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GUID-64E3E9D7-7F66-4451-906E-B934BF7F9785 V1 EN
Figure 392: Save to Device Confirmation Screen
4. Select OK . TCC600 will display a "Setpoints Successfully Written to Control"
confirmation screen.
GUID-F30E8D82-95A5-4460-AAEE-BBCD9FAD3FEB V1 EN
Figure 393: Setpoints Successfully Written To The Control Confirmation
Screen
7.2 Regulation limits
Overvoltage Limit and Voltage Runback
Setpoints are available to establish a block raise limit and voltage runback. The
overvoltage limit is adjustable from 95.0 V to 135.0 V in 0.1 V increments. The
overvoltage limit must be set above the upper control band limit. This limit is one portion
of the First Customer Protector to limit overvoltage from line drop compensation action
during heavy loading.
The voltage runback level is the Block Raise setting plus the Runback Deadband setting
(this establishes the First Customer Protection Level.) This deadband should not be
confused with the control deadband above and below the center voltage setpoint, which is
generally called the control "bandwidth".
The voltage runback deadband is used to assure that the runback setting is sufficiently
above the upper voltage limit setting to limit hunting. It is adjustable from 1.0 to 4.0 V in
0.1 V increments, and must be set greater than the voltage change of one single tapchange,
1VAC388793-MB A
Section 7
Setpoints
TCC300 493
User Manual