Xantrex Technology 120 VAC/60 Utility Interactive Mode, Ground Fault, Protection, Backed Up, Page

OPERATION

UTILITY INTERACTIVE MODE

UTILITY GRID

kWh METER

AC

OUTDOOR AC DISCONNECT

MAIN AC LOADS

AC NOT PROVIDEDSOLAR ARRAY WITH BACK-UP

			DC
AC	INVERTER/	GROUND FAULT
	CHARGER	PROTECTION

AC DC DC

BACKED UP	BATTERY		OVERVOLTAGE
AC LOADS		DC
			PROTECTION
SUB-PANEL

IN BRIEF

In this mode, SW Series Inverter/Chargers can be used to move power from the DC system into the AC utility grid. This is often called “selling” power since the utility pays for the power you produce. It is relatively simple to set the inverter up to accomplish this. However, this type of installation is so new that many utility companies have not formalized their regulations regarding acceptable installations. Regulations will vary from one utility to another. The utility companies have a right and a need to be careful about how power is fed into their system. Utility interactive should be done with the assistance of your dealer and must be done with the approval of the local utility company.

As a minimum, an outdoor mounted AC disconnect should be installed at the service entrance or next to the utility meter. It should be clearly labeled “SOLAR ELECTRIC SYSTEM AC DISCONNECT”. This will allow utility and emergency personnel to easily and safely isolate the system from the utility grid if required. This disconnect should be lockable (by the utility) and installed between the AC HOT 1 INPUT of the inverter and the circuit breaker in the AC load center connected to the utility grid. This allows the utility to shut off the system if a problem occurs.

Since a utility interactive installation requires an understanding of your local utility code, limited diagrams and details are included in this manual. Consult your utility or your local Xantrex dealer.

To operate the system in utility interactive mode, set-up the system as follows:

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

•Connect the critical AC loads that are required to be backed-up, to the inverter’s AC HOT OUT and NEUTRAL OUT terminals.

•Use the GRID USAGE TIMER (18) and the BULK CHARGE TRIGGER TIMER (15) with the battery charger parameters adjusted under the BATTERY CHARGING (10) menu heading to determine the battery voltage level you require for your batteries.

•Select SELL from the SET GRID USAGE menu item in the INVERTER SETUP (9) menu heading.

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

•Adjust the AC input voltage parameters using the SET INPUT LOWER LIMIT VAC and the SET INPUT UPPER LIMIT VAC menu items, both located in the AC INPUTS (11) menu heading to match the AC voltage requirements of your connected utility.

 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

Page

83