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 

Is the OVP 5 A CB supposed to trip when I switch off the

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





PostPosted: Sat May 26, 2018 9:54 pm    Post subject: Is the OVP 5 A CB supposed to trip when I switch off the Reply with quote

At 06:06 PM 5/26/2018, you wrote:
Quote:
​So I take it that it's not supposed to trip?

I have separate switches for the battery and alternator and they do what they are supposed to.  I don't have a diode installed. Is this critical?

So Z16 has been modified . . .


Quote:
ALT and the BATT are connected to the starter contactor as per Z16 (well actually Z16v shows the buss connected to the battery contractor but it looks electrically equivalent from the diagram)

So...everything is normal. I can start the engine switch on the loads - I see the ammeter reacting to the loads, the alternator is charging the battery and running all the loads. ​  the System is at 12.8V.

I can switch the battery off and all remains the same.

But when I switch the ALT off the OVP trips. The amps go negative while the ALT is off. I can immediately reset the 5amp CB and switch on the ALT and everything is goes back to normal.

Could the OVP be reacting to a sudden Volt surge caused by the battery taking up the loads?

Wire per Z16 with 700-2-10, progressive transfer
switch . . . battery should not be OFF
with alternator ON . . . the wiring shown
in Z16 mirrors the legacy switching protocols
adopted for TC aircraft about 50 years ago.



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