...With feedback from the operation at KEK, we can further develop and improve high availability power supplies for future installations. Below are different items that we would like monitored so that further understanding and development can be made to the power supply design.
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<li>Stability <br>
Record the value of the current and the set point throughout a run so that we can see the stability of the power system while running for months. Data can be taken every few minutes.
<li>EPICS Interface <br>
Does the EPICS interface provide sufficient controls and diagnostic information? Is using this interface intuitive and convenient? Should any changes be made to ease operations?
<li>Failure Rate and Cause <br>
If there is a power supply failure, we would like to know when and how it happened. A diagnosis of the problem should be recorded. This information will point out any flaws in the design so we can make the necessary improvements in the next generation of power supplies.
<li>Time and Method of Replacement and Repair <br>
When there is a failure, record the time requirement to replace and repair the power supply. This will reveal necessary improvements needed to reduce the replacement and repair time.
<li> Need for Hot Swap Capabilities <br>
Because these power supplies consist of redundant power modules, a failure in one power module should not take down a power system. The power system will continue to run with a failed module. The failure rate of the power modules will determine if hot swap capability is needed for future installations.
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