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nuckolls.bob(at)aeroelect
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 Posted: Thu Aug 13, 2020 5:28 am Post subject: Valid test for voltage regulator |
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At 04:31 AM 8/13/2020, you wrote:
| Quote: | --> AeroElectric-List message posted by: "Devid47" <lynchris299(at)gmail.com>
A voltage regulator is a device that takes in an input voltage and regulates it down to the voltage that it is rated for.
Being that a voltage regulator passes out a regulated output voltage, the only test we must do to check a voltage regulator is a voltage test. |
The 'voltage regulator' under discussion is
a rectifier/regulator assembly used in
conjunction with a permanent magnet
alternator. Exemplar schematic attached.
Bob . . .
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cluros(at)gmail.com
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| Posted: Thu Aug 13, 2020 5:44 am Post subject: Valid test for voltage regulator |
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Bob you've been had by a spammer. Ignore.
On Thu, Aug 13, 2020, 07:36 Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
| Quote: | At 04:31 AM 8/13/2020, you wrote:
| Quote: | --> AeroElectric-List message posted by: "Devid47" <lynchris299(at)gmail.com (lynchris299(at)gmail.com)>
A voltage regulator is a device that takes in an input voltage and regulates it down to the voltage that it is rated for.
Being that a voltage regulator passes out a regulated output voltage, the only test we must do to check a voltage regulator is a voltage test. |
The 'voltage regulator' under discussion is
a rectifier/regulator assembly used in
conjunction with a permanent magnet
alternator. Exemplar schematic attached.
Bob . . .
|
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ceengland7(at)gmail.com
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| Posted: Thu Aug 13, 2020 5:46 am Post subject: Valid test for voltage regulator |
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Hi Bob,
I'm pretty sure that guy is a spammer. I started to respond, then checked my history & found only that one post from him, which has a link to who knows what.
Charlie
On Thu, Aug 13, 2020 at 8:36 AM Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
| Quote: | At 04:31 AM 8/13/2020, you wrote:
| Quote: | --> AeroElectric-List message posted by: "Devid47" <lynchris299(at)gmail.com (lynchris299(at)gmail.com)>
A voltage regulator is a device that takes in an input voltage and regulates it down to the voltage that it is rated for.
Being that a voltage regulator passes out a regulated output voltage, the only test we must do to check a voltage regulator is a voltage test. |
The 'voltage regulator' under discussion is
a rectifier/regulator assembly used in
conjunction with a permanent magnet
alternator. Exemplar schematic attached.
Bob . . .
|
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echristley(at)att.net
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| Posted: Thu Aug 13, 2020 6:23 am Post subject: Valid test for voltage regulator |
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The email is probably spam, but I still found the diagram useful.
I got the test rig set up last night and ran it with no more load than the meter on it. My lathe has a VFD, so I can read the RPM from a digital readout. What I got was:
457rpm -> 14.6V
623rpm -> 14.64V
897rpm -> 15.09V
991rpm -> 15.7V
I'll hook a battery or a couple lights to it later today to see if the regulator needs a significant current flowing to regulate properly, but it doesn't look to me like this regulator is regulating very well.
On Thursday, August 13, 2020, 9:47:13 AM EDT, Charlie England <ceengland7(at)gmail.com> wrote:
Hi Bob,
I'm pretty sure that guy is a spammer. I started to respond, then checked my history & found only that one post from him, which has a link to who knows what.
Charlie
On Thu, Aug 13, 2020 at 8:36 AM Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
| Quote: | At 04:31 AM 8/13/2020, you wrote: | Quote: | | --> AeroElectric-List message posted by: "Devid47" <lynchris299(at)gmail.com (lynchris299(at)gmail.com)> A voltage regulator is a device that takes in an input voltage and regulates it down to the voltage that it is rated for. Being that a voltage regulator passes out a regulated output voltage, the only test we must do to check a voltage regulator is a voltage test. |
The 'voltage regulator' under discussion is a rectifier/regulator assembly used in conjunction with a permanent magnet alternator. Exemplar schematic attached.
Bob . . .
|
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user9253
Joined: 28 Mar 2008
Posts: 1927
Location: Riley TWP Michigan
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| Posted: Thu Aug 13, 2020 9:18 am Post subject: Re: Valid test for voltage regulator |
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Yes, Devid47 is a spammer.
The link at the bottom of his post indicates that he is from Sri Lanka.
His post was plagiarized from this website:
http://www.learningaboutelectronics.com/Articles/How-to-test-a-voltage-regulator
You can go there to read the whole article about testing the LM7805 if interested.
Matt has deleted the spammer and his post.
