Basler Electric DGC-2020 - Manual (Page 149)

Figure 4-31. Sensing Transformers
A Gen PT Primary Volts: Adjustable from 1 to 99,999 Vac in 1 Vac increments.
B Gen PT Secondary Volts: Adjustable from 1 to 480 Vac in 1 Vac increments.
C Bus PT Primary Volts: Adjustable from 1 to 99,999 Vac in 1 Vac increments.
D Bus PT Secondary Volts: Adjustable from 1 to 480 Vac in 1 Vac increments.
E Gen CT Primary Amps: Adjustable from 1 to 9,999 Aac in 1 Aac increments.
F Current Sensing Input Type: 5A CTs or 1A CTs.
G Gen CT Low Line Scale Factor: Adjustable from 0.001 to 3 in increments of 0.001.
Relay Control
The default operational setting for the Start A , Run B , and Prestart C relays is “Predefined” or standard. Any
of these relays can be logic driven by selecting the “Programmable” setting. Logic driven (programmable)
relays must be set up using BESTlogicPlus.
The BESTCOMSPlus Relay Control screen is illustrated in Figure 4-32.
Figure 4-32. Relay Control
A Start: Predefined or Programmable.
B Run: Predefined or Programmable.
C Prestart: Predefined or Programmable.
Auto Config Detection
When enabled A , this feature allows the DGC-2020 to automatically detect its sensing configuration in
relation to the generator. The possible sensing configurations are three-phase, single-phase AB, and
single-phase AC which are based upon line to line (L-L) voltage measurements.
Upon starting the genset, the configuration of the generator is automatically detected. Metering and
generator protection are adjusted accordingly. Single Phase Override, Single Phase AC Sense Override,
9400200990 Rev X DGC-2020 BESTCOMSPlus
® Software
4-39