John Cooper7755 Homer DrBeaumont, TX 77708
I'll take whatever you want to send. Nothing is too big too small too old.
Thanks!
Sent from my Samsung GALAXY S5™, a Cricket 4G LTE smartphone
-------- Original message --------
From: David Buchanan <thebuchanan@xxxxxxxx>
Date: 10/03/2015 09:37 (GMT-06:00)
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Subject: Re: [TCML] Power factor correction
Send me your mailing address. Sorry i lost track of our earlier comunication. Need any large diodes? Probably 500-1000 volts, 50-75 amps. I can spare 4, enough to make a full wave. I also have some scrap copper .050" thick x 3.5" wide x 6-18" random lengths. Got to down size to make room for other interests.
Sent via the Samsung Galaxy S® 5 ACTIVE™, an AT&T 4G LTE smartphone
-------- Original message --------
From: wt5y <wt5y@xxxxxxxxx>
Date: 10/03/2015 9:24 AM (GMT-06:00)
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Subject: Re: [TCML] Power factor correction
Yes for a ring launcher, only needed maybe 40ft. I'm using THHN 14awg now which is working good for me though too. So unless you just absolutely have no use for it I will try it out.
Sent from my Samsung GALAXY S5™, a Cricket 4G LTE smartphone
-------- Original message --------
From: David Buchanan <thebuchanan@xxxxxxxx>
Date: 10/03/2015 05:28 (GMT-06:00)
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Subject: Re: [TCML] Power factor correction
John Cooper,
Are you the one looking for some #14 or # 12 magnet wire?
Dave
> Date: Thu, 3 Sep 2015 13:20:38 -0500
> From: wt5y@xxxxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: Re: [TCML] Power factor correction
>
>
>
> So I put dmm in amp mode, switch probe leads to 10 amps plug, current Xformers over the cord or just the hot wire? And if it is running 25 amps I would see 2.5 amps on my meter?
>
>
> Sent from my Samsung GALAXY S5™, a Cricket 4G LTE smartphone
>
> -------- Original message --------
> From: David Speck <Dave@xxxxxxxxxxxxxxxx>
> Date: 09/02/2015 23:13 (GMT-06:00)
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Subject: Re: [TCML] Power factor correction
>
> John,
>
> Check out eBay for a current transformer. A 50:5 unit will multiply
> your DMM readings by factor of 10. They should be available for under
> $20 with some diligent looking.
>
> Something like the following would work. (no connection to seller.)
>
> http://www.ebay.com/itm/130895906892
>
> Just be careful to never put current through the transformer (CT)
> without having a load, like your DMM on its amperes setting, across the
> CT terminals. When unloaded, a CT tries to put out infinite voltage
> which may break down its internal windings.
>
> Then, you can investigate which arrangement of PFC caps works best for you.
>
> Dave
> -----------------------------
>
> I'm at the point I need to add some motor run caps, I'm thinking the
> same that go on your ac units in the 40-50uf 330-440v variety unless
> someone has a better suggestion. Looks like I will need around 150uf
> per transformer I have 3 12/60 NST. Biggest question is do I run all 9
> parallel or run about 3 strings of 3 to each? Would before or after the
> EMI filters make a difference. Blowing 20 amp fuses on variac, don't
> have a clamp meter and my dmm is only good to 10 amps inline. I was
> going to add some and then start measuring the current? John Cooper
>
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