MARK & WEDELL
Complete in house engineering and manufacturing facilities
Current Leads
- 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
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 leads are for 600A, insertion length 1.4m, design pressure 20bar and high voltage requirement 2kV in Helium gas.
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.
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.
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.
