Figure 10 Grounding Diagram, R/S or X/Y UPS Models, 1+1 Configuration
R/S or X/Y CONFIGURATION
3W+G
3W+G | Y |
|
N
| SYSTEM PARALLELING CABINET |
G | 4W+G |
3W+G ONLY
CRITICAL
LOAD
3W+G
3W+G
R/S or X/Y CONFIGURATION
4W+G
Y
N
G
N
G
LOCAL
GROUNDING
ELECTRODE
7.7Grounding for R/S or X/Y UPS Models, 1+1 Configuration
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20 Configuring Your Neutral and Ground Connections