fusible link questions

[Pat Ford]

On Thu, 4 Feb 1999 KD6JDJ at aol.com wrote:

> Date: Thu, 4 Feb 1999 10:48:48 EST
> From: KD6JDJ at aol.com
> To: diy_efi at efi332.eng.ohio-state.edu
> Subject: Re: fusible link questions
> 
snip
> 
>   What am I missing here???
>   I assume that the alternator + is connected to the battery + using 1 wire.
>   I assume that the wire is big enough to deliver ALL the current that the
> produce. The windings in the stator will establish that current limit.

the regulator controls current output, current input is limit only by the 
diodes (as someone else pointed out) Gm and Ford both use fusible links 
between batt and alt. they screw with safty to save pennies a car but 
still have an alt fuse or fuse link

> 
>   When would a "systems designer" connect vonerable(spelling?) sensitive
> electronic devices to any part of that ? 


every day? I think I know what you are trying to say pls correct me if I'm
wrong but are you saying that the battery is capable of acting as a 
buffer?

> 
>   I suggest that the biggest 'practical' wire be used to connect the
> alternator to the battery. If I am wrong with this 'advice' , please inform
> me. But please bring some facts , or at least some actual experiences.

77 mercury s/w 460 cid fuse link fatigued car wouldn't charge
76 honda upgraded to delco alt (100 amp for sterio sys) blew fuse no 
    charge
84 subaru 1.8l delco alt for sound system blew fuselink ...

it is a common to fuse this wire ( as a dealership mechanic alot
of charging problems were the fuse/fuselink popping and distroying the 
alternator)

> 
>    Jerry
> 

Pat Ford                           email: pford at qnx.com
QNX Software Systems, Ltd.           WWW: http://www.qnx.com
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