This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
turning_magnets_on_off [2015/10/19 14:49] pereira [Turn on the trim coils of the Spectrograph dipoles] |
turning_magnets_on_off [2017/05/26 15:37] pereira [Arming of Dump Switch] |
||
---|---|---|---|
Line 13: | Line 13: | ||
=== Purpose === | === Purpose === | ||
- | The power supply for each of the spectrograph dipoles has a dump switch that must be armed to send current through the dipoles. The dump switch is in place to protect the conductors inside the cryostat from melting in the event that the magnet becomes non-superconducting while energized with high current. When triggered, the dump switch provides a high-current short circuit path to dump the energy from the magnet. The kinds of error conditions that will trigger the dump switches are the same conditions that trip off power supplies to other superconducting magnets on the beamlines. | + | The power supply for each of the spectrograph dipoles has a dump switch that must be armed (closed) |
- | While designed to protect the magnet from a more expensive repair if the magnet quenches when energized, it is possible that the dump switch can get damaged if triggered because of the large amount of energy involved. | + | While designed to protect the magnet from a more expensive repair, if the magnet quenches when energized, it is possible that the dump switch can get damaged if triggered because of the large amount of energy involved. |
=== Operation === | === Operation === | ||
- | The dump switches of the first and second dipoles are located on the bottom and middle level of S3. The two pictures below show the dump-switch control for the second spectrograph dipole. A label in the control box explains how to arm the switches. | + | The dump switches of the first and second dipoles are located on the bottom and middle level of S3. The dipole magnet is ready to be turned on when the front panel of the dump switch box shows the red label " |
Line 28: | Line 27: | ||
===== Turn on S800 magnets power supply ===== | ===== Turn on S800 magnets power supply ===== | ||
+ | * **Troubleshooting**: | ||
+ | |||
+ | {{: | ||
+ | |||
* Open the NCS PanelMate application and load file **THallps.ui**, | * Open the NCS PanelMate application and load file **THallps.ui**, | ||
Line 40: | Line 43: | ||
- | * **Troubleshooting**: | ||
- | |||
- | {{: | ||
===== Set S800 magnets settings ===== | ===== Set S800 magnets settings ===== |