How does it perform?
The Real Time Flux Control™ is the optimal
solution for inrush reduction, it cleanly
disconnects the failing source and transfers the
critical load to a more reliable power quality
source. Figures 2 and 3 show an out of phase
emergency transfer done on a 480 volt, 600 amp
STS feeding our 225kVA PDU transformer, the two
sources were 60 degrees and 180 degrees
respectfully, and the transfer mode selected was
the recommended “DIR limited.” The outage time
was measured to be 5.50 millisecond in the first
case and 11.30 milliseconds in the second with no
inrush observed.
An intelligent method for Dynamic Inrush Restraint
• Makes secondary switching (one PDU
transformer) reliable.
• Eliminates the need for complex inverter control
schemes.
• Maintains true independence between UPS
systems (higher reliability).
• Keeps inrush value lower than 1.2x.
• Exceeds the ITIC and CBEMA curves standards
for critical loads, see figure 4 above.
• Smoothly transfers the load without creating
unnecessary voltage discontinuity and
disturbances to the load.
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