2.2 Mechanism of the UPS
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2.2
Mechanism of the UPS
At the normal operation
While the UPS is operating normally, the UPS operates an AC power supply as an
input, and supplies the output of constant voltage to connection device. Simultaneously,
the UPS charges an internal battery and prepares for the battery operation.
Output frequency synchronizes with input frequency.
+
Bypass
AC/AC converter
Boost chopper
Battery
Charger
[ UPS ]
To connection device
:Power is fed
:Power is not fed
Output
Input power supply
Electricity flow during normal operation
At the battery operation (In the event of an input power failure)
When the power failure or the abnormalities of voltage or frequency of an input power
supply occur while the UPS is operating, the UPS starts the electric discharge from the
battery, and continues to supply the stable electric power to the connection device. In
addition, the changeover to the battery operation is performed without instantaneous
power interruption.
If the input power supply returns (the voltage of the input power supply returns within
the rated specification), the UPS will return to the above normal operation automatically.
+
Bypass
AC/AC converter
Boost chopper
Battery
Charger
[ UPS ]
To connection device
:Power is fed
The abnormalities
occur at an input
power supply.
While the UPS is operating,
- Power failure
- The abnormalities of voltage or frequency
etc.
:Power is not fed
Output
Electricity flow during battery operation
Summary of Contents for M-UPS050AD2B
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