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36
G8000 Series with Isolated Output Installation and Operation Manual
11.5 Grounding Conguration
This section describes the grounding conguration to be used with this UPS.
A 2 AWG (or 38 mm
2
) factory-installeded jumper cable is provided between the neutral terminal and
ground bus in the UPS cabinet. The jumper cable location is illustrated below.
FIGURE 11.9 - JUMPER CABLE BETWEEN THE NEUTRAL TERMINAL & GROUND BUS
Since the input source is a delta-connection (3-phase 3-wire) without ground, the neutral terminal in the
UPS cabinet must be connected to the ground bus with the internal jumper cable as shown in Figure
11.9.
The jumper cable should stay in place. See Figure 11.9 for the jumper cable location.
FIGURE 11.10 - GROUNDING CONFIGURATION FOR NON-GROUNDED DELTA-INPUT
Ground
Bus
Jumper
Cable
Neutral
Terminal
100-150 kVA
3 f
3 f
3 f
3 f
3 f
3 f
Junper Cable
remains in place
N
N
G
G
G
G
To
LOAD
UPS Cabinet
Input Source