Basler Electric DECS-400 - Manual (Page 104)

92 9369700990 Rev R
Figure 59. Protection Screen, EDM Tab
The Calculator button, adjacent to the Pole Ratio field, can be clicked to access the Pole Ratio Calculator
shown in Figure 60. Entering the number of exciter poles and the number of generator poles and clicking
the Calculate button calculates the pole ratio. Clicking the Apply button or OK button enters the calculated
result in the Pole Ratio field of the EDM tab.
Figure 60. Pole Ratio Calculator
Open Diode – Option. This setting enables and disables open exciter diode protection.
Open Diode – Pickup Level. This setting configures the percent of rated field current that indicates an
open exciter diode. A setting of 0 to 100.0 percent may be entered in 0.1 percent increments.
Open Diode – Disable Level. This setting configures the percent of rated field current that disables both
open- and shorted-diode protection. A setting of 0 to 100.0 percent may be entered in 0.1 percent
increments.
Open Diode – Delay. This setting establishes the time delay between when an open exciter diode is
detected and annunciated. A setting of 10 to 60.0 seconds may be entered in 0.1 second increments.
Shorted Diode – Option. This setting enables and disables shorted exciter diode protection.
Shorted Diode – Pickup Level. This setting configures the percent of rated field current that indicates a
shorted exciter diode. A setting of 0 to 100.0 percent may be entered in 0.1 percent increments.
Shorted Diode – Delay. This setting establishes the time delay between when a shorted exciter diode is
detected and annunciated. A setting of 5 to 30.0 seconds may be entered in 0.1 second increments.
BESTCOMS™ Software DECS-400