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1. 11:26 AM - Re: Voltage Regulator Questions (Robert L. Nuckolls, III)
2. 11:30 AM - Re: Re: Voltage Regulator Questions (Robert L. Nuckolls, III)
3. 02:56 PM - Re: Voltage Regulator Questions (farmrjohn)
Message 1
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| Subject: | Re: Voltage Regulator Questions |
At 04:48 PM 3/22/2022, you wrote:
>
>I have a Zeftronics R15V00-A regulator controlling a Hartzel/Plane
>Power 60 amp alternator and am trying to troubleshoot the alternator
>dropping off line.
Does it ever produce significant output
over a period of time?
Are you replacing a regulator that once worked?
> The regulator is connected to the alternator and bus per their
> wiring diagram with no indicator lamp connected to pin I.
There are a variety of almost-cloned, 'ford'
regulators out there. The original designs
in both electro-mechanical and solid-state
depended on continuity to the bus through
the warning light to bring the alternator on
line. I don't think that is true of any
modern, solid state incarnations of the 'ford'
electro-mechanical alternator regulators.
> The connections utilized the existing wiring, dating to 1994 at
> the latest, and 1966 at the earliest (externally braid shielded
> wire with faston connectors for the regulator pins) and feel a bit
> loose on the regulator pins. The S and A wires also attach to
> noise suppressors. I'm considering replacing the wiring to have
> new faston sockets.
New PIDG fast-ons are never a bad idea especially
on older airplanes.
>1. Can the regulator be wired as in the Z-11 diagram with pins S
>and A jumped together from the alternator switch?
Yes. In fact recommended.
>2. Does the regulator need the external indicator lamp connected to
>function properly?
Probably not . . .
>3. Do the wires to the regulator pins need to be shielded/grounded
>as they are now? If so, will the current jacketed/shielded wire be adequate?
Shielding is of no demonstrable value anywhere
in any alternator or generator installation.
>4. Are the noise suppressors necessary or can they be
>eliminated? There is currently no alternator "whine" in the radio.
Noise filters same, same. Noise suppressors are
an artifact from systems that included electro-mechanical
regulators, generators and ADF receivers. All
that stuff is gone. Filters need to go with
them.
It would be useful to monitor the FIELD voltage while
observing system functionality. This will clue you
in as to whether its the regulator or the alternator
that is misbehaving.
I've been a bit out-of-pocket on the List for the
past several weeks. Got into an argument with a
band saw and you know who won. Had a bit of hand
surgery that is healing nicely and I'm able to
shed the cast and use the keyboard again.
Just finished refurbishing a vintage Milwaukee-Delta
bandsaw and I guess it needed 'blessing' with
a bit of blood sacrifice. Really nice saw!
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 2
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| Subject: | Re: Voltage Regulator Questions |
At 01:18 PM 3/23/2022, you wrote:
>
>Oops, I was wrong. Looking at the schematic in post #1 above, it is
>not clear how the relay is wired. So I take back what I said about
>terminals "A" and "S" already being connected together when the
>alternator switch is turned on.
>
>--------
>Joe Gores
>
The original functions for "I", "A" and "S" terminals
on the 'ford' regulators are lost to antiquity.
For powering up a two terminal ("F" and "B")
alternator, you and almost always wire per
the Z-figures as long as your o.v. protection
system is independent of the regulator.
What kind of ov management device is included
on this airplane?
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 3
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| Subject: | Re: Voltage Regulator Questions |
[quote="nuckolls.bob(at)aeroelect"]At 04:48 PM 3/22/2022, you wrote:
>
>
> Does it ever produce significant output
> over a period of time?
>
> Immediately after engine start and turning alternator on will have 16 amp charge,
quickly dropping back to 0 to .1 after the batter is recharged. When the
alternator drops off after about 30 to 40 minutes of operation the discharge load
is -10 amps until I load shed.
>
> Are you replacing a regulator that once worked?
>
> No. The alternator is new, replaced 20 hours ago.
>
>
> There are a variety of almost-cloned, 'ford'
> regulators out there. The original designs
> in both electro-mechanical and solid-state
> depended on continuity to the bus through
> the warning light to bring the alternator on
> line. I don't think that is true of any
> modern, solid state incarnations of the 'ford'
> electro-mechanical alternator regulators.
>
> From Zeftroniss linstructions the indicator light is illuminated by powere from
the A pin if the S pin is unpowered via the over voltage protection. Once pin
S is powered the power path to pin I is not available. I can attach that information
when I get back home to my computer.
>
>
> > I'm considering replacing the wiring to have new faston sockets.
>
> New PIDG fast-ons are never a bad idea especially
> on older airplanes.
>
>
> > 1. Can the regulator be wired as in the Z-11 diagram with pins S and A jumped
together from the alternator switch?
>
> Yes. In fact recommended.
>
> Confirming it should be 20 ga per the Z-11 diagram?
>
>
>
>
> It would be useful to monitor the FIELD voltage while
> observing system functionality. This will clue you
> in as to whether its the regulator or the alternator
> that is misbehaving.
>
> Would that be the monitor diagram (Z-23)?
>
> I've been a bit out-of-pocket on the List for the
> past several weeks. Got into an argument with a
> band saw and you know who won. Had a bit of hand
> surgery that is healing nicely and I'm able to
> shed the cast and use the keyboard again.
>
> Just finished refurbishing a vintage Milwaukee-Delta
> bandsaw and I guess it needed 'blessing' with
> a bit of blood sacrifice. Really nice saw!
>
> Sorry to hear that, the machinery and mechanizing gods do like their blood sacrifices.
Heal well.
>
> John
>
>
> "
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