5 System description
The UPS is in a non-stop service with double conversion mode. It conditions
the current circuit and supplies an uninterruptible, undisturbed and one-phase
voltage for critical machines. During supplying the connected machines, it
keeps its internal batteries in a charged condition. In case of a power failure or
a power disturbance, the UPS supplies also uninterrupted and clean voltage at
its output. During battery service, the energy comes from the batteries.
This block drawing shows the particular modules and their interactions.
If the power failure goes longer than the autonomy time of the UPS, it
switches-off automatically to avoid total discharge of the batteries. When the
circuit voltage returns, the UPS switches-on automatically, supplies the
connected machines and controls the load of the batteries.
Special features of the MH Online UPS are:
No interruptions or signal-changes in case of breakdown of the primary
circuit supply;
Perfect sinus voltage at the output of the UPS. Much better quality of the
output voltage compared to the voltage of the in-house network;
Bypass with process control;
„Power factor“correction at the input (>0.95);
High efficiency factor of the inverter >90% DC / AC;
efficient communication interface (RS232- Interface)
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