Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Z31-B Ground power disconnect?

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> AeroElectric-List
View previous topic :: View next topic  
Author Message
scott(at)randolphs.net
Guest





PostPosted: Tue Feb 14, 2006 3:56 pm    Post subject: Z31-B Ground power disconnect? Reply with quote

Reviewing the diagram of the "piper" style ground power plug in Z-31B it
appears that once external power is applied, the contactor would stay
energized forever (at least until the battery was killed) since the
engergizing current would flow backward through the contactor and through
the solenoid coil. Is there a key point I'm missing or is an interrupt
switch of some kind called for?

Thanks!


- 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
Back to top
nuckollsr(at)cox.net
Guest





PostPosted: Wed Feb 15, 2006 5:28 am    Post subject: Z31-B Ground power disconnect? Reply with quote

At 03:54 PM 2/14/2006 -0800, you wrote:

Quote:


Reviewing the diagram of the "piper" style ground power plug in Z-31B it
appears that once external power is applied, the contactor would stay
energized forever (at least until the battery was killed) since the
engergizing current would flow backward through the contactor and through
the solenoid coil. Is there a key point I'm missing or is an interrupt
switch of some kind called for?

Yup, it's called the ground power control switch illustrated
in this case as a switch-breaker in the lower left quadrant
of the drawing. If you want to use a miniature push-pull breaker,
then an additional switch is called for . . . or you could use
the breaker itself as the controlling device. It's a VERY low
usage item and I'd have no heartburn about using the breaker
as a switch in this case.

Bob . . .


- 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
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> AeroElectric-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group