RE: Balancing chokes

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Victor Yoo" <vlysvc@xxxxxxxxxx>

I Second your 2 cents!

That is exactly correct! It is to block the circulating currents. Otherwise
the variacs would have continuous current being gobbled up between
themselves and not the Load due to the imbalance of output voltage of each
variac! If everything was perfect ha ha ha the wiper position and output of
each variac would be exactly the same not requiring the chokes. But... so
much for that!

Victor.



-----Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx]
Sent: Wednesday, November 29, 2006 2:02 PM
To: tesla@xxxxxxxxxx
Subject: Re: Balancing chokes

Original poster: Finn Hammer <f-h@xxxx>

Guru wannabee here :-)

The way I see it, the function of these chokes is not to equalize the
current trough the variacs.
The fnction is to block circulating current, due to difference in
output voltage from the variacs.

Just my 2 cents.

Chers, Finn Hammer


snip
>So, my question to the magnetics gurus is: how can (what appear to
>be) simple inductors in series with each variac output enable
>current equalization? Is there some trick here with core saturation
>("swinging chokes"), or is some other mechanism at work?
>Regards,
>Scott Hanson