Today's Message Index:
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1. 12:14 AM - Re: Alternator Putting out MAX Current (=?iso-8859-1?Q?Lothar_M=E4tzler?=)
2. 03:19 AM - Re: Alternator Putting out MAX Current (ChangDriver)
3. 09:11 AM - Re: Re: Alternator Putting out MAX Current (Michael B. Cavanagh)
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| Subject: | Re: Alternator Putting out MAX Current |
I have an B&C alternator too in my Yak52 (excuse my austrian english). The
problem I see is: The load current of the alternator or generator depens
always from the currently use for the board net and the currently condition
of the batteries (two 12V in serie). By the way, I have the problem to need
every two years new batteries. Every time one off the twos is in high
(inside) resistenz condition. I think the problem is that at the beginning
the two new batteries are not 100% on the same load condition. Originally
there was only one battery. Consequentially during load in the plan, the
lower one is always let me say a halve volt below the nominal 28,8:2=13,9V
however the other 14,9V. Probaly the lower one with the time will get high
impedanz. This is because the Voltage controller does not now two batteries!
It only can regulate the nominal 28,8 V.
About your problem I mean the electronic voltage controller from the B&C
alternator has only one power(ampere) regtulator and that is the max
permitted power. This is an disadvantage compared with the original
Generator controlling.
Your problem is the current battery condition. If you check the current with
the same speed half hour later, you will see the current at sam conditions
is lower, because in the mean time.
Have a nice day
Lothar Matzler
-----Ursprngliche Nachricht-----
From: ChangDriver
Sent: Saturday, August 31, 2013 3:05 AM
Subject: Yak-List: Alternator Putting out MAX Current
I have a B&C alternator and voltage regulator on my CJ. Today when running
the engine at takeoff power, the alternator started putting out 35 amps (max
current). Bus voltage is regulated at 28.8 volts. I have never seen it put
out so much current. No lights on, etc. Just normal stuff. It typically
runs around 5 amps or so.
I have new batteries installed so that is not an issue. Bus voltage is 23.8
with engine not running.
Any ideas??
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=407798#407798
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| Subject: | Re: Alternator Putting out MAX Current |
Thanks for the reply. I have two brand new 12 v batteries in series to make the
24 v system. The current is RPM dependent. At idle there is no current. As
RPM increases, the current rises. Like at 1200 rpm 4 amps, 1500, 12 amps, 2000,
22 amps, at t/o power of 2400 rpm 35 amps.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=407808#407808
Message 3
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| Subject: | Re: Alternator Putting out MAX Current |
Voltage regulator is not working, check your connections, but your throttle is
your voltage regulator until it is fixed. Do not fly until you figure it out.
Does the B&C have a built in regulator, if so it may need to be replaced. Talk
to B&C and he will help you.
On Aug 31, 2013, at 5:16 AM, ChangDriver <capav8r@gmail.com> wrote:
>
> Thanks for the reply. I have two brand new 12 v batteries in series to make
the 24 v system. The current is RPM dependent. At idle there is no current.
As RPM increases, the current rises. Like at 1200 rpm 4 amps, 1500, 12 amps,
2000, 22 amps, at t/o power of 2400 rpm 35 amps.
>
>
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>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=407808#407808
>
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