From: Ernest Christley <echristley@att.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tuesday, August 23, 2011 12:23 PM
Subject: [FlyRotary] Re: The Case for Solid state Relays (SSR)

Kelly Troyer wrote:
>
> Ed & Group,
>        I brought up the question of possible use of Solid State Relays (SSR) to replace the
> electro-mechanical contactors most of us use in our flying electrical systems but I need to depend on the smarter "EE" (Electronic Engineer) types of our group to tell me if this
> would be a good idea......
>  http://www.power-io.com/products/hdd.htm
>  http://www.power-io.com/library/databulletin/hdd-family.pdf
>  http://www.power-io.com/library/databulletin/hdd-e-family.pdf
> 

I tried using one of these.  I know my situation is different, in that I'm using a generator, not an alternator.  The issue I ran up against is that the regulator could not sense the bus voltage, and never turned on.  It least, that is what I suspect the problem was.  I wasn't getting any voltage out of the regulator with the SSR installed.  I replaced it with a fusible link, and now everything works just fine.

--
Homepage:  http://www.flyrotary.com/
Archive and UnSub:  http://mail.lancaironline.net:81/lists/flyrotary/List.html