Design and construction of a resistive energy dump device for bipolar superconducting magnet systems
Abstract
Composed of an isolation switch, a semiconductor switching module, and a dump resistor, the resistive dump device provides a viable protection scheme. Operationally, several conditions are capable of activating the isolation switch and triggering the bipolar SCR switching module. Manual dump commands, for instance, permit the operator to dump field energy in the event of observed abnormalities. A special voltage tap quench detector senses the aforementioned abnormal power supply output inversion and also fires the dump circuit. Regardless of the nature of the trigger input, however, activation of the energy dump device diverts coil current through the dump resistor. I2R losses over time then safely dissipate stored magnetic field energy.
- Publication:
-
Unknown
- Pub Date:
- May 1977
- Bibcode:
- 1977dcre.rept.....M
- Keywords:
-
- Design Analysis;
- Dumping;
- Electric Relays;
- Magnets;
- Superconductors;
- Resistors;
- Superconducting Magnets;
- Voltage Regulators;
- Plasma Physics