Hi Martin,
I suspect that the c/b should be 25A not 5A, I would
suggest that you take a look at the wiring diagram in the
manual page 25-11.
Reagrds
Simon
----- Original Message Follows -----
From: MJKTuck@cs.com
Subject: Europa-List: Voltage Regulator Problem?
Date: Sun, 12 Jun 2005 17:49:19 EDT
>
>
> Hi Folks,
>
> The last two or three times I have gone flying I have
> experienced a problem with the 5A ALT FIELD circuit
> breaker popping. The solution at first seemed easy just
> push it back in and all is well. It occurs usually at
> start up soon after I turn on the radio panel circuit.
>
> A couple of flights ago it popped a couple more times in
> the cruise and I reset it with no further problems.
>
> Yesterday however it popped quite a number of times (5 or
> 6) and only settled down after I had turned the radio
> master off and back on again. I don't see how turning the
> radios off would affect the ALT circuit breaker except I
> suppose they use the most load.
>
> Looking at the circuit the breaker is located between
> output C on the voltage regulator and the main power bus
> (and thus the battery positive). Very simple.
>
> The only thing I can think of is that the voltage
> regulator is spiking at more than 5 amps until it 'warms
> up' or reaches some kind of battery charged point after
> the battery has been used after start (although the engine
> typically fires after just a few turns).
>
> Any ideas and/or solutions as to what the problem might be
> would be appreciated. I would like to trouble shoot
> before replacing the regulator but do not want to remove
> the panel unless I really have to.
>
> P.S I usually turn on (both) the split master/alt switch -
> perhaps I should only turn on the alternator after engine
> start? I have close to 200 hours flying time on the
> aircraft so again this is a doubtful cause.
>
> Regards,
> Martin Tuck
> Europa N152MT
> Wichita, Kansas
>
>
> ====
>
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>
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