UPS for 480 Vac Grid, User Guide, doc. rel. 4.0
150
8.3.4.2.
Operation > Transfer load > TRANSFER LOAD TO BYPASS
Use this function to transfer the load from the Inverter voltage to the Bypass voltage.
Figure 136: Operation, Transfer load to Bypass
During normal operation, the load is supplied with power from the Inverter. The inverter voltage
is controlled and regulated to protect the load from any aberrations in the local ac power. When
the load is on the Inverter, battery backup is always ready to ensure a continuous power supply
even in the event of a local ac power failure.
Transferring the load to bypass takes the load off the regulated voltage of the inverter and
supplies the load with power directly from the local ac mains. In bypass mode, no power
conditioning is in effect, and in the event of an ac mains failure there is no battery backup to
supply the load.
Transfer to bypass can occur automatically, when the controller detects a
malfunction in the Inverter or short-circuit in the load.
