| Title | Transient DC-Arc Voltage Model in the Hybrid Switch of the DTT Fast Discharge Unit |
| Publication Type | Conference Paper |
| Year of Publication | 2021 |
| Authors | Lopes, Carmelo Riccardo, Ala, Guido, Zizzo, Gaetano, Zito, Pietro, Lampasi, Alessandro |
| Conference Name | 2021 IEEE International Conference on Environment and Electrical Engineering and 2021 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) |
| Date Published | sep |
| Keywords | Arc voltage, Coils, composability, confinement, Discharges (electric), fast discharge unit, hybrid circuit breaker, privacy, pubcrawl, quench protection, resilience, Resiliency, superconducting magnets, superconductivity, Switches, Toroidal magnetic fields, Voltage |
| Abstract | The focus of this work is the transient modelling of the DC-arc voltage on a Hybrid Switch (a mechanical switch in parallel with a static switch) of a key protection component called Fast Discharge Unit (FDU) in the Divertor Tokamak Test (DTT). The DTT facility is an experimental tokamak in advanced design and realization phase, which will be built in the ENEA Research Centre in Frascati (Italy). The FDU allows the safe discharge of the Toroidal Field (TF) superconducting magnets when a quench is detected or a failure occurs in the power supply or in the cryogenic system. In this work, the arc conductance of the mechanical By-Pass Switch (BPS) of the Hybrid Switch is modelled using the well-known Mayr-Cassie equations and the Paukert arc parameters. The simulations show a good agreement with the expected results in terms of voltage and current transient from the mechanical switch to the static switch. |
| DOI | 10.1109/EEEIC/ICPSEurope51590.2021.9584654 |
| Citation Key | lopes_transient_2021 |
Transient DC-Arc Voltage Model in the Hybrid Switch of the DTT Fast Discharge Unit