[SEL] Fw: Resistance
Ed Stoller
edstoller at earthlink.net
Tue Mar 11 11:33:29 PDT 2014
----- Original Message -----
From: Herb Gundy
To: Ed Stoller
Sent: Tuesday, March 11, 2014 10:53 AM
Subject: Re: Resistance
And this;
http://www.ebay.com/itm/Antique-1-Cyl-Rotary-Oil-Field-Oilfield-Drill-Gas-Wankel-Engine-Hit-Miss-Era/400671747421?_trksid=p2047675.c100012.m1985&_trkparms=aid%3D444000%26algo%3DSOI.DEFAULT%26ao%3D1%26asc%3D20477%26meid%3D5411648568560837866%26pid%3D100012%26prg%3D9141%26rk%3D0%26rkt%3D10%26sd%3D400670207145
On Mar 10, 2014, at 9:41 PM, Ed Stoller <edstoller at earthlink.net> wrote:
Attached is what I was doing today. Be on the look out for old generators and hit miss engines .
Ed Stoller
New Fairfield, CT, USA
www.enginesandmagnets.com
----- Original Message -----
From: Herb Gundy
To: Ed Stoller
Sent: Monday, March 10, 2014 8:49 PM
Subject: Re: Resistance
Thanks for that explanation.
Your help has been greatly appreciated.
How may I repay you for your expertise?
Herb Gundy
On Mar 10, 2014, at 8:44 PM, Ed Stoller <edstoller at earthlink.net> wrote:
If the battery is over charged, it will be damaged. The regulator reduces the output as the limit , 14.7 Volts ,is approached. You could use a volt meter to monitor the battery voltage and a switch to disconnect the charging circuit when the Voltage gets above 14 Volts.
Output maybe 4 Amps, maybe 6. The Voltage rating is a break down voltage so you do not want any spikes exceeding it.
Ed Stoller
New Fairfield, CT, USA
www.enginesandmagnets.com
----- Original Message -----
From: Herb Gundy
To: Ed Stoller
Sent: Monday, March 10, 2014 8:23 PM
Subject: Re: Resistance
Hi Ed,
Well, "you da man". Told me exactly what I need to know. Thank you, thank you, thank you.
I have one more question, Under what conditions would AC (or DC for that matter) need to pass thru a regulator. What are the limits; generally speaking, for a given battery/bulb? I do know that bulbs will blow and batteries will overcharge.
Do you have a guess as to the output of this little system? I am assuming it’s not more than 200v/8 amp as per your rectifier recommendation.
"Having fun”
Herb G.
On Mar 10, 2014, at 9:50 AM, Ed Stoller <edstoller at earthlink.net> wrote:
Morning Herb,
There are two ways to use the AC to charge a battery; Half Wave rectifier and a Full wave rectifier. The second delivers twice the charge to the battery but the first is simpler.
Reference: http://www.radioshack.com/home/index.jsp ,
For a half wave rectifier, ground one end of the winding and connect the un-banded end of the diode to the other.
<1N5404.jpg>
For the full wave you need a bridge rectifier which has four diodes in it in a diamond arrangement. See ,NTE5300 - R-Bridge 200V 8 Amp Single Phase or http://www.radioshack.com/product/index.jsp?productId=12708890 .
<RS-Bridge.jpg>
Note that the AC connections are in the center. The - connection would go to the ground and the + off to the battery thru an ammeter, which should tell you how much charging current you have. They may have a bridge 50 Volts or over and 8 Amps or over at your local radio shack. If the meter is installed backwards, it will show a discharge instead of a charge.
Have Fun,
Ed Stoller
New Fairfield, CT, USA
www.enginesandmagnets.com
----- Original Message -----
From: Herb Gundy
To: Ed Stoller
Sent: Sunday, March 09, 2014 9:51 PM
Subject: Re: Resistance
Thank you Ed,
Yes, A and B describe the same wire.
This motor was not installed in a tractor since coming into my possession. There is no diode pack. I know that it is putting out AC current when I spin the engine with a drill but don’t know the correct way to proceed from here.
Can you tell, based on your experience, how many amp system this is? And, what a diode set up should look like for this application.
If you could tell me how to go about installing a diode so that this motor would charge a battery as well as power a headlight I would be so grateful.
hg
On Mar 9, 2014, at 9:33 PM, Ed Stoller <edstoller at earthlink.net> wrote:
<71-H70..jpg>
I am trying to make sure I know what wire goes where.
Looking at the picture a little closer, are A and B the same wire? and I understand D and E are the ignition.
Measure the resistance between B and C in both directions. It is probably Zero. This would be the AC output most likely to charge the battery. Was there a little box inside the blower housing? The voltage regulator is usually part of the tractor or machine wiring. Your measurements would indicate that it winding is good. I do not know what else to do here.
Ed Stoller
New Fairfield, CT, USA
www.enginesandmagnets.com
----- Original Message -----
From: Herb Gundy
To: Ed Stoller
Sent: Sunday, March 09, 2014 7:45 PM
Subject: Re: Resistance
Hi Ed,
In your picture, C and B are the wires I tested.
They go to the copper windings on the stator. Both infinite, in either direction. I did not test the ignition wire (D ) and kill wire (E) as I am sure that they are working OK. D passes out a nice blue spark when I spin the flywheel with a power drill and E stops the spark when I ground it to the block.
BTW I am sure there is no diode in the circuit. The wires on the stator were clipped right at the windings. I attached the brown and red leads you see in the picture.
If you need more info I’m at your service.
hg
On Mar 9, 2014, at 7:08 PM, Ed Stoller <edstoller at earthlink.net> wrote:
Looking at the picture I sent you, what wires are you tlaking about. All of them?
Ed Stoller
New Fairfield, CT, USA
www.enginesandmagnets.com
----- Original Message -----
From: Herb Gundy
To: Ed Stoller
Sent: Sunday, March 09, 2014 4:45 PM
Subject: Fwd: Resistance
Hi Ed,
Am back from trip. In case you did not hear, resistance was infinite both ends and both ways.
herb g.
Begin forwarded message:
From: "Ed Stoller" <edstoller at earthlink.net>
Subject: Re: Resistance
Date: March 7, 2014 at 8:38:59 AM EST
To: "Herb Gundy" <nhgccc1 at windstream.net>
No problem. When you measure the resistance, reverse you RED and Black meter leads incase there is a diode in the line.
Ed Stoller
New Fairfield, CT, USA
www.enginesandmagnets.com
----- Original Message ----- From: "Herb Gundy" <nhgccc1 at windstream.net>
To: "Ed Stoller" <edstoller at earthlink.net>
Sent: Thursday, March 06, 2014 9:24 PM
Subject: Resistance
Almost forgot;
Ed, I will be away for a couple of days. I will measure the resistance tomorrow if I have the chance. Otherwise will get back to you on Sunday/Monday if that’s OK.
Best,
hg
<W3MnewIgnition.pdf>
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