UPS RMH700/1000/1500
Instruction Manual
RMH Series
Page 12 of 37
5 System description
The UPS operates continuously according to the double converter principle. It
ensures the preparation of the line current and delivers an uninterrupted and
fault-free single-phase voltage to mission-critical consumer loads In addition to
supplying consumer loads, the equipment also keeps its internal batteries in a
fully charged state. In the event of a power failure or power fault, the UPS
continues to deliver a clean uninterrupted voltage supply to the UPS output.
During support operation, energy is drawn from the batteries.
Fig. 1:
Block diagram
RMH series
700/1000/1500
The block circuit diagram shows the individual modules of the equipment and
provides a general impression of how they interact.
When the mains power failure exceeds the bridging time of the UPS, it shuts
down to prevent deep discharging of the batteries. When the mains power
supply is restored, the UPS restarts automatically, supplies the consumer
loads and controls the charging of the battery pack.
Notable performance features of the RMH series online UPS include:
o
Absolutely no interruption or signal modification in event of primary
mains power supply failure.
o
Perfect sine voltage at the UPS output. Greatly enhanced quality of
output voltage when compared to the mains voltage of the house
network.
o
Processor-controlled bypass operation;
o
Input-side “power factor” correction (>0.95);
