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Manual HDL/LDL Override Summary. QMWG. Daily Summary Graph. For this analysis, we captured unique HDL/LDL overrides An override is considered unique if that same Resource did not have an override within the last 10 minutes There were 43 total unique overrides in November
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Daily Summary Graph • For this analysis, we captured unique HDL/LDL overrides • An override is considered unique if that same Resource did not have an override within the last 10 minutes • There were 43 total unique overrides in November • As compared to 17 in October and 13 in September
Reasons for Manual HDL/LDL Overrides • A significant number of overrides required as a result of outages creating transient stability issues • Also needed overrides for contingencies becoming unsolved in RTCA due to low voltages • A small number due to Operators pre-posturing the system in preparation for outages • Remainder due to voltage support needs resulting from planned outages