Re: [TCML] MOT ballasting options

["jhowson4@xxxxxxxxxxx" <jhowson4@xxxxxxxxxxx>]

It's important to remember that the inductance of the transformer itself plays a role here too. 
The spool may limit to 35A, but when I run with the pt under load, it draws 30. 
I'm just saying for sake of saying :)

John "Jay" Howson IV

Sent from a tiny phone with a tiny keyboard. 

----- Reply message -----
From: "Jim Lux" <jimlux@xxxxxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Subject: [TCML] MOT ballasting options
Date: Wed, Jan 2, 2013 10:53 pm


On 1/2/13 6:58 PM, Andy Cobaugh wrote:
> On 2013-01-02 at 17:17, Jim Lux ( jimlux@xxxxxxxxxxxxx ) said:
>>
>> the "500 ft spool of wire" as an inductor has some simplicity and
>> appeal.. I can't recall what it's inductance is, but it's on the list.
>> (copper being expensive these days, it's not as cheap as other means)
>
> I think the 500ft spools of #12 THHN stranded copper measure around 9mH.
> The mostly complete spool that I use with my potential transformers
> measures 8.5mH.
>

9mH = 3.4 ohms at 60 Hz, 2.8 @ 50

1 spool = 35 Amps at 120 V, 60 Hz



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