Xantrex Technology PV-225208 - page 33

SECTION 7
APPENDIX
PV-225208 Photovoltaic Inverter
Operation and Maintenance Manual
Copyright 2003, Xantrex Technology Inc.
DOCUMENT: 151811 7-3
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* Inverter trips off line within two cycles on over/under voltage and frequency faults. It should be
noted that the voltage trip limits can be up to 1% off from the actual grid voltage at full load due to
the 1% regulation of the isolation transformer. The PV-225208 uses phase to phase voltage measurement
to detect the under/over voltage trip limits. For an unbalanced, single phase voltage variation of +10% and
-12% as per UL1741 the trip limits must be set to 220V for maximum AC voltage and 193V for minimum
AC voltage. Consult your local utility for their specific requirement.