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MARK & WEDELL | Oldenvej 5 | 3490 Kvistgaard | Denmark | Phone: +45 49139822 |
MARK & WEDELL
CURRENT LEADS FOR SUPERCONDUCTING MAGNETS
MARK & WEDELL | Oldenvej 5 | 3490 Kvistgaard | Denmark | Phone: +45 49139822 | E-mail: m-w@m
CURRENT LEADS FOR SUPERCONDUCTING MAGNETS
� Facilities for helium leak measurement and pressure test
� Facilities for high voltage and isolation resistance measurement
� Full featured computer code for static and dynamic
� In house facilities for design, drawing and manufacturing
[email protected] | Web: www.m-w.dk
FOR SUPERCONDUCTING MAGNETS
Facilities for helium leak
measurement and pressure test.
Facilities for high voltage and
isolation resistance measurement.
Full featured computer code for
static and dynamic analysis.
In house facilities for design,
drawing and manufacturing.
MARK & WEDELL | Oldenvej 5 | 3490 Kvistgaard | Denmark | Phone: +45 49139822 | E-mail: [email protected] | Web: www.m-w.dk
MARK & WEDELL
INTRODUCTION
We have in collaboration with our customers designed and built
in excess of 80 vapour cooled current leads ranging from 600A
to 17kA and test voltage up to 5kV. Main weight is on resistive
current leads, but we have also designed and built current
leads utilising high temperature superconducting tapes. We
can design current leads to a wide range of specifications and
to suit existing equipment.
600A CURRENT LEADS
These leads were designed and built to meet CERN design-
specification. The integrated auxiliary heat exchanger
practically eliminates condensation on the helium return line
and surroundings. The illustrated leads are for 600A, insertion
length 1.4m, design pressure 20bar and high voltage
requirement 2kV in Helium gas.
600A CURRENT LEADS (INSERTED)
The same leads after insertion in
the cryostat. Warm terminals are
seen ready for accepting the
external current connection. The
upper part houses transmitters for
the integrated temperature probes.
Cable connections at the top are for
instrumentation.
HEAT LEAK CURVE
Flexible simulation code allows us to
optimise the current leads for specific
static or dynamic scenario. Current
leads can be designed using estimated
material properties and then
theoretically optimised when the final
material has been characterised.
60A CURRENT LEADS
For integration in the Large Hadron
Collider we have in collaboration with
CERN built in excess of 360 assemblies
of conduction cooled 60A current
leads, technically specified and
proprietary design by CERN.
FURTHER INFORMATION
Andersen T.P., Benda V., Vullierme B.: 600 A current leads with
dry and compact warm terminal, Cryogenics 2002, Prague,
Czech Republic.
Andersen T.P., Benda V., Vullierme B.: Series production of 13
kA current leads with dry and compact ... , ICEC 20, 2004,
Beijing, China.
(Courttesy of Dr. V. Benda, CERN)
(Courttesy of Dr. A. Ballarino, CERN)
Mark & Wedell has since 1974 supplied products,
specialized machinery and parts according to
customer specifications. This includes development,
manufacturing and testing of Current Leads,
Annullus for offshore, Water Quality Monitoring
and much more.