Basler Electric DGC-2020ES - Manual (Page 99)

9469200990 Rev C 91
Generator Current Sensing
The DGC-2020ES has sensing inputs for A-phase, B-phase, and C-phase generator current. A DGC-
2020ES with a style number of 1xx has a 1 Aac nominal current sensing and a DGC-2020ES with a style
number of 5xx indicates 5 Aac nominal current sensing. Generator current sensing terminals are listed in
Table 10.
Table 10. Generator Current Sensing Terminals
Terminals Description
37 (IA–) A-phase current sensing input
38 (IA+)
35 (IB–) B-phase current sensing input
36 (IB+)
33 (IC–) C-phase current sensing input
34 (IC+)
Note
Unused current sensing inputs should be shorted to minimize noise
pickup.
Caution
Generator current sensing terminals 37 (IA–), 35 (IB–), and 33 (IC–)
must be terminated to ground for proper operation.
Generator Voltage Sensing
The DGC-2020ES accepts either line-to-line or line-to-neutral generator sensing voltage over the range of
12 to 576 volts, rms line-to-line. Generator voltage sensing terminals are listed in Table 11.
Table 11. Generator Voltage Sensing Terminals
Terminal Description
40 (GEN VN) Neutral generator voltage sensing input
41 (GEN VC) C-phase generator voltage sensing input
43 (GEN VB) B-phase generator voltage sensing input
45 (GEN VA) A-phase generator voltage sensing input
Bus Voltage Sensing
Sensing of bus voltage enables the DGC-2020ES to detect failures of the mains (utility). The DGC-
2020ES senses A-phase, B-phase, and C-phase bus voltage. Bus voltage sensing terminals are listed in
Table 12.
DGC-2020ES Terminals and Connectors