Test plan for Coil 1

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Note (Nov 17) Flushing out plan in D000000-13-13-P001 Rev A (p. 6 and 7 of document)

  1. Preparations
    1. Connect magnet power leads to power supply
      • NOTE: If testing is interrupted for any reason, the following 4 steps must be completed immediately prior to resumption of testing.
      • Mark Stevens
    2. Cordon magnet test area using initial ANSYS analysis results as a guide to locate ropes. Post hazard signs at all entry locations.
      • Tom Carstens
    3. Remove all loose, ferromagnetic items from the test area
      • Tom Carstens
    4. Set red beacons with 5 Gauss bioelectric device limit at the 3 aisle positions (beacons turn on at 5 Gauss)
      • Personnel: Jennifer Williams ES&H, Tom Carstens. Note beacons have been calibrated to flash at 5 Gauss. Signage?
    5. Ensure LCW to power supply is turned ON
      • Mark Stevens
    6. Set Slew Rate to 0.25 A/s
      • Mark Stevens
    7. Clear all interlocks
      • Magnet operator (Jonathan?)
    8. Zero out the strain gauge readings at zero current. (Calibration in progress of a strain gauge of coil 2 @LN2 temp)
      • Mark Wissmann
    9. At HMI, set axial Heim column force limit to ±10,OOO Ib and radial Heim column force limit to ±7500 Ib
      • NOTE: At all current settings below, monitor the Radial Heim Column loads for evidence of radial offset of the coil center from the yoke center. Compare axial Heim Column forces to the table of expected force vs. current.
      • George Biallas to generate table of forces.
    10. Check slew rate
    11. Ramp magnet to 5 A for each of checked items below
      • Check interlocks via checklist
      • Behavior of interlocks at low current?
    12. Using field probe, check the Bfield at several locations to verify expected magnitude and direction. If necessary, adjust 5 Gauss, bioelectric device boundaries as necessary to match MEASURED field.
    13. Set magnet current to 0 A, wait for 0 A indication
  2. Check turn-to-turn shorts
    1. Check DAQ and data format
    2. Check if data is ok, if not reset and ramp up to 50 A.
  3. Ramp to 50 A, repeat field probe measurement and, if necessary, adjust personnel boundaries.
    1. Perform checkout of slow and fast interlock circuits with - DO NOT EXCEED 50 A.
      • Use checklist
    2. Repeat field probe measurement and, if necessary, adjust personnel boundaries
    3. Ramp to 0 A, wait for 0 A indication
  4. Testing to high currents
    1. Set ramp rate to 1.8 Amps/Sec
    2. Test for turn-to-turn shorts - do not exceed 100 A.
    3. Perform a sweep of the test area to locate and remove any ferromagnetic materials
    4. Ramp to 1000 A in steps of 100 A, repeating field probe measurement and adjusting 5 G boundaries at each step.
      • Record a screenshot of stabilized strain/force values at each step
    5. Repeat field probe measurement and, if necessary, adjust personnel boundaries
    6. Gradually ramp the current up to 1500 A. The steps should be 50 A with a pause of 10 minutes at each step.
      • Watch carefully for indication of force reversals above 1000 A
      • Record a screenshot of stabilized strain/force values at each step
      • Repeat field probe measurement at each step and adjust personnel boundaries as required
    7. Set magnet current to 0 A, wait for 0 A indication
    8. Ramp to 1500 A
    9. Trip a fast dump