Basler Electric DGC-2020 - Manual (Page 327)

Figure 7-43. Settings Explorer, Breaker Management, Breaker Hardware Screen
6. Click on Bus Condition Detection under the Breaker Management portion of the Settings Explorer.
This is where the parameters are set for detecting stable and failed bus and generator conditions.
The generator and bus condition parameters are critical since a breaker can be closed only
when (1) the generator is stable and (2) the bus is either stable or dead. See Figure 7-44.
Front Panel Navigation Path: SETTINGS > BREAKER MANAGEMENT > BUS CONDITION DETECT
a. Dead Bus Voltage Threshold and Activation Delay. When the voltage of either the generator
or bus is below this threshold for the duration equal to the activation delay, the generator or
bus is deemed “Dead”.
b. Gen Stable Over and Under Voltage Thresholds, and Over and Under Frequency
Thresholds, and the Bus Stable and Bus Failed Activation Delay. When the generator voltage
and frequencies are within the specified ranges for the duration equal to the Bus Stable
Activation Delay, the generator is deemed “Stable”. Otherwise it is deemed “Failed”.
c. Bus Stable Over and Under Voltage Thresholds and Over and Under Frequency Thresholds.
When the bus input voltage and frequencies are within the specified ranges for the duration
equal to the Bus Stable Activation Delay, the bus input is deemed “Stable”. Otherwise it is
deemed “Failed”.
9400200990 Rev X DGC-2020 Setup 7-39