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Powering Tests Sector 7-8 - Report 22.06.2007

Test Report of Friday 22.06.2007

• RB.A78
  • PIC1 - Completed OK after a the solution of an adjustment problem in the current loop controller of the QPS (few mA too low).
  • Connection of the 60A conveter to the RB circuit in the UA83 side. The TF measurements could not be completed because the converter noise made the bus-bar quench detector trip everytime it was switched on. The detection threshold will be increased on Monday.
  • The time out preventing from closing the switches too early after a switch opening has been lowered in order to speed the tests up.

• RQF.A78
  • PLI1 (760A) completed - Test OK
  • PLI2 (2000A) completed - Test OK
  • PLI3.1 (current cycle up to 6500A) completed - Test OK

• 60 Closed Orbit Correctors
  • PCC carried out in one circuit.
  • All the circuits released by ElQA have been connected to the power converter.

• AB/PO current stability measurements in RD2.L8 - Completed

• Empty of DFBMA and Q4/D2 started in the evening

Test Plan for Monday 25.06.2007

• RB.A78
  • Provisional correction of the detection threshold of the bus-bar quench detector in order to allow TF measurement with the 60A converter.
  • TF measurement
  • Desconnection of the 60A converter and final connection of the RB converter to the circuit; PCC tests
  • Set detection threshold back to operation value
  • PIC2
  • PLI1 (760A)
    • PLI1.1 - Current cycle
    • PLI1.2 - Energy extraction discharge (quench to a current lead)
    • PLI1.3 - Powering Failure from PC
    • PLI1.4 - FPA from PIC
    • PLI1.5 - Quench heater discharge on a selected magnet
  • PLI2 (2000A)
    • PLI2.1 - Current cycle
    • PLI2.2 - Energy extraction discharge (quench to a current lead)
    • PLI2.2b - SPA from PIC
    • PLI2.3 - Quench heater discharge on a selected magnet

• RQF.A78 (6500A)
  • PLI3.2 - Energy extraction discharge
  • PLI3.3 - Quench heater discharge on 12L8 SSS

• 600A Correctors
  • Software upgrade by QPS
  • PCS tests on the circuits: RQT12.L8B1, RQS.L8B1, RCO.A78B1

• DFBMA will me refilled in the afternoon

• 60A Closed Orbit Correctors: PCC and P2N whenever possible