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PS operation report

This report details the operation and maintenance activities for the MPS and associated transformers from January to February 2010. It highlights the starting of the motor with and without brushes, cable damages observed, and results from power tests for 14 GeV cycles. Maintenance actions, including brush changes and technical stops, are summarized. Key incidents like trips and interventions are noted, alongside the need for additional monitoring tools and external system updates, informing next steps in operational efficiency and reliability.

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PS operation report

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  1. PS operation report Y.Gaillard EMC Meeting 11/05/2010

  2. MPS 21 January 2010 Start of the motor without the brushes in place Slip rings Need to be replaced Motor and motor windings have no visible damage

  3. 13MVA Transformer 25 January 2010 2 cables damaged EMD302

  4. 13MVA Transformer used for AMS Run MDPRO Cycle (14Gev): 1.2s Max voltage: 4kV Voltage end of ramp: 2.5kV Max B field: 6657 Gauss Green: magnet current Light blue: magnet voltage FGC limits: U= 8kV I= 3.2kA Results of the power tests for 14Gev cycles

  5. MPS 10 February 2010 Start of the motor with the brushes in place

  6. MPS • From the 10th of February no MPS trip with PIPO intervention • Few trips due to 18KV or cooling system fault. • Re-Start by CCC • Brushes maintenances: • 10 brushes changed on the 8th of April (week 14) • Next maintenance during the injector technical stop of 28-30 June (week 26)

  7. PS power converters • PFW + AuxPS: • No problem to re-start • MTE power converters: samplers timing synchronization to be reviewed • SMH57: • DCCT and GEREG auxiliary circuit breaker trips sometimes • Measurements to be done during next technical stop • Minitek: • Current survey performed on all converters during the start up. • 3 pieces bring back in the Lab for adjustement. • CBE • 2 driver cards • 2 Auxiliary power supplies • 3 RMS trips caused by wrong external reference (MD or LHC cycle) • External interlock system to be added • QKE 16: • 2 Phase fuses broken twice. • Oscilloscope monitoring installed. No event observed.

  8. PS schedule Next PS technical stop 31 May- 1 June Pleasesend me your PS workrequirementsnot laterthanMonday 17/May for FOM approval on Tuesday 18/May.

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