6.2
Modes of Operation
The following list of operation modes is explained in the following sections.
Line mode
Backup mode
Standby
Shutdown
Fault
6.2.1
Line Mode
In line mode, the voltage input equals the voltage output. The FXM350 has Automatic Voltage Regulation (AVR)
to maintain the output voltage within the regulation range.
6.2.1.1
Boost Mode
When the input voltage drops, a reduction in
output voltage is prevented by increasing
the ratio of primary to secondary windings in
the transformer. The ratio is increased by
using a relay to change the transformer taps.
6.2.1.2
Buck Mode
When the input voltage increases, an
increase in output voltage is prevented by
decreasing the ratio of primary to secondary
windings in the transformer. The ratio is
decreased by using a relay to change the
transformer taps.
132
Input
120
120
Grid relay
108
INV
N
132
Input
120
120
Grid relay
108
INV
N
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Summary of Contents for FXM 350 Series
Page 1: ...Alpha FXM Series 350 USER MANUAL...
Page 21: ...Page 20 to 106...
