5.16.6. SOURCE FREQUENCY DIFFERENTIAL LOWER THRESHOLD
Set to the desired source frequency differential lower set point as expressed in
percentage of nominal system frequency. An in-sync transfer operation will be blocked
if the measured difference between both source frequencies reaches a lower threshold
value than specified.
5.16.7. SOURCE VOLTAGE DIFFERENTIAL HIGHER THRESHOLD
Set to the desired source voltage differential higher set point as expressed in percentage
of nominal system voltage. An in-sync transfer operation will be blocked if the measured
difference between both source voltages reaches a higher threshold value than
specified.
5.16.8. SOURCE VOLTAGE DIFFERENTIAL LOWER THRESHOLD
Set to the desired source voltage differential lower set point as expressed in percentage
of nominal system voltage. An in-sync transfer operation will be blocked if the measured
difference between both source voltages reaches a lower threshold value than specified.
5.16.9. TRANSFER SWITCH MECHANISM OPERATION TIME
The In-sync transfer logic includes an anticipatory closing delay to ensure in-sync
transfers occur within pre-set voltage and frequency thresholds for a wide variety of ATS
mechanism types. Enter in the time, in milliseconds, the specified ATS mechanism
operation time to close a power switching device.
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