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gmcjetpilot(at)yahoo.com
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brian
Joined: 02 Jan 2006
Posts: 643
Location: Sacramento, California, USA
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 Posted: Tue Apr 25, 2006 6:36 am Post subject: Plane power Alternator pictures |
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gmcjetpilot(at)yahoo.com wrote:
Interesting. The site is a bit weak on details though. I presume that
the experimental unit is internally regulated. I don't see how they
provide a means of removing field excitation to disable the alternator
in the case of a problem but that is probably just a matter of
insufficient information on the web site.
As for the versions for certified aircraft, there isn't a lot
information there either. I guess they are just bolt-on replacement for
existing alternators. Their point about superior output is a non-issue
for me. I have never seen a load on any of my alternators that exceeded
about 50% of rated capacity. Heck, on my Aztec I only hit 50% if one
alternator is off line. The rest of the time I can barely see the 60A
loadmeters (one per alternator) move.
--
Brian Lloyd 361 Catterline Way
brian-yak at lloyd dot com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
- Antoine de Saint-Exupery
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_________________
Brian Lloyd
brian-yak at lloyd dot com
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
- Antoine de Saint-Exupery |
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Jekyll
Joined: 22 Feb 2006
Posts: 44
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| Posted: Wed Apr 26, 2006 7:58 am Post subject: Re: Plane power Alternator pictures |
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I emailed several questions to Plane Power and was suprised to recieve a call from Steve the next morning. He cared enough to spend 30 minutes talking with an electrically challenged builder discussing the salient charachteristics of his alternators. He seemed very willing to go into any level of detail I cared to pursue. I informed him in my initial email I would buy through Vans at a substantial discount if I decided on his product so he knew his profit from the call would not be great.
He is confident in the internal VR set up in the experimental versions and spent quite a bit of time explaining it to me. He also touts the dual cooling fans and higher output at lower RPM. No load-dump issues.
As far as self excitation, well, I'm not savy enough to discuss that though I've heard it can lead to difficulty seeing at night.
I suggest one of you more knowledgeable on these issues give him a call as I've reached my level of alternator competence. Your knowledge would lead to a better investigation of the attributes. My layman-level research however, has convinced me that this is a great product at a fair price.
In summation, I was impressed with his responsivness and candor and have decided to alter my plans from a B&C alternator and VR (total of $637) to the PP alternator for $375. This is a big savings!
Ultimately, PP's greatest contribution may be to offer a high quality, cost point comparison that will bring down B&C's prices. Isn't competition great?
Jekyll
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gmcjetpilot(at)yahoo.com
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| Posted: Wed Apr 26, 2006 2:28 pm Post subject: Plane power Alternator pictures |
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| Quote: | posted by: Brian Lloyd <brian-yak(at)lloyd.com>
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>Interesting. The site is a bit weak on details though. I presume that
| Quote: | the experimental unit is internally regulated. I don't see how they
provide a means of removing field excitation to disable the alternator
in the case of a problem but that is probably just a matter of
insufficient information on the web site.
|
I suspect that little module on the back sense OV with a solid state
chip and somehow opens the FIELD or all the power from the I-VR.
They are indeed internally regulated.
The little module may have a solid state relay or the I-V regulator is
modified with a relay, which is activated by that OV sense module,
to open the field.
However I have no details either. I have a call into Plane Power
and I'll see what I can learn.
| Quote: | As for the versions for certified aircraft, there isn't a lot
information there either. I guess they are just bolt-on replacement for
existing alternators. Their point about superior output is a non-issue
for me. I have never seen a load on any of my alternators that exceeded
about 50% of rated capacity. Heck, on my Aztec I only hit 50% if one
alternator is off line. The rest of the time I can barely see the 60A
loadmeters (one per alternator) move.
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The certified ones I do know are externally regulated and are bolt in.
I think there load diagram really is just to show they are stronger than
the stock one. Like you side it probably does not make a differnce.
As far as load I flew freight in Navajos and other twins, with the
hot windshield and props. I did see a little more load than you see.
With hot stuff and lights the load was high, but don't recall the exact #.
I also owned a 1958 Apache with generators (I think 23-30 amps)
and they where plenty. It all depends on your needs. In a single
engine plane w/ known ice (hot prop/windshield like a C210), with
lots of electronics, the extra power may be of use. However I don't
think 70 amps is enough. I suspect he could use the large frame
ND's to make a 130 amp unit for the high demand applications.
George
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Jekyll
Joined: 22 Feb 2006
Posts: 44
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| Posted: Thu Apr 27, 2006 7:49 am Post subject: Re: Plane power Alternator pictures |
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[quote="gmcjetpilot(at)yahoo.com"
I suspect that little module on the back sense OV with a solid state
chip and somehow opens the FIELD or all the power from the I-VR.
They are indeed internally regulated.
The little module may have a solid state relay or the I-V regulator is
modified with a relay, which is activated by that OV sense module,
to open the field. [/quote]
I forgot to mention that Steve (PP) stated his internal VR is solid state and includes a crowbar.
Jekyll
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gmcjetpilot(at)yahoo.com
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| Posted: Fri Apr 28, 2006 10:40 am Post subject: Plane power Alternator pictures |
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| Quote: | From: "Jekyll" <rcitjh(at)aol.com>
I forgot to mention that Steve (PP) stated his internal VR is solid
state and includes a crowbar. Jekyll
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Thanks Jekyll, I just got off the phone and you are correct. They
sourced the power for the field brushes only thru the external
power lead, not the output. The OV module is a crow bar and
pops the 5 amp CB. He also said there is OV protection on the
chip but this is additional protection incase the chip shorts.
Sounds good to me. Light, simple and easy to install.
http://www.plane-power.com/images/AL12_EI60%20Installation.pdf
They also have custom fans (made from their tooling) that run CCW.
George
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N777TY
Joined: 09 Apr 2006
Posts: 69
Location: Charlotte, NC
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| Posted: Fri Apr 28, 2006 1:09 pm Post subject: Re: Plane power Alternator pictures |
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Can that 60 Amp breaker be replaced with ANL from B & C?
This looks like an attractive option to the B $$$ C setup..
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RV-7A
N777TY |
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gmcjetpilot(at)yahoo.com
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| Posted: Sat Apr 29, 2006 12:50 am Post subject: Plane power Alternator pictures |
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YES, but the 5 amp CB is a must. I agree it is an attractive option.
Not even Bob can argue with it? (kidding)
| Quote: | posted by: "N777TY" <microsmurfer(at)yahoo.com>
Can that 60 Amp breaker be replaced with ANL from B & C?
This looks like an attractive option to the B $$$ C setup..
RV-7A
N777TY (res)
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