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

Page 30
Image 30
Emerson 30-130 kVA installation manual Grounding for R/S or X/Y UPS Models, 1+1 Configuration