PIP-II Project Risk: SSR1 QPM Inadequate
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Bruce Hanna
PIP-II Risk Workshop
Thursday 4/6-4/7/2017
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Risk Owner: Bruce Hanna
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The PIP-II Project Quench protection for SSR1 solenoid
magnets
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Original design required a dump
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New Cryo Magnetics design has cold diodes
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Have quenched magnets at test facility
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Risk Cause:
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Planned QPM system does not include a resistive dump; if a
Quench analysis shows one is needed we will need to modify
the QPM
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Risk Effect:
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Inadequate quench protection can result in damage to the
magnet.
PIP-II Risk Management
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A quench analysis will be done for SSR1. As a check the
analysis will be used for SSR1 which has quench results.
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If we determine that voltages or temperatures could
exceed limits we may need to add a dump.
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Probability
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10%
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Technical Impact
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Low
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Risk Rank
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1 (Low)
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Cause or Trigger
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Quench analysis will indicate if this is necessary
PIP-II Risk Management
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Cost Impact: (Single Point)
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$20
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Estimate:
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Estimated cost of HINS dump.
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Quality of Risk Estimate
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Guess based on manpower costs and old Pos for dump parts.
PIP-II Risk Management
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Project will work with TD and AD engineers to determine if we
need to make changes.
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Start Date:
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Summer of 2017.
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End Date:
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January 2018
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Monitoring Required:
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Periodic contact with TD engineers
PIP-II Risk Management
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Identify the risk owner, cause, and effect for inadequate quench protection in the PIP-II Project related to SSR1 solenoid magnets. Mitigation plan involves working with engineers to determine necessary changes starting summer 2017.
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Presentation Transcript
PIP-II Project Risk: SSR1 QPM Inadaquate Bruce Hanna PIP-II Risk Workshop Thursday 4/6-4/7/2017
Risk Summary: Opportunity or Threat Risk Owner: Bruce Hanna The PIP-II Project Quench protection for SSR1 solenoid magnets Original design required a dump New Cryo Magnetics design has cold diodes Have quenched magnets at test facility Risk Cause: Planned QPM system does not include a resistive dump; if a Quench analysis shows one is needed we will need to modify the QPM Risk Effect: Inadequate quench protection can result in damage to the magnet. PIP-II Risk Management 2
Risk: Probability, Technical Impact A quench analysis will be done for SSR1. As a check the analysis will be used for SSR1 which has quench results. If we determine that voltages or temperatures could exceed limits we may need to add a dump. Probability 10% Technical Impact Low Risk Rank 1 (Low) Cause or Trigger Quench analysis will indicate if this is necessary PIP-II Risk Management 3
Risk: Cost Impact and Estimate Cost Impact: (Single Point) $20 Estimate: Estimated cost of HINS dump. Quality of Risk Estimate Guess based on manpower costs and old Pos for dump parts. PIP-II Risk Management 4
Risk Mitigation Project will work with TD and AD engineers to determine if we need to make changes. Start Date: Summer of 2017. End Date: January 2018 Monitoring Required: Periodic contact with TD engineers PIP-II Risk Management 5
