Xantrex Technology 120 VAC/60 owner manual Utility Backup Mode, Brief

OPERATION

UTILITY BACKUP MODE

UTILITY GRID
	AC
	MAIN
AC BREAKER		AC
PANEL
	AC
NON-CRITICAL
AC LOADS

GENERATOR

AC

INVERTER/ CHARGER

DC

BATTERY

ADDITIONAL

AC AC BREAKER SUB-PANEL

AC

CRITICAL

AC LOADS

IN BRIEF

SW Series Inverter/Chargers provide an excellent utility system backup under the majority of powering applications. Whenever a shorted grid condition affects voltage or frequency, the inverter disconnects itself from the grid and continues to support the AC load using battery power. Typical transfer time under a shorted grid condition is instantaneous.

Depending upon the type and amount of load, the transfer may, at times, be noticeable. This is due to the inverter’s output reaching the overcurrent trip level as it tries to maintain the load before the internal relay transfers to battery power.

To operate the system in utility backup mode:

•Connect utility AC power to the inverter'sAC HOT IN 1 and NEUTRAL IN 1 terminals.

•Connect the AC loads to the inverter'sAC HOT OUT and NEUTRAL OUT terminals.

•Adjust the battery charger parameters if the factory default values are not satisfactory. For UPS applications with small battery banks, lower the battery-charging rate.

•Adjust the GRID (AC1) AMPS AC menu item to match the amperage of the circuit breaker supplying AC to the inverter input. This setting is located in the AC INPUTS (11) menu heading - (See UTILITY SUPPORT/OVERLOAD PROTECTION, on page 82).

 2001 Xantrex Technology, Inc.	Telephone: 360/435-8826	SW Series Inverter/Charger
5916 - 195th Street N. E.	Fax: 360/435-2229	Part No. 2031-5
Arlington, WA 98223	www.traceengineering.com	Rev. C: February 2001

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