Xantrex Technology SW Series Utility Interactive Operation With Utility Backup, Page, Loads

OPERATION

UTILITY INTERACTIVE OPERATION WITH UTILITY BACKUP

The SW Series Inverter/Charger is capable of operating both as a utility interactive and a stand-alone inverter. This allows the system to normally sell the excess power to the utility and, once an outage has occurred, provide power to the AC loads from the battery.

The loads that will be provided with utility backup during outages must be isolated from the non-utility backed-up loads. This usually requires the addition of an AC load center sub panel for the output of the inverter.

UTILITY GRID 120/240 VAC

NOTE: THE BUY AND SELL METERS			UTILITY INTERACTIVE
CAN BE COMBINED			LINE-TIE SYSTEM WITH
INTO ONE TWO-WAY METER			BACKUP OF CRITICAL AC
IF NET BILLING IS ALLOWED.
				LOADS
kWh METER WITH	kWh METER WITH
DETENTS (ONE-	DETENTS (ONE-			DESIGNATES
WAY) 120/240	WAY) 120/240			BI-DIRECTIONAL
VAC	VAC			CURRENT PATH
“BUY” METER	“SELL” METER
	AC DISCONNECT
	(LOCKABLE)			OUTDOORS NEXT
				TO THE UTILITY
	SERVICE		(OPTIONAL)	SERVICE
	ENTRANCE			ENTRANCE
			kWh METER WITH
	PANEL			FUSED
	120/240 VAC		DETENTS (ONE-
				DISCONNECT
			WAY)
AC LOADS	BREAKER	BREAKER		60A/120 VAC
			120 VAC
120/240 VAC	60A/120 VAC	60A/120 VAC
				NEMA 3R
	CIRCUIT		“PRODUCED”
				OUTDOOR TYPE
	BREAKERS		METER
	(FOR HOUSE)

AC LOADS

TO BE

BACKED UP

120 VAC ONLY

#6 AWG

REQUIRED

AC SUBPANEL
FOR UTILITY
BACK-UP AC	FUSED
LOADS	DISCONNECT
“PRODUCED”	60A/120 VAC
	NEXT TO THE
METER
	INVERTER

	FUSED
NEXT TO THE
INVERTER	DISCONNECT
	60A/120 VAC

AC OUTPUT	AC INPUT
TERMINALS	TERMINAL

TRACE SW-SERIES INVERTER/CHARGER 120 VAC

DC BATTERY

TERMINALS

WIND	FUSED	CONTROLLER
GENERATOR	DISCONNECT
			BATTERY
			STORAGE
			SYSTEM
SOLAR	FUSED	PV CHARGE
ARRAY
	DISCONNECT	CONTROLLER

BATTERY

DISCONNECT

Figure 29, Utility Interactive Line-Tie System With Battery Backup Flow Diagram

Page

88

 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