Table 1 Number of HL-LHC circuits fed by the Cold Powering System, number of cables (MgB2 or REBCO) and current leads per circuit type. Nominal currents during operation in the HL-LHC, test currents and design currents of the circuits are reported.

From: A system solution for a 100 kA class high temperature superconducting line for HL-LHC and for wider energy applications

 

Number of Circuits

Number of Cables/Current Leads

Nominal Current

(kA)

Test Current

(kA)

Design Current

(kA)

Nb3Sn Quadrupole

1

2

16.23

18

18

Nb-Ti

Separation Dipole

1

2

12.11

15

18

Nb-Ti

Trim

1

3*

2

2

7**

Nb-Ti

Corrector

2

4

1.74

2

2

Nb-Ti

Corrector

2

4

1.34

2

2

Nb-Ti

Corrector

2

4

1.59

2

2

Total

9

19

81.36

94***

117****

  1. * The Trim circuit adjusts the current of the Nb3Sn Quadrupole circuit. It consists of three MgB2 cables and three current leads.
  2. ** The MgB2 and REBCO cables of the Trim circuit can transfer a current of up to 7 kA to cope with transients in the magnet circuit.
  3. *** Two cables/current leads of the Nb-Ti Trim circuit can be tested simultaneously.
  4. ****Total DC design current of the Superconducting Link.
Back to article page