Today's Message Index:
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1. 11:06 AM - Re: Jabiru 3300 voltage regulator (James Kale)
2. 11:46 AM - Re: AeroElectric-List Digest: 24 Msgs - 08/23/18 (Bobby Paulk)
3. 07:14 PM - Re: Jabiru 3300 voltage regulator (user9253)
Message 1
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| Subject: | Re: Jabiru 3300 voltage regulator |
I am helping a friend install a Jabiru 2200 on an Excalibur light sport airp
lane that has a much simpler electrical system than you are building. I che
cked the Jabiru manual and found that they are using a permanent magnet alte
rnator with single phase AC output. The regulator that Jabiru supplied with
the engine is the type that puts a full load on the alternator at all times
then rectifies the output and regulates it down to 14 volts.
So the alternator is always producing full power and the rather robust regul
ator with the fins dissipates the power that the aircraft is not using as he
at. That is why it is so robust with fins on it. This is a much different s
ituation than an excited 3 phase AC alternator used with a voltage regulator
, either internal or external. The Jabiru I am installing has a 200 watt ou
tput which calculates to about 15 amps. It is a simple system that works gr
eat in airplanes with simple electrical systems which only needs power for a
radio, intercom, lights, etc.
It it is connected to more complex airplanes that have primary and secondary
busses, etc. You must end up experimenting to try to determine just how th
e regulator works, and how you can try to configure it to fit your more comp
lex requirements. In my opinion you are going out on a limb and risking a f
ailure caused by trying to use a simple system for a more complex requiremen
t. I have no idea if an external alternator could be fitted to the Jabiru e
ngine or not. My recommendation is to keep your electrical system very simp
le, or find a way to install a more powerful alternator with more convention
al alternator controls.
Sent from my iPhone
> On Aug 23, 2018, at 4:12 PM, Pat Little <roughleg@gmail.com> wrote:
>
> We have a Jabiru 3300 on a Zenith STOL CH750 and I'm trying to understand t
he inner workings of the voltage regulator that Jabiru supplies. I asked on t
he Jabiru forum but didn't get any useful insight. Does anyone on this list h
appen to know what goes on inside that unit?
>
> One of my puzzles is: on Jabiru's wiring diagram it show which pins on the
regulator's connector go where, and it lists, among others, these two:
> "RED to battery + via relay" - presumably this is the output to charge the
battery and power the plane's electrical system
> "YELLOW voltage control - J160C to main bus, other models to battery +" -
is this a feedback signal from the battery into the regulator's sense circu
it? if so, that might explain why not via relay. And why would it connect to
a different place in one model of airplane (the J160C is a Jabiru certified
plane) than in others?
>
> If anyone cares to look, the diagram I mention is on page 269 of the Jabir
u Aircraft Technical Manual JTM001-8
Message 2
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| Subject: | Re: AeroElectric-List Digest: 24 Msgs - 08/23/18 |
Guys
The Jabiru engine uses a
Kubota RP201-53710 regulator.
I got rid of the Dynamo and regulator and installed a 40 amp. alternator.
The Dynamo will not charge while taxiing and if you have any load at all your battery
could be down when you try to leave. The new Honda ignition coils are far
better than the originals and will help with starting also.
Bobby
Jabiru 3300
302 hours
Zenith 601
Message 3
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| Subject: | Re: Jabiru 3300 voltage regulator |
I would like to read about the Jabiru 2200 regulator. Do you have a link to the
literature? Thanks
> The regulator that Jabiru supplied with the engine is the type that puts a full
load on the alternator at all times
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482690#482690
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