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_________________
Joe Gores
Last edited by user9253 on Thu Aug 13, 2020 10:16 am; edited 1 time in total |
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nuckolls.bob(at)aeroelect
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| Posted: Thu Aug 13, 2020 9:42 am Post subject: Valid test for voltage regulator |
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At 09:20 AM 8/13/2020, you wrote:
| Quote: | The email is probably spam, but I still found the diagram useful.
I got the test rig set up last night and ran it with no more load than the meter on it. My lathe has a VFD, so I can read the RPM from a digital readout. What I got was:
457rpm -> 14.6V
623rpm -> 14.64V
897rpm -> 15.09V
991rpm -> 15.7V
I'll hook a battery or a couple lights to it later today to see if the regulator needs a significant current flowing to regulate properly, but it doesn't look to me like this regulator is regulating very well. |
Contemporary PM R/R needs a load to be optimally accurate/stable.
How do the rpms in your test data relate to engine rpms in
operation?
It will settle down with a load.
Bob . . .
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
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echristley(at)att.net
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| Posted: Thu Aug 13, 2020 10:48 am Post subject: Valid test for voltage regulator |
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The engine idles around 650. Max RPM is 3,000.
On Thursday, August 13, 2020, 1:43:26 PM EDT, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com> wrote:
At 09:20 AM 8/13/2020, you wrote:
| Quote: | The email is probably spam, but I still found the diagram useful.
I got the test rig set up last night and ran it with no more load than the meter on it. My lathe has a VFD, so I can read the RPM from a digital readout. What I got was:
457rpm -> 14.6V
623rpm -> 14.64V
897rpm -> 15.09V
991rpm -> 15.7V
I'll hook a battery or a couple lights to it later today to see if the regulator needs a significant current flowing to regulate properly, but it doesn't look to me like this regulator is regulating very well. |
Contemporary PM R/R needs a load to be optimally accurate/stable.
How do the rpms in your test data relate to engine rpms in
operation?
It will settle down with a load.
Bob . . .
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
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ceengland7(at)gmail.com
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| Posted: Thu Aug 13, 2020 11:05 am Post subject: Valid test for voltage regulator |
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Is the alternator concentric on the crank (VW style), or belt driven? If belt, what's the *alternator* rpm range?
On Thu, Aug 13, 2020 at 1:55 PM Ernest Christley <echristley(at)att.net (echristley(at)att.net)> wrote:
| Quote: |
The engine idles around 650. Max RPM is 3,000.
On Thursday, August 13, 2020, 1:43:26 PM EDT, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
At 09:20 AM 8/13/2020, you wrote:
| Quote: | The email is probably spam, but I still found the diagram useful.
I got the test rig set up last night and ran it with no more load than the meter on it. My lathe has a VFD, so I can read the RPM from a digital readout. What I got was:
457rpm -> 14.6V
623rpm -> 14.64V
897rpm -> 15.09V
991rpm -> 15.7V
I'll hook a battery or a couple lights to it later today to see if the regulator needs a significant current flowing to regulate properly, but it doesn't look to me like this regulator is regulating very well. |
Contemporary PM R/R needs a load to be optimally accurate/stable.
How do the rpms in your test data relate to engine rpms in
operation?
It will settle down with a load.
Bob . . .
|
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
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echristley(at)att.net
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| Posted: Thu Aug 13, 2020 11:21 am Post subject: Valid test for voltage regulator |
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It's concentric. Bolts up in place of the harmonic dampener on a Corvair.
On Thursday, August 13, 2020, 3:05:31 PM EDT, Charlie England <ceengland7(at)gmail.com> wrote:
Is the alternator concentric on the crank (VW style), or belt driven? If belt, what's the *alternator* rpm range?
On Thu, Aug 13, 2020 at 1:55 PM Ernest Christley <echristley(at)att.net (echristley(at)att.net)> wrote:
| Quote: |
The engine idles around 650. Max RPM is 3,000.
On Thursday, August 13, 2020, 1:43:26 PM EDT, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
At 09:20 AM 8/13/2020, you wrote: | Quote: | | The email is probably spam, but I still found the diagram useful. I got the test rig set up last night and ran it with no more load than the meter on it. My lathe has a VFD, so I can read the RPM from a digital readout. What I got was: 457rpm -> 14.6V 623rpm -> 14.64V 897rpm -> 15.09V 991rpm -> 15.7V I'll hook a battery or a couple lights to it later today to see if the regulator needs a significant current flowing to regulate properly, but it doesn't look to me like this regulator is regulating very well. |
Contemporary PM R/R needs a load to be optimally accurate/stable. How do the rpms in your test data relate to engine rpms in operation? It will settle down with a load.
Bob . . .
|
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
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