Separate bypass on separate lines:
When the separate bypass option is present, protective devices should be placed on both the main power supply line and the
bypass line.
Note:
The neutral of the input line and that of the bypass are commoned inside the equipment, therefore they must refer to the
same potential. In case the two power supplies were different, an isolation transformer would be necessary on one of the
inputs.
UPS with no modification of the neutral regime and with separate bypass input
connected to an independent power supply line
UPS with separate bypass input connected to an independent power supply line
and with input galvanic isolation
UPS with separate bypass input connected to an independent power supply line
and with output galvanic isolation
