Interface To Lists     http://forums.matronics.com
Matronics List Wiki              http://wiki.matronics.com
Full Archive Search Engine       http://www.matronics.com/search
7-Day List Browse                http://www.matronics.com/browse/aeroelectric-list
Browse Digests                   http://www.matronics.com/digest/aeroelectric-list
Browse Other Lists               http://www.matronics.com/browse
Live Online Chat!                http://www.matronics.com/chat
Archive Downloading              http://www.matronics.com/archives
Photo Share                      http://www.matronics.com/photoshare
Other Email Lists                http://www.matronics.com/emaillists
Contributions                    http://www.matronics.com/contribution
-------------------------------------------------------------------------------------

These Email List Services are sponsored solely by Matronics and through the 
generous Contributions of its members.