Xantrex Technology GT3.0 owner manual 3Long Distance Grounding Overview

Page 38

Installation

PV Array

PV String #1

G

PV String #2

G

When the distance between the PV Array and the GT Inverter is greater than 30 m (100 ft), the array should have its own earth ground, which should be connected to the Primary Earth Ground by a buried wire.

Check your local codes for grounding requirements.

Main Utility

Service Panel

Array

Earth

Ground

Distance >30 m (100 ft)

L1	L2
NEUTRAL
	Neutral
	-to-
	Ground
GROUND	Bond
GROUND
G	G

Xantrex GT Inverter

Wiring Box

GND bar

Primary

G

Earth

AC/DC DisconnectGround

Switch

(buried wire)

Figure 2-3Long Distance Grounding Overview

2–10	975-0131-01-01

Image 38

Contents Xantrex Grid Tie Solar Inverter Page Xantrex Grid Tie Solar Inverter Date and Revision Organization ScopeAudience Conventions Used Abbreviations and AcronymsRelated Information Page Important Safety Instructions To locate the firmware version number Regulatory ComplianceFCC Information to the User Commissioning Test Verification and Commissioning TestPurpose Verification TestPage Contents Starting the Inverter Wiring the InverterMaintenance and Troubleshooting Monitoring the InverterIndex SpecificationsWarranty and Return Information Xiv Figures Xvi Tables Xviii Introduction About the Xantrex Grid Tie Solar Inverter Xantrex GT InverterStandard Features MpptOptional Features 2Main Features of the GT InverterSafety and Standards 3Safety and Data Label LocationsWiring Box standard on North American models Removable ComponentsOptional Heat Sink Cover and Fan GT3.0-aa 2-bb-230 Model Configurations1GT Inverter Models Installation Single Inverter Installation Installation OptionsPlanning the Installation Multiple Inverter InstallationsSingle Inverter Installation Multiple Inverter InstallationInverter Location General Recommendations Equipment and Installation RecommendationsPV Array Requirements 1MPPT Operational Window Voltage Effect of Array Voltage Inverter ModeVoltage and Mppt Requirements Planning the Installation Lightning Protection Grounding RequirementsLong Distance Grounding AC GroundingXantrex GT Inverter Wiring Box 2Basic Grounding Overview3Long Distance Grounding Overview Routing the Wires 4Grounding With Extra Lightning Protection OverviewPlanning AC Wire Routing Planning DC Wire RoutingCircuit Breakers and Disconnect Switch Preparing for the InstallationWiring AC Circuit Breaker RequirementsOther Materials Needed AC/DC Disconnect SwitchGround Fault Fuse Equipment NeededMounting the Inverter OverviewKnockout Preparation Dimensions and Knockout LocationsPreparing to Mount the Unit Installing the Mounting Bracket 7Dimensions of GT Inverter and Knockout LocationsLocation Minimum Clearance Clearance Requirements2Inverter Clearance Requirements Surfaces for Mounting Ground Floor To mount the unit using polesMounting on Poles or Rails Mounting on Wallboard, Siding or Concrete To mount the GT Inverter to wallboard, siding, or concreteTo mount the inverter on the mounting bracket Mounting the Inverter on the BracketMounting a Single Inverter Mounting Multiple Inverters in Parallel Installing AccessoriesInstalling the Fan Assembly To attach the fan assembly to the inverter 12Attaching the fan assemblyTo connect the fan wires 13Location of Fan ConnectorTo remove the heat sink cover from the inverter Installing the Heat Sink CoverTo install the heat sink cover on the inverter Wiring the Inverter Accessing the Wiring Terminals To remove the wiring box cover2AC and DC Terminal Block Location in the Wiring Box Connecting the DC Wiring 3AC/DC Disconnect Switch PositionsWire Size Torque To wire the PV array to GT Inverter1Torque Values for Wires Xantrex GT Inverter Wiring Box 4DC Connections for Grounded PV ArrayConnecting the AC Wiring To wire the main utility service panel to the GT Inverter 5AC Connections from GT Inverter to Utility Service Panel Xantrex GT InverterService Panel Wiring BoxTo wire the PV array to GT Inverters in parallel Connecting Inverters in ParallelDC and AC Wiring for Inverters in Parallel 6Parallel GT Inverter DC and AC Wiring Communications Wiring for Inverters in Parallel Xanbus Network Technology9Xanbus RJ45 Ports in the GT Inverter Wiring Box Male Network TerminatorCabling Requirements RJ45 Connector Requirements2T568A Standard Wiring Conductor Name CAT 5 Cable Insulation Color3Network Components and Part Numbers Guidelines for Routing the Network CablesPurchasing Network Components Wiring the Inverter 11Communications Wiring for GT Inverters in Parallel Page Starting the Inverter Checking the AC Utility Voltage Startup ProcedureChecking the PV Array DC Voltage To check the PV array DC voltageTo replace the front panel cover Replacing the Wiring Box CoverTo replace the wiring box cover Starting up the GT Inverter To start up the inverterMonitoring the Inverter Monitoring the Front Panel Display 1Front Panel LCD Location1Startup Screens on GT Inverter Front Panel Display Startup ModeFront Panel Display Screens and What They Mean Display Duration Description3Normal Operation Screens for All GT Inverter Units 2Normal Operation Default ScreenTo view more Normal Operation information DisplayTo view unit-specific screens in a multiple unit system Offline Mode5Offline Mode Default Display Multiple Unit SystemMultiple Unit Fault ModeOffline Mode Screens for All GT Inverter Units 25kWhVoltageFault 8Fault Message ScreensDisplay Description Additional Fault Mode ScreensSpecial Screens 10Special Message Screens Status Indicator Lights11Status Indicator LEDs LEDonMeansGreen LED Maintenance Factors Affecting GT Inverter Performance PV Array FactorsOther Factors Performing General MaintenanceReplacing Parts Replacing the Ground Fault Protection Fuse To replace a ground fault protection fuseReplacing the Inverter 1Location of Fuse, Front Panel Cover RemovedTo remove the inverter from the wiring box 2Inverter and Wiring Box Sections To replace the inverter on the wiring boxIdentifying Error/Fault Conditions and Solutions 1Troubleshooting the GT InverterSpecifications Output Electrical SpecificationsInput GT3.0 EuropeanAdjustment Range Setting Adjustable Disconnect SettingsOutput Power Versus Ambient Temperature Efficiency Figure A-2Typical EfficiencyUser Display Environmental SpecificationsMechanical Specifications Accessories GT Fan Kit includes fan assembly and heat sink coverWarranty and Return Information WarrantyExclusions DisclaimerProduct Out of Warranty Service Return Material Authorization PolicyReturn Procedure PV Details Information About Your SystemInverter Details Index Port 3-13, 5-7 Torquing 3-5, 3-10 wire sizes IX-4 Page Xantrex Technology Inc