Basler Electric DGC-2020 - Manual (Page 320)

Breaker status for a breaker is communicated to the DGC-2020 by having only the breaker element
(either gen breaker or mains breaker) in the logic diagram and a physical input (contact from the
breaker indicating breaker status) must be connected to the Status input of the breaker block.
Steps Required to Configure a DGC-2020 for Generator Breaker Control
1. Connect the DGC-2020 according to the appropriate figure in Section 6, Installation under
Connections for the type of generator connection desired (WYE, DELTA, etc.).
2. Set up the basic system parameters that will govern engine operation and alarm and pre-alarm
annunciation. Details can be found in the paragraphs titled DGC-2020 Initial Setup. Additional details
of individual settings can be found in Section 4, BESTCOMSPlus
® Software.
3. Configure the generator breaker parameters under SETTINGS EXPLORER > BREAKER
MANAGEMENT > BREAKER HARDWARE. See Figure 7-36.
Front Panel Navigation Path: SETTINGS > BREAKER MANAGEMENT > BREAKER HARDWARE >
GEN BREAKER
Figure 7-36. Settings Explorer, Breaker Management, Breaker Hardware Screen
a. Breaker Close Wait Time. This is a time interval in which it is expected that the breaker will
transition from open to closed or closed to open. If it does not change state within that time,
either a Gen Breaker Close Fail or Gen Breaker Open Fail will be annunciated for generator
breaker failures, and/or Mains Breaker Close Fail or Mains Breaker Open Fail will be
annunciated for mains breaker failures.
b. Generator Breaker.
i. Enable Dead Bus Close if it is desired to close to a dead bus.
ii. Set the contact type and pulse times if pulsed contacts are used.
iii. Set the breaker close time. This is the time used by the anticipatory synchronizer to
calculate the advance angle before 0 degrees slip angle that a breaker close
command will be issued.
c. Mains Breaker.
d. Set the Mains Breaker as Configured if it is used, otherwise do not configure these settings.
i. If the mains breaker is configured, set the contact type and pulse times if pulsed
contacts are used.
7-32 DGC-2020 Setup 9400200990 Rev X