Xantrex Technology 120 VAC/60 owner manual Transfer Time, Operation, Page

OPERATION

While connected to the utility, the battery charger will be engaged. Some applications may want to allow the alternate power source (solar, wind or hydro) to recharge the battery instead of allowing the utility to provide the power. The only option is to program the SET MAX CHARGE AMPS AC menu item under the BATTERY CHARGING (10) menu heading to the minimum value, 1 amp AC, and set the BULK VOLTS and FLOAT VOLTS settings, also under the BATTERY CHARGING (10) menu heading, to a low value.

TRANSFER TIME

Normally there is no transfer time from the inverter to utility power or generator. The inverter operates in parallel with the AC source at all times - even when battery charging. This allows the transfer from inverter to the utility grid or generator to be interruption-free and virtually unnoticeable.

However, in SELL mode, when the utility grid fails, the inverter will reach the overcurrent protection system setting (since it is will try to power everything that is connected to the grid). The inverter will momentarily shut off while it opens the internal AC input relay. Once the relay has opened, the inverter will begin to operate within a single cycle. This results in a 20 millisecond transfer period. Most AC loads, including computers, will not be affected during the transfer.

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 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