9
6-10kVA
Figure 2-11 The UPS operating principle
1. Input filter: Perform a filter for input .It provides clean AC power to the UPS.
2. AC/DC converter: In Normal mode, it converts the AC input power to regulated DC power.
3. DC/DC converter: Raises the DC Voltage from the battery system to the optimum
operating voltage for the inverter when the UPS operates in Battery mode.
4. DC/AC inverter: In Normal mode, it utilizes the DC output of the AC/DC converter and
inverts it into precise, regulated sine wave AC power. In Battery mode, it receives energy
from the battery through the DC/DC converter.
5. Bypass: It is very important in the UPS system. In the event of an UPS fault that will not
lead to UPS shutdown, the load will be automatically transferred to the bypass. Meanwhile,
the LED indicators will indicate the fault type, and the fault information will be reported
through the communication ports.
6. Charger: Standard model: 1A charging current for PANTHER 1KR ~3KR; charging curre
nt 2A for PANTHER 6KR~10KR; Long backup model: 7A charging current for
PANTHER 1KR-XL ; 8A charging current for PANTHER 2KR-XL ~ 3KR-XL; 8A
charging current for PANTHER 6KR-XL ~ 10KR-XL
7.
Battery: Sealed maintenance-free lead #acid battery can be used as the DC source of the UPS.
8. Output filter: Perform a filter for output .It provides clean AC power to the load.
