Mike,
For 4 turn coils (total
cross section 1x1”) I get the following for
inductances:
Inboard (single 60deg
coil) 52.2 microhenries
Inboard (pair of 30 deg
coils) 55.8 microhenries
Outboard (single 60deg
coil) 63.8
microhenries
Outboard (pair of 30
deg coils) 66.5
microhenries
This assumes the pairs
are wired as one coil.
Art
From: Michael
R. Kalish
Sent: Thursday,
October 18, 2007 3:07 PM
To:
Hutch Neilson
Cc: Arthur W.
Brooks
Subject: Trim Coil
Resistance
Hutch
Sorry … must have been
confused about which coil.
I’ve now worked out the
resistances for the Trim Coils (attached xls spread sheet). I don’t know
how to calculate the inductance however…. maybe Art has
that?
Mike
Michael Kalish
Phone: (609)
243-2277
Fax: (609) 243-3248
You can visit the home page
of the
http://www.pppl.gov
From: Hutch
Neilson
Sent: Thursday,
October 18, 2007 12:05 PM
To:
Michael R. Kalish
Subject: Re:
TF Coil Resistance and Inductance
Somebody may have asked for this but I was looking for
TRIM coil electrical parameters. Instead, I will go have a chat with Raki
and then have him come see you. I want to be sure that we are headed for
trim coil power supply requirements that will be affordable. Sorry if I
caused any confusion or extra work.
Hutch
On Oct 18, 2007, at 10:48 AM, Michael R. Kalish
wrote:
Hutch,
I believe it was you who asked for
the TF Coil parameters yesterday?
DC Resistance = 4760 micro Ohms +/-
24 micro Ohms (calculated and measured) at 20C
DC Resistance = 717 micro Ohms
(calculated) at -193 C
Inductance = 780 mH to
820mH based on first
two coils (measured) at 20C and 1kHz
Inductance = 880 mH to
910mH based on first
two coils (measured) at 20C and 100kHz
Mike
Michael
Kalish
Phone: (609)
243-2277
Fax: (609) 243-3248
You can visit the home page
of the
http://www.pppl.gov
<TF Coil
Conductivity.pdf>