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Re: [TR] alternator problem 74 TR6

To: technical-iwnet@onwight.net, triumphs@autox.team.net
Subject: Re: [TR] alternator problem 74 TR6
From: Dave1massey@cs.com
Date: Mon, 16 Oct 2006 08:26:34 EDT
In a message dated 10/15/2006 5:34:20 PM Central Standard Time, 
technical-iwnet@onwight.net writes: 
> Supposed to be very bad for an alternator to run without a battery, it 
> senses a black hole to try to charge or something like that.
> 
The battery acts like a big capacitor.  It will stabilize the voltage in the 
system which is especially critical when loads are switching on and off.  The 
voltage spikes can cause collateral damage.  But running an alternator not 
connected to anything won't harm the alternator.  Perhaps if run for a long 
enough period the rotor could overheat if driven to max excitation (17 volts) 
but a 
quick check should cause no worries.

Dave


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