11 UPS Wiring
Note: Always consult your local and NEC electrical codes for wiring, cabling, and circuit protection device requirements.
Figure 11.1 illustrates the external wiring of the G8000 UPS. See corresponding section to each wiring term.
•Power cable connection at terminal blocks/buses and external breaker provision for the AC input/output, Bypass Input and DC input.
•Earth ground wire at grounding terminal.
•Control wire terminal TB1 (battery cabinet and bypass breaker)
Bypass 3φ4W
Bypass
Breaker
AC Input
3φ3W
Input
Breaker
Ground
Wire
< UPS > |
|
|
|
| Contactor + Thyristor |
| |
|
| Bypass |
|
Input |
| Contactor |
|
|
|
| |
Contactor |
|
| Output |
|
|
| 3φ4W |
Rectifier | Inverter | Inverter | Output |
|
| Contactor | Breaker |
Chopper
Charger
TB1
DC input
Battery
Breaker
< Battery Cabinet >
FIGURE 11.1 - EXTERNAL WIRING DIAGRAM
An external maintenance bypass may be installed in parallel with the UPS to allow servicing of the G8000 while maintaining power to the UPS load. Contact the Toshiba Customer Service for further information.
G8000 Series Installation and Operation Manual | 29 |
