Matronics Email Lists :: View topic - O/Vprotection for internally regulated alternator

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

O/Vprotection for internally regulated alternator

Matronics Email Lists Forum Index -> AeroElectric-List

View previous topic :: View next topic

Author Message

1rv4

Joined: 11 Sep 2006
Posts: 24

Posted: Thu Oct 03, 2024 7:51 pm Post subject: O/Vprotection for internally regulated alternator

Hi

I seem to remember there was a crowbar type overvoltage protection device for internaly regulated alternators. It had a relay to disconnect the B-lead. Can anyone shed some light on this or maybe I had a bad dream? 

Thanks

Chris

- 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

Ceengland

Joined: 11 Oct 2020
Posts: 391
Location: MS

Posted: Fri Oct 04, 2024 6:18 pm Post subject: O/Vprotection for internally regulated alternator

Attached. Note that Bob later deleted references to using internally regulated alternators. But some versions of the Z figures using dynamo style alternators did include the relay & OV module depicted in the attached document. Also note that recent conversations on this list indicate that the SCR used in the OV module is no longer available. Bob is said to be working on an updated OV module.

Virus-free.www.avast.com[url=#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2][/url]



On Thu, Oct 3, 2024 at 10:56 PM 1rv4 <fconsult(at)telus.net (fconsult(at)telus.net)> wrote:



 	  Quote: 	
		  --> AeroElectric-List message posted by: "1rv4" <fconsult(at)telus.net (fconsult(at)telus.net)>

 

 Hi

 I seem to remember there was a crowbar type overvoltage protection device for internaly regulated alternators. It had a relay to disconnect the B-lead. Can anyone shed some light on this or maybe I had a bad dream? 

 Thanks

 Chris

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=513852#513852

 

 

 

 

 

 

 ===========

  -

 Electric-List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List

 ===========

  FORUMS -

 eferrer" target="_blank">http://forums.matronics.com

 ===========

 WIKI -

 errer" target="_blank">http://wiki.matronics.com

 ===========

 b Site -

           -Matt Dralle, List Admin.

 ="noreferrer" target="_blank">https://matronics.com/contribution

 ===========

- 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

Aeroelectric_crowbar_OV_module_plus_relay_CbOV-14_Installation_A.pdf

Description:

Download

Filename:

Aeroelectric_crowbar_OV_module_plus_relay_CbOV-14_Installation_A.pdf

Filesize:

570.68 KB

Downloaded:

27 Time(s)

_________________
Charlie

1rv4

Joined: 11 Sep 2006
Posts: 24

Posted: Sat Oct 05, 2024 8:43 am Post subject: Re: O/Vprotection for internally regulated alternator

Thankyou Charlie

 The attachment was very useful. I knew someone would remember.

   I wonder why Bob discontinued them? With the price of new alternators one would think the NOS Japanese made alternators would be a popular substitution.

   Chris

- 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

Ceengland

Joined: 11 Oct 2020
Posts: 391
Location: MS

Posted: Sat Oct 05, 2024 7:29 pm Post subject: O/Vprotection for internally regulated alternator

The older regulators in IR  alternators often didn't have 'load dump' protection. People were 'testing' their OV modules with the alternator under load, and the resulting voltage spike when the relay opened would kill the internal regulator. So instead of invoking the HeHaw Doctor  principle (if it hurts when you do that,  don't do that), the recommendation became,  don't use IR alternators. 

 Get BlueMail for Android 

 On Oct 5, 2024, at 11:43 AM, 1rv4 <fconsult(at)telus.net (fconsult(at)telus.net)> wrote: 	  Quote: 	
		    	  Quote: 	
		  --> AeroElectric-List message posted by: "1rv4" <fconsult(at)telus.net>Thankyou Charlie The attachment was very useful. I knew someone would remember.   I wonder why Bob discontinued them? With the price of new alternators one would think the NOS Japanese made alternators would be a popular substitution.   ChrisRead this topic online here:http://forums.matronics.com/viewtopic.php?p=51385/www.matronics.com/Navigator?AeroElectric-List">http://www.matronics --> https://matronics.com/contribution

- 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

_________________
Charlie

Display posts from previous:

	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