S&C Instruction Sheet 1022-540 11
(c) If voltage remains continuously above the
High-Voltage Override
setpoint for the
duration of the
Over-Voltage Override-Time
timer, the control switches the
bank out. If voltage remains continuously below the
Low-Voltage Override
setpoint for the duration of the
Under-Voltage Override-Time
timer, the control
switches the bank in.
Time-Biased Voltage Control Mode
When
Automatic
mode is enabled and the control is in
Time-Biased Voltage
mode, the
control switches the bank based on two sets of
High-
and
Low-Voltage
setpoints.
Time-
Biased Voltage
mode uses the same logic as
Voltage Only
mode, except:
• The voltage setpoints are different for scheduled and unscheduled times.
• There is only one
Voltage-Change Time-Threshold
timer.
• The control does not use the
Preferred Capacitor Bank Position
setpoint.
Figure 2. Voltage control switching with no preferred-bank position selected.
Figure 3. Voltage control switching with the preferred-bank position in Online mode.
IntelliCap Control Operation