Basler Electric DGC-2020HD - Manual (Page 96)

86 9469300990 Rev B
Bus Condition Detection
BESTCOMSPlus ® Navigation Path: Settings Explorer, Breaker Management, Bus Condition Detection
Front Panel Navigation Path: Settings Explorer > Breaker Management > Bus Condition
Bus condition thresholds determine when the generator bus, bus 1, and bus 2 are considered to be stable
or dead.
Each bus has its own settings screen. These include the Gen Condition Detection, Bus 1 Condition
Detection, and optional Bus 2 Condition Detection screens. Three-phase and single-phase threshold
settings are provided on each screen. The Gen Condition Detection screen is described, below. The Bus
1 and 2 Condition Detection screens are identical in function to the Gen Condition Detection screen.
The Gen Condition Detection screen is illustrated in Figure 42 . The Bus 1 Condition Detection and optional
Bus 2 Condition Detection screens are also found in the Bus Condition Detection category. Settings are
listed in Table 35.
When the bus voltage is below the Dead Bus Threshold for the duration of the Activation Delay, the bus is
deemed “Dead”.
Four thresholds determine a stable bus. These consist of overvoltage, undervoltage, overfrequency, and
underfrequency. Each of these thresholds has an activation delay. When the bus voltage and frequency
stay within the thresholds for the duration of the corresponding activation delays, the bus is deemed
"stable". Otherwise, it is deemed "failed".
Caution
The bus condition parameters are critical. They determine when a
breaker can be closed.
Breaker Management DGC-2020HD