11.7.2Grounding Configuration (without input neutral)
When the input source is
The jumper cable should stay in place. See Figure 11.13 for the jumper cable location.
If a ground fault interrupter is installed, the UPS is likely to trip the interrupter during transferring to/from the bypass circuit. It is recommended that the ground fault interrupter be set to a minimum delay of 0.5 seconds.
Input Source | < UPS Cabinet > |
|
3φ 3φ
N
N
3φ 3φ
GG
3φ | 3φ |
|
N | N | To the |
G | G | Load |
|
Jumper Cable
Remains in Place
FIGURE 11.14 - GROUNDING CONFIGURATION WITHOUT INPUT NEUTRAL
11.7.3Recommended Configuration (for delta-input)
If the input source is a
The jumper cable should stay in place. See Figure 11.13 for the jumper cable location.
Input Source | < UPS Cabinet > |
|
3φ 3φ
N
3φ 3φ
GG
3φ | 3φ |
|
N | N | To the |
G | G | Load |
|
Jumper Cable
Remains in Place
FIGURE 11.15 - GROUNDING CONFIGURATION FOR NON-GROUNDED DELTA-INPUT
G8000 Series Installation and Operation Manual | 41 |