Question about Liebert UPStation GXT 2U GXT2-1500RT120 UPS System
Check the rectifier diodes (4 x 1N4148) after the current transformer feeding the PFC circuit. Could also be PFC inductor problem.
Posted on Jul 15, 2010
Fixya is not associated with any manufacturer. So unless someone here happens to have the schematic you would have to get that from Liebert/Emerson.
Unless the igbt's are being overloaded then the usual suspect area is the driver/switching. Usually that section fails and they latch on and POP.
Posted on May 01, 2010
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Posted on Jan 02, 2017
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