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MULTILIN DGPR – INSTRUCTION MANUAL
INSTALL HARDWARE
CHAPTER 3: INSTALLATION
Figure 25 shows the eight 14-pole terminal blocks at the back of the unit, designated as
follows:
•
AH, BH — CT and VT connections
•
AE, AF, AG, BE, BF, BG — Power supply, contact input, and contact output connections
Figure 25: DGPR eight 14-pole terminal blocks (bottom)
To connect the wires, follow these steps and the "DGPR wiring/schematic drawing
GPRP000002":
1.
Ensure that power to the DGPR is off.
2.
Connect the CT and VT input wires to the same terminal blocks as the DGP (AH, BH) at
the back of the DGPR unit.
3.
Connect contact Input and Contact Output wires to the same terminal blocks as the
DGP (AE, AF, AG, BE, BF, BG) at the back of the DGPR unit.
4.
For grounding, the DGPR unit is equipped with a ground bar with 10 connection points
to ground G60 modules including the power supply modules, as shown in Figure 26.
Connect the DGPR ground bar directly to the generator protection panel ground bus.
The recommended wire gauge to connect DGPR ground bar to GPP ground bus is 6
AWG.
5.
For power supply, the DGPR has redundant power supply. Slots B and W on the G60
are main and redundant power supplies, respectively. To connect power wires to the
terminals at the back of DGPR, use one of these two options:
–
Two sources of power are available in the rack — Connect first power supply
wires to AG1(+) and AG2(-) and second power supply wires to BG13(+) and BG14(-)
as shown in Figure 27.
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