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Author Topic: Generator by Gerard Morin  (Read 148670 times)

memoryman

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Re: Generator by Gerard Morin
« Reply #45 on: October 02, 2015, 05:21:30 PM »
setting.
Some meters will read D.C. current on an A.C. setting.

I doubt that Gerard has checked that.
He spouts absolute nonsense about almost anything.

synchro1

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Re: Generator by Gerard Morin
« Reply #46 on: October 02, 2015, 05:43:56 PM »
setting.
I doubt that Gerard has checked that.
He spouts absolute nonsense about almost anything.



"The Hall effect type (Clamp Meter) is more sensitive and is able to measure both DC and AC current".

Hoppy

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Re: Generator by Gerard Morin
« Reply #47 on: October 02, 2015, 06:16:30 PM »


"The Hall effect type (Clamp Meter) is more sensitive and is able to measure both DC and AC current".

Yes, but his meter is clearly displaying an AC switch setting. My clamp meter measures both AC and DC current but makes it clear which current it is set to.

synchro1

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Re: Generator by Gerard Morin
« Reply #48 on: October 02, 2015, 07:35:51 PM »
Yes, but his meter is clearly displaying an AC switch setting. My clamp meter measures both AC and DC current but makes it clear which current it is set to.

In general hall elements are used as a sensor to detect DC current because it is not possible to employ an electromagnetic induction method as used for dedicated AC clamp meters. As shown in a figure at below, a hall element is placed across a gap created by cutting off part of the transformer jaws. When there occurs a flow of magnetic flux proportional to both AC and DC primary currents in the transformer jaws this hall element detects the magnetic flux and takes it out as an output voltage.
 Hall element:This is a semiconductor to generate a voltage proportional to the product of bias current and magnetic field on the output terminal when bias current is applied to the input terminal.

TinselKoala

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Re: Generator by Gerard Morin
« Reply #49 on: October 02, 2015, 09:24:08 PM »
Nice copy-paste, Synchro. Now let's see a link to a clamp meter that measures a DC current accurately when it is _set to the AC current setting_.

TinselKoala

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Re: Generator by Gerard Morin
« Reply #50 on: October 02, 2015, 09:26:09 PM »
Some meters will read D.C. current on an A.C. setting.

Give a link to one, and show that it is accurate.

synchro1

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Re: Generator by Gerard Morin
« Reply #51 on: October 02, 2015, 10:31:22 PM »
Try it and see for us . The archival data says it's possible; If it's not just flipped over to one side, there's a chance it's reading the D.C. current on A.C.. Only the Hall effect sensor will act this way. Some one with a "Hall Effect" clamp meter can get some concrete results fast.

citfta

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Re: Generator by Gerard Morin
« Reply #52 on: October 02, 2015, 11:17:29 PM »
Unless someone has the exact same meter Gerard is using we still won't know anything.  One meter may be accurate reading DC when set on AC and another may not.  And even if we find that a meter like his is accurate that still does not address the problem that nothing he says makes any sense to anyone that has actually worked in the field.

synchro1

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Re: Generator by Gerard Morin
« Reply #53 on: October 03, 2015, 12:37:12 AM »
Unless someone has the exact same meter Gerard is using we still won't know anything.  One meter may be accurate reading DC when set on AC and another may not.  And even if we find that a meter like his is accurate that still does not address the problem that nothing he says makes any sense to anyone that has actually worked in the field.

@citfta,

Nice to see you over here. Most meters would just read zero on the wrong scale. The fact that he's reading something indicates there my be a measurement. He should have placed it on the D.C. scale in the first place.
« Last Edit: October 03, 2015, 04:49:09 AM by synchro1 »

tinman

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Re: Generator by Gerard Morin
« Reply #54 on: October 03, 2015, 02:11:23 AM »
Here is the meter Jerard is using-the modle is quite easy to see when the video is viewed in full screen.
So he is trying to measure a DC current using a meter that reads only AC current ;)

http://www.valuetesters.com/ideal-industries-61-766-clamp-multimeter-ac-true-rms.html

TinselKoala

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Re: Generator by Gerard Morin
« Reply #55 on: October 03, 2015, 05:07:24 AM »
Here is the meter Jerard is using-the modle is quite easy to see when the video is viewed in full screen.
So he is trying to measure a DC current using a meter that reads only AC current ;)

http://www.valuetesters.com/ideal-industries-61-766-clamp-multimeter-ac-true-rms.html

It would be sad, if it wasn't so damn hilarious. Or maybe the other way around.


citfta

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Re: Generator by Gerard Morin
« Reply #56 on: October 03, 2015, 12:28:09 PM »
Thanks for the info about the meter.  That explains the weird readings around the inverter.  If I remember he showed less than an amp going from the battery to the inverter.  But, he showed the inverter putting out over an amp going to the motor drive.  He is using an off the shelf inverter so the current should have been at least 10 times higher coming from the battery as going to the motor drive.

tinman

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Re: Generator by Gerard Morin
« Reply #57 on: October 03, 2015, 04:41:15 PM »
Thanks for the info about the meter.  That explains the weird readings around the inverter.  If I remember he showed less than an amp going from the battery to the inverter.  But, he showed the inverter putting out over an amp going to the motor drive.  He is using an off the shelf inverter so the current should have been at least 10 times higher coming from the battery as going to the motor drive.

Those stator motors he is using are/or the same as the fisher and paykel smart drive motors-i have many of them,as can be seen on a few of my youtube video's. I made a pulse motor out of one one day,just to see what would happen. I could run it at 84RPM on a 6 volt battery at around 500mA. Even at that low power,it had a lot of torque. If i use the 80 series version stator,i can light a 480watt LED light bar simply by cranking it by hand,so that little 5-10 watt LED he was driving would be no problem at all. The 80 and 100 series versions of those motors are capable.

Here is a video showing the different series motors.

https://www.youtube.com/watch?v=KLzHr0Qntgo

synchro1

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Re: Generator by Gerard Morin
« Reply #58 on: October 04, 2015, 01:38:18 AM »
Thanks for the info about the meter.  That explains the weird readings around the inverter.  If I remember he showed less than an amp going from the battery to the inverter.  But, he showed the inverter putting out over an amp going to the motor drive.  He is using an off the shelf inverter so the current should have been at least 10 times higher coming from the battery as going to the motor drive.

Ouch! 2 amps in and 10 amps out over 11 hours equals 88 amp hours from a 12 volt deep cell battery. Enough to drain it completely and leave it as dead as a door nail. No measurement offered by Morin on the final battery voltage. A lead acid battery battery can go nearly completely dead and still show a respectable voltage reading on a meter. Ten times the power is easy to misread on a display especially if your meter was manufactured in Never-Never Land like Morin's. 

Hoppy

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Re: Generator by Gerard Morin
« Reply #59 on: October 04, 2015, 04:56:55 PM »

Ten times the power is easy to misread on a display especially if your meter was manufactured in Never-Never Land like Morin's.

That meter does not measure power directly either.