International Workshop on Superconducting Magnets Test Stands – Uppsala University
Explore the 3rd International Workshop on superconducting magnets test stands held at the University of Uppsala with a focus on quench detectors, magnet protection systems, CLIQ firing, quench heaters activation, and energy extraction processes in superconducting magnet technology. Enhance your knowledge about magnet protection, event time analysis during quench, and various triggering mechanisms. Dive into the details of basis quench detectors, magnet currents, and energy extraction methods utilized in this cutting-edge workshop.
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Presentation Transcript
3rd International Workshop of the Superconducting Magnets Test Stands University of Uppsala Quench Detector Reaction Times Piyush N Joshi Superconducting Magnet Division Brookhaven National Laboratory. NY June 12, 2019
Content 1.Magnet protection system 2.Time analysis of events during quench Threshold detection Firing of CLIQ Firing of quench heaters Activation of Energy Extraction
Basis Quench detector Trig to Fast Logger Trig to CLIQ Trig to EE Trig to Quench Heater PS Trig to Magnet PS Trig to Cryo System Coil L1L2 FPGA based Quench Detector Half coil voltages Opto Isolators Coil L3L4 Coil Diff Threshold = 150mV Validation time = 4ms mV seconds 4ms 4
Firing of CLIQ 80 s Magnet Current MagnetCurrent 30 s second second
Firing of Quench Heaters 10 s 6
Activation of Energy Extraction 200 s Magnet Current Vce1 A second Energy Extraction Delayed by 10ms Voltage across IGBT 7
Thanks for your attention Any ? 8
