[Tigers] Tigers Digest, Vol 9, Issue 128

[Carl Halgren]

As an old(er) guy, I remember the days of generators and their voltage regulators. As I recall, their output at an idle was not enough to recharge a battery, even at no-load. That is one reason why alternators replaced generators.

Carl in Kansas


    On Thursday, June 15, 2017 1:41 PM, "tigers-request at autox.team.net" <tigers-request at autox.team.net> wrote:
 

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Today's Topics:

  1. Stock 30A Generator (Stu)
  2. Re: Stock 30A Generator (Ron Fraser)


----------------------------------------------------------------------

Message: 1
Date: Wed, 14 Jun 2017 19:07:18 -0400
From: Stu <sabre2tgr at gmail.com>
To: Tiger Net <Tigers at autox.team.net>
Subject: [Tigers] Stock 30A Generator
Message-ID:
    <CA+DpG65dEGSkZt4hJWR4Kb029CbBLLozXV+Uy4kxF9yQSWWMcA at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

I got curious about some ammeter behavior I saw on a recent drive.  I did
some load testing with headlights on and off, headlights plus driving
lights on together, etc.  Which leads to...

Does anyone out there have any info on the expected current output of a
original type 30 amp generator versus engine rpm?  If it's in the shop
manual, I missed it.

I did see a "950 rpm generator cutout" spec mentioned.  Does this mean the
generator puts out nothing if the revs are below 950?

Inquiring minds want to know...

Stu
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Message: 2
Date: Wed, 14 Jun 2017 23:18:17 -0400
From: "Ron Fraser" <rfraser at bluefrog.com>
To: "'Stu'" <sabre2tgr at gmail.com>, <tigers at Autox.Team.Net>
Subject: Re: [Tigers] Stock 30A Generator
Message-ID: <000601d2e586$0b9ecaa0$22dc5fe0$@bluefrog.com>
Content-Type: text/plain; charset="utf-8"

Stu

 

                Cut-in (generator rpm) = 950      this is generator rpm not engine rpm.

 

I?m not the electrical guy so I believe the Shop Manual indicates that the generator and regulator system is load dependent not rpm.

The system will try to generate the amperage needed for a given load at every rpm.

 

I?m guessing you could increase the load until the engine stalls or something in the charging system burns out but let?s not go there.

 

Ron Fraser

 

From: Tigers [mailto:tigers-bounces at autox.team.net] On Behalf Of Stu via Tigers
Sent: Wednesday, June 14, 2017 7:07 PM
To: Tiger Net <Tigers at autox.team.net>
Subject: [Tigers] Stock 30A Generator

 

I got curious about some ammeter behavior I saw on a recent drive.  I did some load testing with headlights on and off, headlights plus driving lights on together, etc.  Which leads to...

 

Does anyone out there have any info on the expected current output of a original type 30 amp generator versus engine rpm?  If it's in the shop manual, I missed it.

 

I did see a "950 rpm generator cutout" spec mentioned.  Does this mean the generator puts out nothing if the revs are below 950? 

 

Inquiring minds want to know...

 

Stu

 

 

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End of Tigers Digest, Vol 9, Issue 128
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