Standard Features - Xantrex GT5.0-NA-240 Owner's Manual

Introduction
PV compatibility
Utility grid
compatibility
Maximum Power
Point Tracking
(MPPT)
High efficiency
GT4.0N and
GT3.3N models
Positive-ground
models
Expandable
Communications
protocol

Standard Features

1–2
The GT Inverter is designed to take advantage of solar modules configured as high
voltage PV string arrays—single crystalline, poly crystalline, or thin film—with
an input voltage Maximum Power Point range (depending on inverter model) of
195 to 550 Vdc, 240 to 550 Vdc, 240 to 480, or 200 to 400 Vdc. See "Electrical
Specifications" on page A–2 for more information.
The GT Inverter can operate on either 240 V or 208 V nominal grid voltage. The
inverter senses the phase-to-phase voltage and automatically changes the power
limit value for each grid voltage. The disconnect thresholds (see "Adjustable
Voltage, Frequency and Reconnection Settings" on page A–10) remain the same
because both nominal voltages have the same 120 Vac phase-to-neutral
thresholds.
The GT Inverter uses Xantrex proprietary Maximum Power Point Tracking
(MPPT) technology to harvest the maximum amount of energy from the solar
array. Xantrex MPPT learns your array's specific characteristics, maximizing its
output at all times.
The high-frequency, solid-state design of the GT Inverter is extremely efficient.
See Appendix A, "Specifications" for the efficiency ratings of each model.
The GT4.0N and GT3.3N models feature higher efficiency ratings over a narrower
input voltage maximum power point range.
Xantrex offers positive-ground models (designated by the -POS suffix in the
model name) designed to work with positive-grounded PV arrays. Some brands of
PV modules require positive grounded arrays for increased power harvest.
Although most PV modules work fine with negative-ground GT Inverter models,
the installer must confirm the PV array grounding type with the module
manufacturer before installing the inverter.
Multiple GT Inverters may be networked together for increased net metering
capacity or future system growth. All models have adjustable voltage and
frequency disconnect settings and can be aggregated above 30 kW on a single
point-of-common-coupling (PCC). See "Adjustable Voltage, Frequency and
Reconnection Settings" on page A–10.
The GT Inverter uses the Xanbus
communicate with multiple units connected within the system. For more
information, see "Xanbus Network Technology" on page 3–12.
The GT Inverter has the following standard features:
• Sealed inverter section protecting power electronic components;
• Liquid Crystal Display (LCD) providing easy-to-read system status and daily
cumulative energy production information;
• Two LED indicator lights providing status and ground fault indication;
• Wiring/disconnect box providing protection for all AC and DC connections
and eliminating exposed "live" wiring if the inverter is removed.
®
communications protocol, enabling it to
975-0334-01-01