MITSUBISHI | 2033C SERIES UPS | Page Number: |
ELECTRIC | OWNERS / TECHNICAL MANUAL |
FIGURE 1.2 Single Line Diagram - Bypass Operation. Load fed through static bypass line.
CB
AC input
User supplied
| Maintenance |
Static Transfer | Bypass |
Switch | Switch |
CB3
CONVERTER INVERTER
|
|
| Output |
CB1 | FI | FO | 52C |
FB |
| |
| ||
|
| |
CB2 |
| Power Flow |
|
| |
BATTERY |
| Not in Use |
|
| |
| 40kVA, 50kVA: | UPS Module |
| External Battery | |
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Referring to Figure 1.2, the Internal Static Bypass line is a Hard wired line through CB3 which supplies the critical load with unconditioned input power. The purpose of this line is to route power to the critical load while the UPS module is
The internal control system determines the operation of the two paths, with the load powered from the inverter being the normal operation.
Referring to Figure 1.3, if the input power is interrupted, the battery will immediately supply the DC power required by the Inverter to maintain continuous AC power to the load. A fully charged battery will provide power for the specified time at the rated load, or longer at reduced load.
When power is restored after a low battery shutdown, the Converter automatically restarts operation, recharges the batteries and the Inverter is automatically restarted without operator intervention. The load is assumed by the inverter automatically without operator intervention.
In the event of a power failure, the Converter will
MITSUBISHI ELECTRIC 2033C SERIES UPS