Distribution Circuit Automation Scheme Design Colin Hawthorne. 04/26/16

Fully deploy across service area Substation by substation 11/23/2018 Deployment Design Fully deploy across service area Substation by substation Address poor reliability substations first Address substations with high customer counts Maximize benefits Low reliability circuits Break circuits into quarters Automate multiple open ties Other circuits Split circuit in halves Automate one open tie Share open devices between circuits

Deployment Implementation 11/23/2018 Deployment Implementation Approximately 100 / year Distribution develop plans Where plan deployment corresponds to reliability issues Worst performing substation Individual circuit performance Reliability calculated over multiple year performance Utilize existing automation as possible

10% - 300% root cause analysis Failure of existing devices 11/23/2018 Outside of Deployment 10% - 300% root cause analysis Failure of existing devices On Going automation reviews Review distribution development plans for automation needs Recommend circuit reconfiguration to maximize automation effectiveness Install new automation to restore lost functionality due to switching

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